Saturday

October 1, 2016
Number of results: 13,491

**random variables**

For the standard normal random variable Z, compute the following probabilities. For the following problems, use four decimal places. 16. P (0 ¡Ü Z ¡Ü .9) 17. P (-1.3 ¡Ü Z ¡Ü 0) 18. P(Z > 2.5) 19. P(Z ¡Ý -.75) 20. P(Z < .05) 21. P (Z ¡Ü -.72)

*August 2, 2010 by Donna*

**Math**

find the z-scorerelated to the raw score,mean,and standard deviation. Assume a normal probability distribution Raw score= 56u=50,0=4

*October 22, 2010 by Mary*

**chemistry**

Assign an oxidation state to each atom in each of the following compounds. 1) Fe(CN)3 i know Fe= +3 but how do i find the oxidation state for C and N? does CN have a normal over all charge?

*May 5, 2011 by Samantha*

**Physics**

Find the magnetic flux through a circular loop 6.0 cm in diameter oriented with the loop normal at 50 degrees to a uniform 60 mT magnetic field.

*July 6, 2011 by Debra*

**stats**

Given a normal population whise mean is 50 and whise standard deviation is 5, find the probability that a random sample of 25 has a mean greater than 52.

*April 20, 2016 by Anonymous*

**Bio(please it's urgent!)**

A person suffers from abdominal pain. other symptoms are - nausea and vomitting - fever 103 degree - pain in the middle of back - clammy skin her blood test tell the following things?: -high serum amylase -high serum lipase what do u think she is suffering from? please help!!!1

*October 30, 2008 by jess*

**math**

A three person committee is formed with the following people to be considered: A, B, C, D, E. How many different three-person committees can be formed from these five? what is the best way to set up a diagram to answer this question? can you show how to do it or tell what the ...

*January 21, 2008 by chris*

**science**

A description of climate at a particular location would be different than a description of a weather. This is mainly because of the time peiod that is being considered. how do the length of time periods beign referenced in descriptions of climate and weather compare?

*May 15, 2009 by Anonymous*

**Computers (Internet)**

Is this considered plagiarism? Original passage: A letter of thanks is a courteous acknowledgment of a gift or of something that was done for you. Another passage: A thank you note is a polite acknowledgment of a present or something nice someone did for you. Please also ...

*November 20, 2013 by Tiffany*

**History**

Explain John C. Calhoun's Doctrine of Nullification. Answer: The Doctrine of Nullification states that a state had a right to reject, ignore, or nullify a law they considered unconstitutional. Calhoun supported state's rights

*January 28, 2015 by M*

**Biology**

Find an angiosperm that has modified leaves, stems, roots or flowers that do not function in a normal manner? Example: Claifornia Barrel Cactus has spines in place of leaves to reduce water loss.

*July 7, 2008 by Michelle*

**chemistry**

hi this is a question for my lab. explain why the addition of bromine to trans-cinnamic acid takes place more slowly than the addition of Br2 to a normal alkene like 3-hexene or cyclohexene thankss

*January 26, 2009 by steve*

**Statistics**

Is there a rule to figure out if this is a true or false statement? A sample size of 900 is not large enough to conclude that the sampling distribution of p is a normal distribution, when the estimate of the population proportion is .995.

*October 24, 2010 by none*

**Chemistry**

Benzene has a heat of vaporization of 30.72 kj/mol and a normal boiling point of 80.1 degrees celsius. At what temperature does benzene boil when the external pressure is 480 torr? Can someone show me an equation and how to solve this?

*July 19, 2011 by Anonymous*

**physics**

The drawing shows a person (weight W = 580 N, L1 = 0.849 m, L2 = 0.410 m) doing push-ups. Find the normal force exerted by the floor on each hand and each foot, assuming that the person holds this position.

*November 11, 2011 by chelsea*

**physics**

The drawing shows a person (weight W = 580 N, L1 = 0.849 m, L2 = 0.410 m) doing push-ups. Find the normal force exerted by the floor on each hand and each foot, assuming that the person holds this position.

*November 11, 2011 by chelsea*

**physics**

The drawing shows a person (weight W = 580 N, L1 = 0.849 m, L2 = 0.410 m) doing push-ups. Find the normal force exerted by the floor on each hand and each foot, assuming that the person holds this position.

*November 11, 2011 by chelsea*

**Math**

out of these variables which would and would not follow normal distribution. shoe size height age GPA model year of car how many friends on face book Please explain why..thanks

*June 9, 2012 by Ella*

**Math**

Month. Temperature January 41f February 45f March. 54f April. 62f May. 69f Between which two months in Atlanta does thaw normal temperature change the most?

*November 29, 2012 by Shion*

**Statistics**

A shoe store knows that the purchase amount by its customers is a random variable that follows a normal distribution with a mean of $30 and a standard deviation of $9. What is the probability that a randomly selected customer will spend $30 or more at this store?

*December 27, 2012 by Anonymous*

**Biology **

a mother carried the sex-linked gene for color blindness and the father had normal color vision, what would be the probability of having a colorblind son? *using a Punnett Square

*April 6, 2013 by jen*

**solid mechanics**

at a point in a strained material the principal stresses are 60MPa and 40MPa.find the position of the plane across which the resultant stress is most inclined to the normal and determine the value of this stress.

*February 3, 2014 by sabin*

**B-Tech mechanical**

At a point in a strained material the principal stresses are 60MPa and 40MPa. Find the position of the plane across which the resultant stress is most inclined to the normal and determine the value of this stress.

*February 14, 2014 by Ravi*

**fundamental skills**

An 18-month-old child putting large beads in a plastic bowl and pouring them out is A. developmentally superior. B. normal and appropriate. C. developmentally inferior. D. abnormal. my answer I think is a.

*February 15, 2015 by Luis*

**statistics/normal distribution**

Find the area of the shaded region.The graph to the right depicts IQ scores of Adults (85-120), and those scores are normally distributed with a mean of 100 and a standard deviation of 15

*March 4, 2015 by slomomo*

**Statistics **

A researcher conducts a test on the effectiveness of a cholesterol treatment on 114 total subjects. Assuming the tails of distributions are normal distribution, is there evidence that the treatment is effective? What is the Null and alternative hypothesis.

*June 18, 2015 by James*

**statistics**

If the mean value of the weight of a particular brand of dog food is 20.6 lb and the standard deviation is 1.3, assume a normal distribution and calculate the amount of product that falls below the lower specification value of 19.7 lb

*December 21, 2015 by sam*

**Physics**

A 50-kiligram block initially at rest on a flat, level and smooth surface is pulled by 6.0 Newton acting 37 degrees North above the horizontal. Find the normal force and acceleration of the block.

*February 23, 2016 by Jay*

**Science**

1. Which of the following traits is acquired? A. The number of petals that grow in a plants flower B. the wing shape of a wild bird C. The ability of some gorillas to learn sign language** D. A cheeta’s ability to run faster than any other land animal 2. The height of a plant ...

*October 8, 2015 by Aria*

**physics**

A aeroplane with a mass of 9940 kg completes a vertical loop of radius 155m/s. What normal force does the airplane seat exert on the 92 kg pilot at the top of the loop and at the bottom of the loop?

*October 25, 2008 by mike*

**Science**

How much heat is absorbed by a persons hand if 100 grams of steam at 100°C is first converted to liquid water at 100°C and then cooled to normal body temperature?

*July 13, 2011 by Anonymous*

**statistics**

The lifetime of a 2 volt non-rechargeable battery has a normal distribution with a mean of 516 hours and a standard deviation of 20 hours. What is the z- score for batteries with lifetimes of 520 hours

*September 3, 2012 by Gee*

**statistics**

The lifetime of a 2 volt non- rechargeable battery has a normal distribution with a mean of 516 hours and a standard deviation of 20 hours.What is the z- score for batteries with lifetimes of 600 hours

*September 3, 2012 by Gee*

**DBU**

The mean time to complete a psychology exam is 34 minutes with a standard deviation of 8 minutes. Assume the distribution is normal. Find the probability of a student taking less than 28 minutes.

*October 28, 2012 by KiKi*

**Physics**

The collision between a hammer and a nail can be considered to be approximately elastic. Estimate the kinetic energy acquired by a 13 g nail when it is struck by a 550 g hammer moving with an initial speed of 4.1 m/s. I am completely confused by this problem all of my answers ...

*April 29, 2010 by Carden*

**religion, help**

How are newer religions different from older ones? How are they similar? can anyone help me with this one. or help me find a good website for it. I know the basics. older religions have been around longer than the newer ones. the only similarity is that older and newer ...

*February 6, 2007 by kailin*

**Science**

Specifically, where is the fault plane located at a normal fault? near the top? near the bottom?

*March 10, 2009 by Angie*

**grammar**

The patient is alert and oriented and has normal mental status exam. which are verbs? alert = v oriented = v is = v

*July 5, 2009 by tina*

**STATISTICS**

The area under a normal curve distribution is Equal to 100 almost equal to 1 equal to 1 equal to .5

*June 3, 2010 by Jake*

**physical**

What is the value of the normal force if the coefficient of kinetic friction is 0.22 and the kinetic frictional force is 40 newtons?

*November 17, 2014 by Anonymous*

**Statistics**

What is the difference between the population distribution, the distribution of the same, and the sampling distribution and what are the formulas to get the normal distribution of each?

*February 16, 2016 by Sara*

**Math**

The diameter of a normal front wheel on a bicycle is 24" Find the circumference and area of the front wheel?

*February 24, 2016 by Mary*

**physics**

The normal temperature of the human body is 37Celsius. a baby temperature is 98farenheit. DOes the baby a fever? Why?

*September 27, 2016 by k*

**English/Writing**

Which one of the following sentences is written in the active voice? 1 - Accidents are witnessed every day. 2 - However, few people think seriously of doing something about them. 3 - Accidents are considered by most people as unavoidable. 4 - But it is said that definite steps...

*February 19, 2008 by Sarah*

**mechanics**

Find the total kinetic energy of a 1500 g wheel, 700 mm in diameter, rolling across a level surface at 650 rpm. Assume that the wheel can be considered as a hoop. (b) For the wheel in part (a), calculate the torque required to decrease its rotational speed from 400 rpm to rest...

*May 14, 2013 by george*

**Literature **

The civil rights movement consisted of many events, such as freedom rides and sit-ins. Some of the events, such as fires and murders, were violent and unsettling. But the killing of the four little girls in Birmingham is considered one of the most significant events. Why do ...

*January 17, 2015 by Maddie*

**Chemistry**

A calorimetric determination of specific heat and enthalpy of solution was performed. How would each of the following procedural changes affect (higher than the correct value, lower than the correct value, or no change) the value of the specific heat of the metal determined in...

*October 15, 2012 by Amy*

**SOCIAL STUDIES**

To what extent did the French Revolution adhere to the principles of liberty, equality and fraternity? Not sure if this will answer your question, but these are my thoughts. The french started their little revolution a little while after the american revolution. basically, ...

*February 21, 2007 by Yuri*

**Hca 210**

How has the payment of health care providers envolved over time? What caused these changes ? select one of your classmates response. Do you agree or disagree wtih what they listed as one of the causes for change? Why or why not ? Please help!!!!

*August 21, 2008 by Anonymous*

**economics**

i need to find current articles online that are microeconomics articles that relate to: 1. changes in supply and demand 2. government role--price floors/ceilings, providing public goods, regulations 3. negative externalities

*October 21, 2009 by jake*

**Grammar**

Determin if the following sentences are: run-ons, fragments, or correct as is. 1. Because subtle changes can reveal future abnormalities. FRAGMENT 2. The neck is prone to injury, especially with repetitive motion and awkward positioning. CORRECT as is

*July 9, 2011 by Leslie-To:Writeacher*

**Grammar**

Determin if the following sentences are: run-ons, fragments, or correct as is. 1. Because subtle changes can reveal future abnormalities. FRAGMENT 2. The neck is prone to injury, especially with repetitive motion and awkward positioning. CORRECT as is

*July 9, 2011 by Leslie-To:Writeacher*

**Math**

Dieter deposists $ 9000 inoan account that pays 10%/a compunded quarterly, after 3 threes the inerest rate changes to 9%/a compounded semi-annually, calculate the value of his investments 2 years after this change

*January 11, 2012 by Annie*

**Physics**

Am i Correct? 2.0 cm*.044T*/.10 s= 0.88 V Each side of a square loop of wire measures 2.0 cm. A magnetic field of 0.044 T perpendicular to the loop changes to zero in 0.10 s. What average emf is induced in the coil during this change? A. 1.8 V B. 0.088 V C. 0.88 V <-- D. 0....

*June 10, 2014 by Me and I*

**King Arthur**

Why has the story of King Arthur endured for as long as it has? Why does the story appeal to such a wide variety of people? Would King Arthur and the Knights of the Round Table be considered heroes today?

*January 11, 2008 by Katie*

**math fair**

The game of dots is played by rolling a fair die and receiving $1 for each dot showing on the top face of the die. What cost should be set for each roll if the game is to be considered a fair game?

*October 21, 2009 by jason*

**Math**

Is there any one who knows if I am right? Do not solve, show possibilities of Descartes's rule of signs for roots. 4x^3-9x^2+6x+4=0 f(x)=4x^3-9x^2+6x=4 - + + one change =4(-x)^3-9(-x)^2+6(-x)+4 - + - + three changes Positive Negative Imaginary 2 1 0 1 2 0 3 possible roots

*April 4, 2008 by Larry*

**science**

An object accelerates(changes its speed) only if the forces acting on it in one direction are greater than the forces in the opposite direction, all of the following objects will accelaerate EXCEPT?

*September 28, 2008 by Anonymous*

**science**

An object accelerates (changes its speed) only if the forces acting on it in one direction are greater than the forces in the opposite direction, All of the following objects will accelerate EXCEPT?

*November 25, 2008 by Anonymous*

**chemistry**

A solution of Na2CO3 is added dropwise to a solution that contains 1.34×10−2M Fe^2+ and 1.33×10−2M Cd^2+ . What CO3^2- concentration of is need to initiate precipitation? Neglect any volume changes during the addition.

*March 14, 2009 by CHEMISTRY*

**7th grade Science**

Describe how the instantaneous speed of a car changes when the car is moving with constant speed , speeding up, and slowing down please answer as soon as possible

*March 28, 2010 by me*

**Web Design**

Please advise: While changes in code would be a good reason for a redesign of one's web page, I am stuck on equally important reasons for a redesign.

*May 15, 2010 by Jim*

**Chemistry**

when Fe(NO3)3 and KNCS were mixed they reacted together to establish an equilibrium with FE(NCS)+2. what are the changes in terms of quotient Q when the solutions were just mixed (no reaction), to the point where equilibrium is reached.

*October 31, 2010 by LP*

**investment and real estate analysis**

A 9-year bond has a yield of 6.0% and a duration of 7.982 years. If the market yield changes by 35 basis points, what is the percentage change in the bond’s price?

*March 5, 2011 by amanda*

**chemistry**

A piston is used to compress a gas from 1.0 atm to 3.5 atm. If ther volume changes from 1.5L to 0.75L, what is the final temperature, if it started at 300k? 1050K 700K 525K 300K

*November 25, 2011 by Mario*

**Desk Topping **

_____ are availible used to indicate changes that need to be made to text A . Proofreaders marks B . Correction marks C. Inserition sumbols D. Preview sumbols I got b .

*May 20, 2012 by ciara*

**public health**

What types of system changes will you implement or encourage others to implement based upon what you have learned about the importance of interdisciplinary collaboration on health outcomes?

*August 28, 2012 by nicole*

**chemistry**

Consider the equation: 2NO2(g) N2O4(g). Using ONLY the information given by the equation which of the following changes would increase the molar concentration at equilibrium of the product N2O4(g)?

*November 6, 2012 by olivia jo*

**Physics**

The gravitational force between two asteroids 1200 km apart is 8400 N. Find the following changes in gravity (do not write units) a) What is the force between them if the distance is 600 km?

*December 20, 2012 by Alex*

**algebra**

A car is stopped at a traffic light. The light changes to green and the driver starts to drive, accelerating at a rate of 4 m/s^2. Write an equation for the distance the car travels in time.

*March 3, 2013 by sam*

**science**

An object accelerates (changes its speed) only if the forces acting on it in one direction are greater than the forces in the opposite direction, All of the following objects will accelerate EXCEPT?

*December 6, 2013 by ty*

**PHYSICS**

racing car accelerates uniformly. changes with following average speeds 20m/s for 2sec ;40m/sec for 2s and 60m/s for 6sec . what is overall average speed of car

*June 14, 2014 by AYESHA*

**Chemistry **

Given the following exothermic, equilibrium reaction: 3 H2(g) + N2(g) <--> 2NH3(g) Using Le Chatelier's Principle, which of the following changes would shift the equilibrium toward more production of NH3?

*July 30, 2015 by Jimmy mendoz*

**Social Studies **

A. they would not make any changes in their behavior. B. They would demand more public goods and services. C. They would stop voting in elections. D. They would not re-elect the leaders. i think A.

*November 24, 2015 by Hannah*

**CHEMISTRY URGENT HELP**

How to draw line graph for showing changes in test tubes while showing that exhaled air contains more carbon dioxide than inhaled air

*November 28, 2015 by mark*

**physiology**

Factors that increase the secretion of antidiuretic hormone include all of the following except: a)increased osmolarity of the ECF b) decreased renal blood flow c) increased concentration of potassium ions in the ICF d) increased concentration of sodium ions in the ECF e) ...

*December 11, 2006 by pbear*

**Physics**

The amount of heat per second conducted from the blood capillaries beneath the skin to the surface is 250 J/s. The energy is transferred a distance of 1.7 x 10-3 m through a body whose surface area is 1.8 m2. Assuming that the thermal conductivity is that of body fat, ...

*April 30, 2013 by Tim*

**English**

1. She poured water all over my painting and ruined it. (Can we use 'spoiled' instead of 'ruined'?) 2. boil (water changes into moist) 2-2. boil (water changes into moisture) (Which definition is right?) 3. He doesn't care about his family. He is not worried about his family. ...

*June 24, 2009 by John*

**chemistry**

Determine the molarity of in an aqueous solution at equilibrium with air at normal atmospheric pressure. The volume percent of in air is 20.65 Under an pressure of 1.00 , 28.31 of dissolves in 1.00 at 25.

*February 21, 2010 by sab*

**Essentials of statistics**

A populations of scores forms a normal distribution with a mean of 40 and a standard deviation of 12 what is the probability of selecting a sample of n=9 scores with a mean less than m=34

*July 31, 2010 by Anonymous*

**statistics**

If random samples, each with n = 36 scores, are selected from a normal population with m = 80 and s = 18, how much difference, on average, should there be between a sample mean and the population mean?

*October 19, 2010 by Anonymous*

**Chemistry**

The normal boiling point of benzene is 80 degree C and its heat of vaporizations is 30.8 kj/mol. What is its boiling point at the top of Pikes Peak where P=260 mmHg?

*April 27, 2011 by Tyler*

**grammar**

The patient is alert and oriented and has normal mental status exam. Question: List verb/verbs I know there are two - Answer: is Answer: mental

*May 8, 2011 by Leslie*

**statistics**

a. A random sample of 25 was drawn from a normal distribution with a standard deviation of 5. The sample mean is 80. Determine the 95% confidence interval estimate of the population mean.

*August 15, 2011 by Sally*

**statistics**

In a normal distribution with the mean being 500 and the standard deviation being 100, what raw score separates the top 40% of a distribution from the rest?

*July 29, 2012 by Jessica *

**statistics**

In a normal distribution with the mean being 500 and the standard deviation being 100, what raw score separates the top 40% of a distribution from the rest?

*July 29, 2012 by Jessica *

**stats**

Given a normal distribution with µ = 80, σ= 5, and given a sample size of n = 25, describe the following characteristics of the sampling distribution: 1. Central tendency 2. Variability

*October 23, 2012 by Komal*

**statistics**

if we are testing for the difference between two populations, it is assumed that the two populations are approximately normal and have equal variances, true or false

*April 28, 2014 by marsha*

**statistics**

The final mark in QTQ100T has a normal distribution with an average of 60% and a variance of 100. If we draw a sample of 4 students, the probability that the average mark is more than 56% is

*September 4, 2014 by Anonymous*

**statistic**

in 2000 the average charge of tax preparation was $95. assuming a normal distribution and a standard deviation of $10. What proportion of tax preparation fees were more than $95 ?

*December 26, 2014 by tolendoy*

**Statistics**

In 2000,the average charge of tax preparation was $95.Assuming a normal distibution and standard deviation of $10.What proportion of tax preparation fees were more than $95?

*January 3, 2015 by Leslie Meagan*

**Statistics**

in 2000, the averages change of tax preparation was $95. Assuming a normal distribution and a standard deviation of $10. What proportion of tax preparation fees were more than $95.

*March 15, 2015 by Leo Elvis*

**Physics**

A mass slides down a smooth incline, the normal force is exactly 1/3 the weight of the mass. Find the angle of the incline, relative to the horizontal.

*May 26, 2015 by Tara*

**Math**

If an adult male is told that his height is within two standard deviation of the means of the normal distribution of height of adult males, what can we assume?

*November 22, 2015 by Anonymous*

**Calculus**

An object moves from left to right along a parabolic shaped path y=(1/4)x^2. At the point (-2,1) the speed is 1. What normal acceleration is the object experiencing at that point?

*February 16, 2016 by Tony*

**statistics**

Let A and B be constants such that A < B. Let z be a standard normal random variable. For what values of A does P(A<z<B)approximately equal P(z<B)? Pick ALL that apply. a. A = -9 b. A = -26 c. A = 0 d. A = 9 e. None of these are correct. This is how I'm reasoning ...

*May 10, 2008 by Jane*

**Chemistry**

Given the following data, determine the heat of vaporization and normal boiling point of ammonia Temp (K): 200 210 220 230 235 Pressure (respectively)(torr): 65.3 134.3 255.7 456.0 597.0

*April 25, 2010 by Timothy Boo*

**psychology**

Aresearcher is studying people of normal weight and obese individuals.She wants to know how the time of day affects hunger feelings in these two groups. when, during the experiment, the researcher looks at her watch, she has introduced what into the research study?

*September 12, 2012 by SHERRY*

**Physics**

Could a simple machine such as a lever, a pulley system or a hydraulic jack be considered a heat engine? Explain your answer. I feel that its the hydraulic jack because if friction is created, heat is also created. I'm not sure though.

*January 2, 2011 by Bunny*

**Physics**

Could a simple machine such as a lever, a pulley system or a hydraulic jack be considered a heat engine? Explain your answer. I feel that its the hydraulic jack because if friction is created, heat is also created. I'm not sure though.

*January 2, 2011 by Abida*