Sunday

April 19, 2015

April 19, 2015

Total # Posts: 19,686

**statistics**

From your data, he did equally well on both exams.
*October 8, 2014*

**statistics**

Please only post your questions once. Repeating posts will not get a quicker response. In addition, it wastes our time looking over reposts that have already been answered in another post. Thank you. Second equation has wrong SD.
*October 8, 2014*

**MATH (STATS)**

A) SEm = SD/√n B) 95% = mean ± 1.96 SEm C) Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability (.005) and its Z score. Substitute that for the 1.96 in B equation.
*October 8, 2014*

**Algebra**

What problem?
*October 8, 2014*

**statistics**

22 is two SD below the mean, in other words, Z = -2. Z = (score-mean)/SD Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability related to the Z score and distance from the mean. ...
*October 8, 2014*

**Statistics-Help please??**

Was this the equation they gave you? Z = (score-mean)/SD Just insert values and solve for Z.
*October 8, 2014*

**statistics**

What is your question?
*October 8, 2014*

**Sociology (stats) help**

Continue calculations to find Z. Z = (score-mean)/SD Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the least proportion/probability for each Z score. Either-or probabilities are found by adding the ...
*October 8, 2014*

**Psychological Statistics**

Z = (score-mean)/SD Insert you data to calculate the mean.
*October 8, 2014*

**General Psychology**

Nicotine
*October 8, 2014*

**psychology**

http://drdavespsychologypage.homestead.com/Decision_Trap.pdf
*October 7, 2014*

**psychology**

Please only post your questions once. Repeating posts will not get a quicker response. In addition, it wastes our time looking over reposts that have already been answered in another post. Thank you.
*October 7, 2014*

**Statistics**

Please only post your questions once. Repeating posts will not get a quicker response. In addition, it wastes our time looking over reposts that have already been answered in another post. Thank you. See later post.
*October 7, 2014*

**statistics**

Z = (score-mean)/SD Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability related to the Z score.
*October 7, 2014*

**Science**

I would agree.
*October 7, 2014*

**Satistics**

Z = (score-mean)/SD Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability (.10) and its Z score. Insert all data in above equation.
*October 7, 2014*

**statistics**

Z = (score-mean)/SD Compare the two Z scores.
*October 7, 2014*

**Stats**

Probability cannot be negative or greater than 1.
*October 7, 2014*

**math**

What are your choices?
*October 7, 2014*

**science**

https://www.google.com/search?client=safari&rls=en&q=speed+of+a+falling+object&ie=UTF-8&oe=UTF-8&gws_rd=ssl
*October 4, 2014*

**Algebra**

x^2 + 4x - 10 = 0 Ten factors into 2 and 5. If you had a typo: x^2 + 3x - 10 = 0 This factors into (x+5)(x-2) = 0 Do you have a typo?
*October 4, 2014*

**statistics**

.01/3 = ?
*October 4, 2014*

**statistics**

Where? Grade book?
*October 4, 2014*

**Math**

Online, “*” is used to indicate multiplication to avoid confusion with “x” as an unknown. Yes, -7 * -7 * -7 * -7 * -7
*October 4, 2014*

**math**

1000 - 310 - 180 = B
*October 4, 2014*

**Statistic**

What figure? What is your question?
*October 3, 2014*

**Math**

x - .32x = 120 Solve for x.
*October 3, 2014*

**Math**

Horizontal axis (X axis, abscissa) is the values of the scores, while the vertical axis (Y axis, ordinate) would indicate the frequency of each score. I hope this helps.
*October 2, 2014*

**Biology**

https://www.google.com/search?client=safari&rls=en&q=protein+synthesis+importance&ie=UTF-8&oe=UTF-8&gws_rd=ssl In the future, you can find the information you desire more quickly, if you use appropriate key words to do your own search. Also see http://hanlib.sou.edu/searchtools/.
*October 2, 2014*

**Biology**

https://www.google.com/search?client=safari&rls=en&q=product+of+the+oxidation+of+methanol&ie=UTF-8&oe=UTF-8&gws_rd=ssl In the future, you can find the information you desire more quickly, if you use appropriate key words to do your own search. Also see http://hanlib.sou.edu/...
*October 2, 2014*

**statistics**

Unbiased estimators can be generalized more accurately.
*October 2, 2014*

**writing,essay**

How do you know who you are without knowledge of your past? How do you define yourself? Think about it.
*October 2, 2014*

**Physics needs help**

Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question.
*October 2, 2014*

**math**

120/5 units by 75/5 units
*October 1, 2014*

**math**

Any negative number squared is positive. (-x)^4 = (-x)^2 * (-x)^2 If a is -(x^4), then it is negative. The only other negative I see is e.
*October 1, 2014*

**Biology**

Please only post your questions once. Repeating posts will not get a quicker response. In addition, it wastes our time looking over reposts that have already been answered in another post. Thank you. https://www.google.com/search?client=safari&rls=en&q=factors+affecting+...
*October 1, 2014*

**Stat**

99% = mean ± Z*SEm SEm = SD/√n Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability (.005) and its Z score. Insert Z score with other data in the first equation.
*October 1, 2014*

**Statistics**

From the way you posted, I cannot understand your data. However…. Z = (score-mean)/SD Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability for each Z score.
*October 1, 2014*

**Health**

Agree, however, it does effect the adrenal glands via ACTH, Adrenocorticotropic hormone.
*October 1, 2014*

**statistics**

Then you have a bimodal distribution; use both modes.
*October 1, 2014*

**Science**

https://www.google.com/search?client=safari&rls=en&q=science+indicators&ie=UTF-8&oe=UTF-8&gws_rd=ssl
*October 1, 2014*

**Math**

Need to convert meters to feet. 4m = 13.12 feet She has two rolls. 2 * 13.12 = 26.24 She needs the amount below to connect the speakers. 2*2 + 2*11 = ? Convert discrepancy from feet to cm. 1 foot = 30.48 cm
*October 1, 2014*

**Science quick question**

Please only post your questions once. Repeating posts will not get a quicker response. In addition, it wastes our time looking over reposts that have already been answered in another post. Thank you. See other post.
*September 30, 2014*

**Math**

0 is the X value (abscissa, horizontal axis) and -2 is the Y value (ordinate, vertical axis).
*September 30, 2014*

**Math**

(180º-116º)/2 = ?
*September 30, 2014*

**science**

1 Knot = .5144 m/sec
*September 30, 2014*

**Stat**

Right.
*September 30, 2014*

**Stat**

Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability (.005) and its Z score. 99% = mean ± Z SEm SEm = SD/√n
*September 30, 2014*

**Communication**

1-2. Agree 3. Disagree. Look up definition of prototype. 4. Agree 5. DK for sure, but would go with your answer. 6. Would go more with A 7. Disagree, when you marry someone are you biologically related? 8. Don't avoid conflicts. This would lead to long-term unexpressed ...
*September 30, 2014*

**Human and social biology**

We do not do your homework for you. Although it might take more effort to do the work on your own, you will profit more from your effort. We will be happy to evaluate your work though.
*September 29, 2014*

**computers**

We do not do your homework for you. Although it might take more effort to do the work on your own, you will profit more from your effort. We will be happy to evaluate your work though. However, to start you out, have you ever typed a paper on a manual/electric typewriter as ...
*September 29, 2014*

**MATH HELP**

Is there a 5 in the tens digit space?
*September 29, 2014*

**Algebra**

let x = # marbles in bag. 3x + 2 = 29 Solve for x.
*September 29, 2014*

**Math**

42 = 8x - 14 Add 14 to both sides, then divide both sides by 8.
*September 29, 2014*

**math**

lack sufficient data.
*September 29, 2014*

**Logic?**

Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question. Correct.
*September 29, 2014*

**Algebra 1**

From your data: 1/2 + 1/4 = 3/4 3/4x = 16 Multiply both sides by 4/3.
*September 29, 2014*

**statistics**

Z = (score-mean)/SD Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability (.07) and its Z score. Insert Z score in equation above to find raw score.
*September 29, 2014*

**discrete distribution**

No data given. Find the mean first = sum of scores/number of scores Subtract each of the scores from the mean and square each difference. Find the sum of these squares. Divide that by the number of scores to get variance. Standard deviation = square root of variance
*September 28, 2014*

**algebra**

Insufficient data.
*September 28, 2014*

**public speaking**

No choices listed.
*September 28, 2014*

**statistics (Bill)**

First, if you have a question, it is much better to put it in as a separate post in <Post a New Question> rather than attaching it to a previous question, where it is more likely to be overlooked. I would want the one with the lowest variability. SD is a measure of ...
*September 28, 2014*

**statistics (Tom)**

What is your question?
*September 28, 2014*

**statistics**

Z = (score-mean)/SD Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability (.10) and its Z score. Insert Z score and other relevant data in equation above to find the raw score.
*September 28, 2014*

**stats**

We do not do your homework for you. Although it might take more effort to do the work on your own, you will profit more from your effort. We will be happy to evaluate your work though. However, I will start for you. a) 15/total cubes = ? b) (total cubes-15)/total cubes = ? ...
*September 28, 2014*

**stat**

No, it changes the odds of picking a spade. If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. 13/52 * (13-1)/(52-1) = ?
*September 28, 2014*

**Physics needs help**

Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question.
*September 28, 2014*

**Math (money)**

(1 - 1/6)x - 9 = 16 Solve for x.
*September 28, 2014*

**science 2 quick questions**

You need to search through the sources. 1. Here one of the sites you said didn't help. Look through it carefully. http://www.merckmanuals.com/home/infections/viral_infections/overview_of_viral_infections.html 2. Look through these sources closely. https://www.google.com/...
*September 28, 2014*

**stat**

Z = (score-mean)/SD Need mean and standard deviation for ALL CITIES to find Z scores.
*September 28, 2014*

**statistics**

Even or Even = 3/6 Either-or probabilities are found by adding the individual probabilities. <5 = P(1, 2, 3, or 4) Die only has values 1-6.
*September 28, 2014*

**To ANY SCIENCE HELPER**

https://www.google.com/search?client=safari&rls=en&q=methods+of+viral+infection&ie=UTF-8&oe=UTF-8&gws_rd=ssl https://www.google.com/search?client=safari&rls=en&q=virus+helpful+to+host&ie=UTF-8&oe=UTF-8&gws_rd=ssl In the future, you can find the information you desire more ...
*September 28, 2014*

**Biology**

Please only post your questions once. Repeating posts will not get a quicker response. In addition, it wastes our time looking over reposts that have already been answered in another post. Thank you. See later post.
*September 27, 2014*

**social statistics**

Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability (.025) and its Z score. 95% = mean ± Z SEm SEm = SD/√n
*September 27, 2014*

**Psychology**

I will give some problems I think may be happening and let you relate them to critical thinking. How were the 100 students selected? Would the method of selection allow you to generalize to students as a whole? What level of significance was used? .01? .05? .10? Was Penny'...
*September 27, 2014*

**Statistics**

Z = (score-mean)/SD Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability (±.40) and the corresponding Z scores. Insert in above equation to get the raw scores.
*September 27, 2014*

**statistics**

Z = (score-mean)/SD Which one has the highest Z score?
*September 27, 2014*

**Science**

Since it is called "carbon dating," you can automatically eliminate A and B. Whenever you don't know the right answer in multiple choice, you can get closer to the right answer by eliminating those that you know are wrong. The first C, carbon 14.
*September 26, 2014*

**Stats**

No, it would be mean ± 2SD.
*September 26, 2014*

**Algebra 2**

Online "^" is used to indicate and exponent, e.g., x^2 = x squared. Our steps in what? What is your question? Repeat with correct symbols.
*September 26, 2014*

**Biology question plz**

There is no D given.
*September 26, 2014*

**math**

Without the goats, total = 38. H = G + D D = G + 5 Substitute G+5 for D H = G + G + 5 = 2G + 5 H + G + D = 38 Substitute G+5 for D and 2G+5 for H. 2G+5 + G + G+5 = 38 Combine terms to solve for G, then D.
*September 25, 2014*

**statistics**

http://drdavespsychologypage.homestead.com/Two___Two_____four.pdf
*September 25, 2014*

**Algebra 2**

Right
*September 25, 2014*

**Math**

S^2 = 27 Solve for S.
*September 25, 2014*

**In English?**

Please translate.
*September 25, 2014*

**maths**

100(1 - .40) = ?
*September 24, 2014*

**Math**

Please only post your questions once. Repeating posts will not get a quicker response. In addition, it wastes our time looking over reposts that have already been answered in another post. Thank you. See previous post.
*September 24, 2014*

**career math**

I assume you are talking about the bottom of each roll. Area = π * r^2 area = 3.14 * 121 = ?
*September 24, 2014*

**algebra. help!**

True 16 = 4x - 4 No, add 4 to both sides, then divide by 4.
*September 24, 2014*

**Science**

Right, A, B and C are all parts of atoms.
*September 24, 2014*

**math**

Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question. 787,878 878,787
*September 24, 2014*

**algebra**

.50 + .10t = 2.00 Solve for t.
*September 24, 2014*

**Statistics 7**

We do not have access to web file.
*September 24, 2014*

**Statistics 2**

Z = (score-mean)/SEm SEm = SD/√n Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability of the Z score.
*September 24, 2014*

**science**

Since this is not my area of expertise, I searched Google under the key words "nucleon structure functions" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=nucleon+structure+functions&ie=UTF-8&oe=UTF-8&gws_rd=ssl In the future, you...
*September 24, 2014*

**Math**

V= π * r^2 * h 339.3 = 3.14 * r^2 * 3 3.14 * 3 = 9.42 Divide both sides by 9.42, then find square root.
*September 24, 2014*

**math**

See previous post.
*September 24, 2014*

**math**

x/1.5 = 75/50 Solve for x.
*September 24, 2014*

**algebra**

mean = ∑x/n 90 = (92 + 92 + 83 + x)/4 Solve for x.
*September 23, 2014*