Saturday

July 30, 2016
Number of results: 121,215

**math..HELP!**

Can someone check over these math problems that I did? Please? 1. The bloodhound, a type of dog, has 4.0 X 10^9 (10 to the ninth power) scent receptors in its nose. A human has 1.2 X 10^7 scent receptors. How many times more scent receptors does a bloodhound have than a human...
*February 25, 2008 by skye*

**Calculus**

At a price of $7.5 per ticket, a musical theater group can fill every seat in their 1550 seat performance hall. For every additional dollar charged for admission, the number of tickets sold drops by 55. a) What ticket price maximizes revenue? Round your answer to the nearest ...
*November 3, 2010 by Erika*

**Calculus Help**

At a price of $7.5 per ticket, a musical theater group can fill every seat in their 1500 seat performance hall. For every additional dollar charged for admission, the number of tickets sold drops by 95. a) What ticket price maximizes revenue? Round your answer to the nearest ...
*July 15, 2014 by Anonymous*

**calculus **

At a price of $7.5 per ticket, a musical theater group can fill every seat in their 1500 seat performance hall. For every additional dollar charged for admission, the number of tickets sold drops by 95. a) What ticket price maximizes revenue? Round your answer to the nearest ...
*July 16, 2014 by Anonymous*

**math decimal as percent**

can you check these: i need to write each decimal as a percent: 30) 0.03 == .3% 31) 1.8 = 180% 32) 0.0025 = .25% 33) 5.3 = 530% 34) 0.0041 = .41% 35) 0.083 = 8.3% 36) 0.0009 = .09% 37) 0.83 = 83% 38) 20 = 2000%
*February 13, 2012 by marko*

**Microeconomics**

Suppose that the price of product X rises by 20 percent and the quantity supplied of X increases by 15 percent. The coefficient of price elasticity of supply for good X is?
*February 26, 2014 by Kevin*

**physics URGENT! HELP**

If an object is thrown in an upward direction from the top of a building 1.60 x 102 ft. high at an initial velocity of 21.82 mi/h, what is its final velocity when it hits the ground? (Disregard wind resistance. Round answer to nearest whole number and do not reflect negative ...
*November 7, 2012 by Alexis*

**Math - Please Help Me!**

How many ways can an IRS auditor select 3 of 11 tax returns for an audit? There are 8 members on a board of directors. If they must form a subcommittee of 3 members, how many different subcommittees are possible? License plates are made using 3 letters followed by 3 digits. ...
*December 5, 2009 by Ashley*

**math**

Jefferson Bank made a loan at 6% interest for 146 days. If the amount of interest was $36.50, use the ordinary interest method to find the amount of principal borrowed. Round to the nearest whole dollar amount
*June 19, 2014 by Anonymous*

**Math**

What percent is the greatest? 0.01% or 0.05%. If I wanted to buy a cream that has the greatest strengh, which percent would I purchase?
*October 10, 2008 by Kre*

**math!**

Frank had a pretest score of 6, what must his posttest score be for his percent of increase to be 50 percent?
*April 14, 2011 by Sara*

**Math**

What percent of 88 is 33? Solve using Percent equation. I solved for x in the equation 33=88x and I got 0.4. Did I do it right?
*January 28, 2016 by Emma*

**Chemistry**

N = Sp.gr*1000* percent% / eq.wt Prepare 200 ml of 5 N H2SO4 solution from concentrated H2SO4 , if we know that Sp.gr = 1.84 g/ml , percent = 98% , At.wt for (H= 1 , S=32 , O =16 ) Thank you a lot
*March 2, 2016 by MAD*

**math ,correction**

is this right? Find the standard deviation to the given data. The manager of a small dry cleaner employs six people. As part of their personnel file, she asked each one to record to the nearest one-tenth of a mile the distance they travel one way from home to work. THe six ...
*July 13, 2007 by student*

**math percents**

can you check these: what percent of 64 is 48? i got 75% 25% of what number is 24? i got 96 48% of 83 is what number? i go 39.84 what percent of 530 is 107? i got : 201.88 62% of what is number is 84? i got 135.48 what percent of 42 is 7.5? i got 17.86 37% of 245 is what ...
*February 29, 2012 by marko*

**Jiskha**

This isn't a question but I just want to thank everyone who helps others out on here. It's great that you don't answer some people if they don't give their answer. People are here for help, not to cheat. And you helpers actually help them work it out or you check their answer...
*April 16, 2015 by Anonymous *

**Please Check my Journal for MacBeth**

Running Journal: Macbeth (Act 1 Scene 1) Thunder and lightning; enter three Witches: In the play as a whole, people are tossed about by forces that they cannot control, and so it is in the opening scene. The witches, blown by the storms of nature and war, swirl in, then out. ...
*March 5, 2007 by margie*

**math**

Question: Find the given percent or fraction of the number. 14. 30% of 256 15. 25% of 2,048 16. 2/3 of 24 17. 5/6 of 90 How do i figure those out? I don't whant the answer I wanna know how to sovle them.
*January 15, 2008 by brittany*

**maths**

The hypothetical finance ltd has structured a hire-purchase deal.The required to make a down payment of 20 percent of the investment cost.The hire term is four years with quarterly payment in advance . The flat rate of interest is 13 percent. The finance company would charge a...
*November 21, 2011 by donald*

**maths**

The hypothetical finance ltd has structured a hire-purchase deal. The required to make a down payment of 20 percent of the investment cost. The hire term is four years with quarterly payment in advance. The flat rate of interest is 13 percent. The finance company would charge ...
*November 23, 2011 by donald*

**6th grade Math**

Having a problem on a proportion question. The problem is you have surveyed 30 people on their favorite song. 21 females and 9 males. The most popular genres are pop, country, and hip hop. The ratio for females who picked pop is 18 to 21 and the raio of males who picked pop is...
*September 26, 2012 by Brandi*

**chem word problem**

A balloon is filled with 14 L of gas at 302 K. What is its temperature in Kelvin when the volume expands to 20 L? Round to the nearest whole number. Don't forget the units.
*May 10, 2013 by ty*

**alegbra**

you have N= 2,500 + 100 -Ina Cm > with a line under the > 1 How many units are sold after spending $1,000? Round the answer to the nearest whole number.
*May 8, 2014 by Mary *

**English**

Can you please check these five sentences for me I find it difficult to correct. 1)1984 can be considered (as) an anti-utopian novel because it provides the description of a society in which a totalitarian government controls any action of the people. 2)In this (?) state of ...
*March 9, 2011 by Mike*

**Maths**

Ms.Enclair has a fortnightly salary of $1,200 per fortnight for other expenses. What percent of her salary does she spend in a month? How many percent does she spent on food?
*July 27, 2016 by Khann*

**math**

p=3000 a=3180 plus 1yr simple interest rate=r tothe nearest tenth percent
*January 28, 2013 by Anonymous*

**statistics**

Suppose we have a population of scores with a mean (μ) of 200 and a standard deviation (σ) of 10. Assume that the distribution is normal. Provide answers to the following questions: What score would cut off the top 5 percent of scores? What score would cut off the ...
*October 29, 2011 by lori*

**stats**

Suppose we have a population of scores with a mean (μ) of 200 and a standard deviation (σ) of 10. Assume that the distribution is normal. Provide answers to the following questions: What score would cut off the top 5 percent of scores? What score would cut off the ...
*October 30, 2011 by lori*

**Chemistry **

You start with a 20ml mixture of two compounds. After distillation you end up with 10ml of distillate 1 and 8.4ml of distillate 2. What is the relative volume percent of each compound in the pre-distilled mixture? (Do I just do: volume percent of mixture1=10/20 and volume ...
*March 14, 2016 by Danny *

**Math proportions**

If the wait time in line to ride a roller coaster is 20 minutes for 150 people how long is the wait time for 240 people? 240-150 = 90 people 150 people = 20 minutes 90 people= 40 minutes?
*January 21, 2015 by Ty*

**Chem**

Suppose 22.93mL of KMnO4 solution used in the question above (KMnO4 solution in above question 36.00mL and concentration of 0.02036M)are needed to oxidize Fe(2+) to Fe(3+) in a 0.4927g pill. What is the mass percent of FeSO4 (dot) 7H2O (molar mass 278.03g/mol) in the pill? ...
*May 22, 2011 by Meso*

**Economics**

1. You read the following information about the economy: Real GDP up three percent from a year ago. Unemployment rate of 6.1 percent. Consumer Price Index up six percent from a year ago. Index of Leading Indicators up for the last six months. Prime interest rate of ten percent...
*April 5, 2011 by Jen*

**alg**

1. (20 points) Police use the equation to estimate the speed (s) of a car, in miles per hour, based on the length (x), of its skid marks upon sudden braking on dry asphalt. a. Solve this equation for d. b. A motorist is involved in an accident. The skid marks are measured to ...
*July 23, 2011 by patricia*

**geometry**

A CIRCLE HAS AN AREA OF 50 SGUARE FEET.WHAT IS THE APPROXIMATE DIAMETER OF THE CIRCLE?ROUND TO THE NEAREST WHOLE FOOT.
*April 6, 2010 by KYLE*

**Physics**

In a "Rotor-ride" at a carnival, people are rotated in a cylindrically walled "room." The radius of the room is 5.5 m, The coefficient of static friction is μ=0.1. What is the minimum rotation frequency such that the people will not slide down the wall when the floor ...
*October 10, 2011 by Alex*

**Physics**

In a "Rotor-ride" at a carnival, people are rotated in a cylindrically walled "room." The radius of the room is 4.0 m, The coefficient of static friction is μ=0.13. What is the minimum rotation frequency such that the people will not slide down the wall when the floor ...
*March 1, 2013 by Derrick*

**Urgent math pls **

The noise from a power mower was measured at 108 dB. The noise level at a rock concert was measured at 119 dB. Find the ratio of the intensity of the rock music to that of the power mower. (Round your answer to the nearest whole number.) I tried by 108-119 =-11 but then I did ...
*August 11, 2015 by alice*

**math**

Six hundred people came to the band concert that was held on the school's athletic field. half of the people sat in the bleachers. one third of the people sat in chairs on the track. the rest of the people sat on the grass. How many sat on the grass? In chairs? In the bleachers?
*January 31, 2013 by Anonymous*

**math**

A gallon of paint covers about 350 square feet how many gallons would be required to paint a room that is 11 ft in length 10 1/2 in width and 9 ft 7 inches in height. round up to the nearest gallon
*April 20, 2009 by yorkie16*

**Maths**

How to work out the comparison 13 out of 39 as a percent
*December 8, 2010 by Shannon*

**trig**

A tree on a hillside casts a shadow c ft down the hill. If the angle of inclination of the hillside is b to the horizontal and the angle of elevation of the sun is a, find the height of the tree. Assume a = 48°, b = 18° c = 235 ft. (Round your answer to the nearest whole ...
*November 29, 2012 by Anonymous*

**MATH - URGENT!!!**

6 people are sitting around a table. Let x be the number of people sitting next to at least one woman and y be the number of people sitting next to at least one man. How many possible values of the ordered pair (x,y) are there? (For example, (6,0) is the pair if all 6 people ...
*October 27, 2013 by Epic*

**4th grade**

Four out of five dentist surveyed chose sugarless gum for their patients. If 1000 dentist were surveyed, how many recommended sugarless gum?
*February 16, 2010 by Ana*

**Math Word Problems**

How many ways can an IRS auditor select 3 of 11 tax returns for an audit? There are 8 members on a board of directors. If they must form a subcommittee of 3 members, how many different subcommittees are possible? License plates are made using 3 letters followed by 3 digits. ...
*December 5, 2009 by Ashley*

**Sociology**

Did I answer my questions correctly? Which sociological perspective would likely contend that the role of the mass media is to provide socialization, enforce social norms through public events, and create social stability and cohesion through collective experiences? (My ...
*April 12, 2011 by Sharon*

**language arts**

What statement in the passage weakens the argument that personal music players cause hearing loss? Experts say more research is needed to prove a definite link between portable music and DVD players and hearing loss. Twenty-nine percent of students reported saying "what" or "...
*December 17, 2015 by sasha*

**Math **

What is 17/50 as a percent and what is 1 3/10 as a percent and what is 1 5/10 as a percent
*November 19, 2013 by Anabelle*

**algebra**

The table lists average monthly temperature and electricity cost for a Texas home in 2008 the table displays the values rounded to the nearest whole number make a scatter plot how would you describes the correlation? January 57 A.T. 150 E.B. February 55A.T. 152 E.B March. 60 A...
*March 12, 2014 by snow*

**finance**

Tangshan Mining is considering issuing long-term debt. The debt would have a 30 year maturity and a 12 percent coupon rate and make semiannual coupon payments. In order to sell the issue, the bonds must be underpriced at a discount of 2.5 percent of face value. In addition, ...
*July 15, 2013 by Michelle*

**math**

A designer enlarged both the length and the width of a rectangular carpet by 50 percent. The new carpet was too large so the designer was asked to reduce its length and its width by 20 percent. By what percent was the area of the final carpet design greater than the area of ...
*May 20, 2016 by PLEASE HELP :)*

**Math**

26 people surveyed, 19 said they like basketball, 12 said they like football, and 5 said they like both. How many people said they like basketball but not football?
*April 24, 2013 by Anonymous*

**Visual Basics 2008**

This is a from chapter 3 #82. the problem is: Write a program to calculate the amount of a server's tip given the amount of the bill and the percentage tip obtained via imput dialog boxes. The output should be a complete sentence that reiterates the inputs and gives the ...
*October 22, 2010 by Lee*

**Math**

4. Columbus had a hard time convincing anyone to undertake the expense of financing a voyage to an unknown place. Based on the information available from other sailors and partly on his own ideas, Columbus underestimated the circumference of the Earth by twenty-one percent. ...
*March 31, 2014 by Sue*

**math**

if 15 percent of 220 students chose going shopping out of the 220 percent students chose s how many chose go shopping. my answer is 33 am i correct
*December 20, 2012 by Americal*

**finance**

1.Bill and Warren are thinking about issuing 11 percent coupon bonds that will mature in 15 years. Market interest rates are 13 percent. What could they sell each of the bonds for?
*October 7, 2014 by lori*

**Math**

I have two more questions :)) If 1/3 is equivalent to 33 1/3%, what percent is equivalent to 2/3? A: 33 2/3% B: 150% C: 66 2/3%**** D: 65% Which proportion can be used to solve the following percent problem? What is 50% of 70? I came up with x/50 = 70/100
*November 23, 2015 by Cami*

**7th grade math**

Suppose 36 videos are added to a video collection that has 24 videos. What is the percentage of change. I got 50 percent....my mom says it's 150 percent. thanks!
*January 5, 2016 by Peggy*

**Math**

Needing help setting these problems up...not necesarily giving me the answers. thanks. In January 2009 the state of Nevada was facing a budget deficit of $1.5 billion. The population of the state was approximately 2 million. How much would each person in the state have to ...
*January 27, 2015 by Ashley*

**Math**

write each decimal as a percent: 1.07 35 0.003 0.0077 what do i do to convert the decimal into a percent??
*October 15, 2014 by Stephanie*

**Ethics**

should united states government policy favor certain kinds of immigrants? What do you think? Should we favor certain nationalities as we have throughout most of our history? Should we favor skilled and educated workers? Should we favor spouses and children of legal residents? ...
*January 10, 2007 by Anonymous*

**Principles of Finance**

Warmack Machine Shop is considering a four-year project to improve its production efficiency. Buying a new machine press for $490,000 is estimated to result in $200,000 in annual pretax cost savings. The press falls in the MACRS five-year class, and it will have a salvage ...
*October 31, 2015 by frank*

**Math**

Fraction 7/8 Decimal 0.875 Percent 87.5 Fraction 49/50 Decimal 0.98 Percent 98% Fraction 1/4 Decimal 0.25 Percent 2.5% Simplify if needed.
*September 17, 2013 by Jerald*

**Math**

In a marketing survey involving 1,000 randomly chosen people, it is found that 630 use brand P, 420 use brand Q, and 210 use both brands. How many people in the survey use brand P and not brand Q? Answer choices: 210 people 420 people 630 people none of these
*March 27, 2014 by Helena*

**algebra**

suppose a student scores in three tests of english 15 out of 25,28 out of 40 and 24 out of 30.if the test are given equal value what is the average percent of the student and which is the best result
*March 7, 2011 by marako*

**math**

The Population of a town increased by 80% in 5 years. If the population is currently 18,000, find the population of this town 5 years agao. (Round to the nearest whole, if necessary). please send formula of this equation
*September 3, 2007 by Terrance*

**Algebra 2**

A random sample of 1000 people was chosen for a survey. 80% of them had health insurance. Find the 95% confidence interval. Round answers to 4 significant digits.
*December 2, 2015 by Abbie*

**English**

Could you check these few sentences, please? Thank you. 1) What are people intolerant about (is "of" also possible)? 2)They are intolerant about the color of the skin, religion and clothes. 3) They are prejudiced against people of other religions. 4) In the past, she got hurt ...
*October 14, 2011 by Henry2*

**Math**

Real Reverse Nominal Returns You purchase 100 shares of stock for $40 a share. The stock pays a $2 per share dividend at year-end. What is the rate of return on your investment for these end-of-year stock prices? What is your real (inflation-adjusted) rated of return? Assume ...
*March 21, 2007 by Antoinette*

**math**

1. the function rule c=10n+26 relates the number of people n who attend a small concert to cost in dollars of c of the concert. Make a table of the imput/output pairs to show the cost if 27,39, and 43 people attend. 2. explain how to write a function rule from the table below...
*April 6, 2016 by Quzzy modo*

**math**

The day started out at 16 F and ended at 25 F. Find the percent change for the temperature throughout the day?
*January 29, 2012 by matt*

**Math**

Consider the weighted voting system [75: 31, 29, 23, 16, 8, 7]. Find each: a. The total number of players b. The total number of votes c. The weight of P3 d. The minimum percentage of the votes needed to pass a motion 9rounded to the next whole percent)
*August 9, 2013 by Anna*

**pre algebra**

What is the diameter of a cone with a height of 10 yards and a volume of 92.4 cubic yards? Round to the nearest whole number.
*May 29, 2012 by amy*

**pre algebra help**

What is the diameter of a cone with a height of 10 yards and a volume of 92.4 cubic yards? Round to the nearest whole number.
*May 30, 2012 by amy*

**Math**

A car traveled 20 kilometers at 2pm and 90 km at 5pm pm how fast did the car travel? Round to the nearest whole number
*May 23, 2016 by Sue*

**Statistics**

Suppose we have a population of scores with a mean (ě) of 200 and a standard deviation (ó) of 10. Assume that the distribution is normal. Provide answers to the following questions: What score would cut off the top 5 percent of scores? What score would cut off the bottom 5 ...
*July 20, 2011 by Sam*

**Statistics**

Suppose we have a population of scores with a mean (ě) of 200 and a standard deviation (ó) of 10. Assume that the distribution is normal. Provide answers to the following questions: What score would cut off the top 5 percent of scores? What score would cut off the bottom 5 ...
*October 19, 2011 by Denise*

**Calc**

How do I do this related rates problem? A plane flying horizontally at an altitude of 1 mi and a speed of 510 mi/h passes directly over a radar station. Find the rate at which the distance from the plane to the station is increasing when it is 6 mi away from the station. (...
*November 10, 2009 by Derick*

**Math**

Find the lateral area of the cone. Use 3.14 fo pi and round result to the nearest whole unit. radius: 15cm Side unit: 28cm Please help!! A) 1,319 cm squared B) 2,639 cm squared C) 707 cm squared D) 2,026 cm squared is the answer B?
*January 13, 2015 by Help PLEASE*

**Math**

Round each number to the nearest whole number 3/14
*September 17, 2012 by Lance*

**statistics**

according to data from the american medical association, 10% of us are left handed. If three people, are randomly selected find the probability that they are all left handed. If groups of 50 people are randomly selected, what is the mean and stadard deviation of left handed ...
*May 7, 2012 by cm*

**Lang. Arts**

Read the following stanza from “Alone”: Lying, thinking Last night How to find my soul a home Where water is not thirsty And bread loaf is not stone I came up with one thing And I don’t believe I’m wrong That nobody, But nobody Can make it out here alone. Think about the ...
*February 26, 2013 by Cassie*

**calculus**

The circumference of a sphere was measured to be 76 cm with a possible error of 0.2cm. 1. Use differentials to estimate the maximum error in the calculated surface area. Please round the answer to the nearest tenth. 2. What is the relative error in the calculated surface area...
*April 13, 2007 by Sam*

**Psychology**

3.If you adopt the _______ perspective, you'll reject an emphasis on what goes on in people's minds in favor of focusing on measurable behaviors that can be objectively measured. A. psychodynamic B. neuroscience C. cognitive D. behavioral 4.Agatha maintains that people are ...
*May 4, 2016 by Emma*

**oceanography**

1. How much of the total water at earth's surface is fresh water? 2. Of all the freshwater at the earth's surface, what percent is found as ice and glaciers? 3. What percent of all freshwater is groundwater? 4. What percent of the rainfall that falls on continents is returned ...
*December 12, 2006 by Ashley*

**Finance**

Keenan Co. is expected to maintain a constant 3.8 percent growth rate in its dividends indefinitely. If the company has a dividend yield of 5.6 percent, what is the required return on the company’s stock?
*October 2, 2012 by Jenna Fray*

**Chem- Percent Yield**

When HgO is heated, it decomposes into elemental mercury and diatomic oxygen gas. If 42.9 g of Hg is obtained from 70.1 g of the mercuric oxide, what is the percent yield of the reaction?
*October 11, 2012 by Lara*

**Chemistry**

I'm supposed to compare the percent composition of gases in the atmosphere at sea level to the percent composition at high altitude.. Would the percents decrease? I don't really understand
*January 16, 2013 by Sara*

**Government**

Suppose you want to take a scientific poll about people’s opinion on a new boating law for Lake Blue. Who should make up your universe—all the people in the United States, only townspeople, only boat owners, only people who live on the lake, anyone who uses Lake Blue, or some ...
*May 12, 2009 by Patrick*

**Science**

A block of ice has the density of 0.97 g/cm3. How much of it will sink below the surface of the water? (Points : 1) About 97 percent of the ice will sink below water. About 3 percent of the ice will sink below water. All—100 percent—of the ice will sink below water. None—0 ...
*October 21, 2011 by Darrian *

**Finance**

An investor in the 28 percent tax bracket is trying to decide which of two bonds to select: one is a 5.5 percent U. S. Treasury bond selling at par; the other is a municipal bond with a 4.25 percent coupon, which is also selling at par. Which of these two bonds should the ...
*June 28, 2014 by Brent*

**Finance**

.An investor in the 28 percent tax bracket is trying to decide which of two bonds to select: one is a 5.5 percent U. S. Treasury bond selling at par; the other is a municipal bond with a 4.25 percent coupon, which is also selling at par. Which of these two bonds should the ...
*June 30, 2014 by Tawanna*

**Trig**

Whats the height of a flagpole if a student stand 37feet from it and determines the angle of elevation to be 34degrees and her eyes are 5.3 feet from the ground(round to the nearest whole number)
*March 11, 2013 by David*

**Physics**

Bob (80 kg) lands with a resultant GRF of 1200 N at an angle of 80 degrees from the horizontal. Round answers to nearest whole number. What was his vertical acceleration during landing?
*March 20, 2016 by Matthew*

**Math**

4. Columbus had a hard time convincing anyone to undertake the expense of financing a voyage to an unknown place. Based on the information available from other sailors and partly on his own ideas, Columbus underestimated the circumference of the Earth by twenty-one percent. ...
*April 1, 2014 by Sue*

**Math**

Say for example that you need to find out the number of people that need emergency housing for in a neighbourhood. would you multiply the population of the area by the total percentage of risk. ex. barnyard population 325 risk is 40% ... do you go 325 time .40 to get the total...
*September 28, 2008 by Karley*

**Algebra**

The goal is to shoot down my friends drone with a paintball. We need to know how quickly my paintball will reach a maximum altitude. And we need to know if my paintball will even reach the height required to reach the drone. His drones maximum altitude is 1200 ft. A paintball ...
*April 29, 2016 by Amanda*

**Physics**

Joan comes across a deep ravine. She was planning on this as she packed a 3.8 m portable telescoping extension ladder. It has a mass of 15 kg. She was told that in order to get to the skull’s last known location, she must get across this 2 m gap. --- | \3.8m | \ __|_2m\____ (...
*November 26, 2015 by Lilly *

**Math/Statistics**

The property restoration company PuroServ is considering switching to new dehumidifiers. Their market research, considering the cost of the new machines and their efficiency, tells them that the switch would give them an 83 percent chance of making a $20,000 profit, a 10 ...
*May 1, 2011 by Rodney*

**english**

Think about the figurative language in this stanza. What is the speaker saying? (1 point) It is hard to find your way at night because it is dark. It is the middle of the night and she is hungry. People find life in being with others. People have to help each other with ...
*March 29, 2014 by james*

**statistics**

Data shows that 88% of the people in a certain population are right-handed. A group of 7 people from this population are selected at random. (a) What would be the expected value for the number of right-handed people in the group? (b) What is the probability that exactly 5 of ...
*March 22, 2011 by Anonymous*