Tuesday
April 21, 2015

Posts by Jen


Total # Posts: 3,329

Statistics
In terms of the mean and standard deviation: -What does it mean to say that a particular value of x has a standard score of +2.1? -What does it mean to say that a particular value of x has a z-score of -2.4?
October 17, 2011

Stats
For a particular sample of 63 scores on a psychology exam, the following results were obtained. First quartile = 57 Third quartile = 87 Standard deviation = 9 Range = 51 Mean = 72 Median = 72 Mode = 98 Midrange = 57 Answer each of the following: I. What score was earned by ...
October 17, 2011

math
A 1200·kg elevator is attached to a cable whose tension is 11900·N. What is the magnitude of the elevator's acceleration? ____ m/s
October 16, 2011

chemistry
what is the typical relationship between the rate of reaction and the value of the equilibrium constant? A) it is a direct porportionality B) it is an exponential proportionality C) it is an inverse proportionality D) there is no relationship between these factors
October 14, 2011

math
A ball is thrown from the edge of a cliff with an initial velocity of 60·m/s upward. Answer the following questions using + (upward) and - (downward) to indicate the direction of the velocity. Ignore air resistance and assume the ball does not hit the ground during the ...
October 13, 2011

physics
The hang-time of a basketball player who jumps a vertical distance of 2 feet (0.61 m) is about 0.70 second. What will be the hang-time if the player reaches the same height while jumping 3 feet (0.91 m) horizontally?
October 13, 2011

Stats
A set of 50 data values has a mean of 15 and a variance of 25. Find the standard score of a data value = 20. I'm not sure how to do this....please help
October 12, 2011

Help plz!! Math....
Start with x = 100 and add four x values to make a sample of five data such that the standard deviation of these data equals 0
October 12, 2011

Help plz!! Math....
A set of 50 data values has a mean of 15 and a variance of 25. Find the standard score of a data value = 20
October 12, 2011

Physics
A 4.3-kg block slides down an inclined plane that makes an angle of 26° with the horizontal. Starting from rest, the block slides a distance of 2.1 m in 5.1 s. Find the coefficient of kinetic friction between the block and plane.
October 12, 2011

sentence
I show my appreciation to my parents for all they do for me :)
October 12, 2011

4th grade math
add all of them and divide by how many sets there are which is 5.... 92 + 96 + 99 + 103 + 88 = 478/5 = 95.6
October 12, 2011

Statistics
Start with x = 100 and add four x values to make a sample of five data such that the standard deviation of these data equals 0
October 12, 2011

Statistics
A set of 50 data values has a mean of 15 and a variance of 25. Find the standard score of a data value = 20
October 12, 2011

Can someone help me please? MATH
hmmmmm i guess it is....thank u :)
October 11, 2011

Can someone help me please? MATH
Identify the sampling technique used to obtain this sample: Each person boarding a plane is asked to flip a coin; those showing “tails” have their luggage searched.
October 11, 2011

Math
interesting....thank you for your example, it definitely helped me :)
October 11, 2011

Math
In your own line of work, give one example of a discrete and one example of a continuous random variable, and describe why each is continuous or discrete.
October 11, 2011

Math
Identify the sampling technique used to obtain this sample: Each person boarding a plane is asked to flip a coin; those showing “tails” have their luggage searched.
October 11, 2011

Chemistry
I have no idea where to even start with this problem on my pre-lab! For part of the experiment, you will need to prepare 100 mL of 0.025 M CH3CO2H, starting from commercial "glacial" acetic acid, which has a concentration of 17.4 M. This is best done by making two ...
October 10, 2011

Math-Stats
An insecticide company exposes 10,000 cockroaches to its newest product, and exposes another 10,000 to their previous formula. The researchers use videotape to count how many cockroaches are still alive, and how many appear to be in distress, at 10 second intervals. When the ...
October 10, 2011

Math
actually i do check and actually that is another problem i posted, not this damn problem!
October 10, 2011

Math
Construct a grouped frequency distribution for the following 28 scores using a class width of 4: 64 63 58 46 52 62 47 49 56 47 43 41 45 51 60 62 51 61 50 55 56 53 54 58 48 48 58 46 How do I do this?
October 10, 2011

Math
A candidate for a political office claims that he will win the election. A poll is conducted, and 35 of 150 voters indicate that they will vote for the candidate, 100 voters indicate that they will vote for his opponent, and 15 voters are undecided. a. What is the population ...
October 10, 2011

Chemistry
Regular-strength chlorine bleach is a 5.25% solution of NaClO. how many milliliters of 0.02005 M sodium thiosulfate will be required to reach the equivalence point in the titration of a 1.000ml sample of Bleach by reacting the ClO- ions with I, then titrating the resulting I2 ...
October 10, 2011

Math...PLEASE HELP!!!!
A candidate for a political office claims that he will win the election. A poll is conducted, and 35 of 150 voters indicate that they will vote for the candidate, 100 voters indicate that they will vote for his opponent, and 15 voters are undecided. a. What is the population ...
October 9, 2011

Math
how in the world do i do this??
October 9, 2011

Math
Construct a grouped frequency distribution for the following 28 scores using a class width of 4: 64 63 58 46 52 62 47 49 56 47 43 41 45 51 60 62 51 61 50 55 56 53 54 58 48 48 58 46
October 9, 2011

Math
A candidate for a political office claims that he will win the election. A poll is conducted, and 35 of 150 voters indicate that they will vote for the candidate, 100 voters indicate that they will vote for his opponent, and 15 voters are undecided. a. What is the population ...
October 9, 2011

Math-Ms. Sue or Bob
Can either one of you help me with the math problems I asked? I really need help and do not understand how I would calculate the sample statistic and parameter population....
October 9, 2011

MATH
Construct a frequency distribution table to organize the following set of data: 16 23 24 23 24 20 15 16 21 15 16 19 17 15 23 16 18 19 20 19
October 9, 2011

MATH
I get -3 for all of those??
October 9, 2011

MATH
Construct a grouped frequency distribution for the following 28 scores using a class width of 4: 64 63 58 46 52 62 47 49 56 47 43 41 45 51 60 62 51 61 50 55 56 53 54 58 48 48 58 46
October 9, 2011

MATH
would this be right? the population parameter of interest is 45%? the value of the sample statistic is 50%??
October 9, 2011

MATH
I am still so confused....the population parameter of interest isn't 150? The value of the sample statistic isn't 100? I'm sorry I am so lost with Statistics...one of the hardest classes I've dealt with yet :( Please help me...
October 9, 2011

MATH
A candidate for a political office claims that he will win the election. A poll is conducted, and 35 of 150 voters indicate that they will vote for the candidate, 100 voters indicate that they will vote for his opponent, and 15 voters are undecided. a. What is the population ...
October 9, 2011

algebra 2
i need help with these questions simplify √4x^2/y^3 √2x^4/72 √18+√32 √31(√3+√27)
October 9, 2011

Math....please help
A candidate for a political office claims that he will win the election. A poll is conducted, and 35 of 150 voters indicate that they will vote for the candidate, 100 voters indicate that they will vote for his opponent, and 15 voters are undecided. a. What is the population ...
October 8, 2011

Statistics-confused
A candidate for a political office claims that he will win the election. A poll is conducted, and 35 of 150 voters indicate that they will vote for the candidate, 100 voters indicate that they will vote for his opponent, and 15 voters are undecided. a. What is the population ...
October 8, 2011

math
$50 + $15 + $3 = $68
October 8, 2011

Statistics-confused
A candidate for a political office claims that he will win the election. A poll is conducted, and 35 of 150 voters indicate that they will vote for the candidate, 100 voters indicate that they will vote for his opponent, and 15 voters are undecided. a. What is the population ...
October 8, 2011

Statistics
I think it's nominal correct?
October 8, 2011

Statistics
Classify the following variable as nominal, ordinal, discrete, or continuous and state why it is such a variable: number of US Senators
October 8, 2011

Statistics
Thank you.
October 8, 2011

Statistics
Yes....so it would be observational correct?
October 8, 2011

Statistics
Describe whether the following study would most likely be “observational” or “experimental”, and why it would be so. * Mystery shoppers monitor the preferences at a shopping mall
October 8, 2011

nursing
What are some processes for applying nurse-sensitive performance reviews and quality indicators? How can these processes be best implemented? What is their effect on nursing research and practice?
October 5, 2011

english
can you help me classify this sentence: The two blue birds trill merrily each morning. What would (each morning) be?
October 2, 2011

english
Can you help me with this sentence The two blue birds trill merrily each morning. article adj.-the adj-two adj-blue noun-birds verb-trill adv-merrily prep-each object of prep-morning is this right?
October 2, 2011

english
prep-on article adj- the object of the prep-swings adv.-during adv- recess
October 2, 2011

english
please help classify each word in this sentence: Several children played on the swings during recess.
October 2, 2011

nursing
How would you prevent misconduct in any reserach study
September 29, 2011

math
20 cm
September 28, 2011

accounting
How do write this as a journal entry transaction? Alex transferred $17,000 from his personal bank account to the corporation in exchange for capital stock.
September 28, 2011

Physics
I know a steady force produces a steadily increasing velocity and a constant acceleration. But what happens when you increase the force by doubling or tripling it? I think the acceleration would follow force changes but what about velocity?
September 25, 2011

math
x^(2ln(x)-1) +e^1/9=(1+e^1/9) *x^(ln9x)-0.5)
September 25, 2011

statistics
12.27 A study has been carried out to compare the United Way contributions made by clerical workers from three local corporations. A sample of clerical workers has been randomly selected from each firm, and the dollar amounts of their contributions are as follows. (Use data ...
September 24, 2011

Physics
A car accelerates from 0 to 60 miles per hour in 6.5 seconds. Determine the distance traveled in this time and the acceleration. Assume constant acceleration.
September 22, 2011

Science
If a block is 12cm wide, 7cm long and 9 cm then how much of the block will be below the surfaceof the water if the block weights 500 grams?
September 20, 2011

math
six cars are parked in front of a car dealership. If you are looking at the cars from the front. the red car is parked in front of the green car. the black car is between the green and the yellow car. The blue car is parked on the right side of the red car. the orange car is ...
September 20, 2011

Math
For the limit lim x → 3 (x3 − 2x + 5) = 26 illustrate the definition by finding the largest possible values of δ that correspond to ε = 0.2 and ε = 0.1. (Round your answers to four decimal places.)
September 19, 2011

Physics
Now would that also be the same visual for an observer? Or would it seem to them like the it's curving and fall on the rider?
September 17, 2011

Physics
I have a projectile motion question. If let's say a cannon which was placed on a moving cart with negligible friction projects a cannonball straight up in the air where will it fall? Would it be behind the cannon, on the rider or fall straight down back into the cannon? ...
September 17, 2011

english
identify the details in the story that contribute to a sense of reality and explain how these details make the story plausible.
September 14, 2011

english
score/ score presents a fictional world, regulated by computers and other machines in which humans are noticeably absent. Though the main characters are actually two computers that converse, the story contains several details that create verismilitude. Because computers are ...
September 14, 2011

Literacy
Please check my work. Thank you. 1. Which of the following is the most direct tool to find books owned by a library you are visiting? A. W i k i p e d i a B. Search engines like G o o g l e or Y a h o o C. Catalog D. Periodical database Answer #1 is B 2. Which of the following...
September 12, 2011

Literacy
Thank you very much.
September 12, 2011

Literacy
Question # 1. The web page showing 1,398,414 building permits for 2007, but none of the choice showing that figure.
September 12, 2011

Literacy
Please check my work. Thank you. 1. According to FedStats, what was the number of building permit in 2007? A. 61,617 B. 54,059 C. 496,686 D. 1,500,173 Answer #1 is D. 2. Which of the following is a primary source? A. Newspaper article published in the 1980s that reports on an ...
September 12, 2011

math (please help me)
How do I solve for T? PI(67.2/2)^2*T*13.6g/cm^3= 5lb*435.6g
September 11, 2011

Chemistry
In Millikan's experiment, the charge on each drop of oil was measured in coulombs. Imagine the same experiment, but with charges measured in a fictitious unit called a zeet (). Drop Charge () A 1.38×10−14 B 3.22×10−14 C 3.68×10−14 D 4.14...
September 9, 2011

College Math
5x3=15 15/52 4/52= 1/13 2/52= 1/26
September 9, 2011

Literacy
I’m confused. Are you saying that none of the choice is correct?
September 7, 2011

Literacy
I will go with “B” and get back to you when I get back the results. Thank you very much.
September 7, 2011

Literacy
Why the question mark on # 5?
September 7, 2011

Literacy
Please check my work, thank you. Question 1 – 4: Access the Library of Congress library Catalog. Then, find the information to answer the question. 1. What year was the oldest copy of Ralph Ellison’s Going to the Territory published? A. 1952 B. 1986 C. 1987 D. 1995 ...
September 7, 2011

Math
The measure of the supplement of an angle is 3 less than four times the measure ofthe comloment of the same angle
September 6, 2011

AP chem
Is it 84.8%?
September 6, 2011

AP chem
A 1.25-g sample contains some of the very reactive compound Al(C6H5)3. On treating the compound with aqueous HCl, 0.951 g of C6H6 is obtained. Al(C6H5)3(s) + 3HCl(aq) --> AlCl3(aq) + 3C6H6(l) Assuming that Al(C6H5)3 was converted completely to products, what is the weight ...
September 6, 2011

AP Chemistry
The formulas for ethanol and ammonium nitrate are C2H5OH and NH4NO3. In what respects are these formulas and compounds different? Am I supposed to say that there are different elements that make up the compounds?
September 5, 2011

algebra
The equation y=-1777x+27153 can be used to predict the number y of gun deaths in the united states x years after 2000, that is, x=0 corresponds to 2000 x=3 corresponds to 2003, x=4 corresponds to 2004, and so on. Predict the number of deaths in 2004 and 2009. In what year will...
August 31, 2011

English
Sorry Ms Sue, I would like to know if success comes form work hard or smart work? I think the statement is not actually true Sucess comes form smart work.
August 31, 2011

English
Success comes from hard work. (I will say “NO” to the statement above) Success comes from smart work.
August 31, 2011

Literacy 4
Thank u Ms Sue
August 26, 2011

Literacy 4
Please check my work. Thank you. 1. Government documents in a library are classified according to which of the following schemes? A. Superintendent of Documents B. Government Printing Office C. Dewe Decimal D. Library Of Congress Answer #1 is A 2. You're using the ...
August 26, 2011

Literacy
Thank u.
August 24, 2011

Literacy
Miss Sue please review Literacy question #2, on Aug 23, 2011 @ 6:04pm. I believed I made a mistake, the correct answer is C not B. 2. The Altas of World Religion is an example of which of the following reference sources? A. Historical atlas B. Subject-specific atlas C. General...
August 24, 2011

Literacy 3
Answer for # 8 is A Thank u Mis Sue.
August 23, 2011

Literacy 3
Please Check my work. Thank you. 6. To avoid plagiarism in you written research paper, you must provide a citation for which of the following? A. The United Nations ruling on the Soviet-bloc countries B. The date the berlin Wall was pulled down by a crowd in Germany C. ...
August 23, 2011

Literacy 2
Thank u Ms Sue. 22. Which of the following would be the best way to get to a list of encyclopedias that are available on the Web? A. Search the library catalog. B. Search a periodical database. C. Visit the Internet Public Library. D. Look at the Library of Congress Web site. ...
August 23, 2011

Literacy 2
Please check my work. Thank YOU! 10. Which article would be the most appropriate source to include in a bibliography for a research paper on stem cells? A. Lemonick, Michael D., David bjerklie, Andrew Goldstein. “keeper of the stem Cells. “Time 27 Aug 2001: 57 B. ...
August 23, 2011

Literacy
Thank you Ms Sue.
August 23, 2011

Literacy
Please check my work. Thank YOU! 1. Journals differ from magazines in that they’re A. Printed with volume numbers. B. Published only periodically. C. Available by subscription. D. Sources of academic research not intend for the general publish. ANSWER #1 is D 2. The Atlas...
August 23, 2011

trigonometry
A television antenna is on the roof of a building, the angle of elevation of the top and the button of the antenna are 51 degrees and 42 degrees respectively.How tall is the antenna?
August 23, 2011

trigonometry
yes it is the lenght of the shadow.that is the problem that my professor gave me.
August 23, 2011

trigonometry
how tall is a tree if it costs a shadow 59 degrees 24 minutes 41 inches on the ground 40 meter?
August 23, 2011

statistics
5.20 There are 100 males and 120 females in the graduating class of a local high school. Thirty-five percent of the graduating males are on school sports teams, as are 30% of the graduating females. A local businessperson is going to donate $1000 to the favorite charity of a ...
August 21, 2011

trig
how do you find all the values of theta from 0 degrees through 360 degrees for which sin theta equals 0
August 18, 2011

Math
Hi. So we had a long test with this question.. I was wondering how to solve it? Coz our teacher didn't discuss the answers.. and most probably we'll have the same type of question during midterms.. Find the Solution Set 9/|2-5x| - 4/y^2-3y = 5 2/|2-5x| + 2/ 3(y^2-3y...
August 17, 2011

statistics
1. In a Gallup poll of 2,040 adults, 956 said that second-hand smoke is very harmful. What is the percentage of adults who said second-hand smoke is very harmful?
August 7, 2011

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