Monday
December 22, 2014

Posts by PsyDAG


Total # Posts: 18,873

Statistics (?)
What is question 19? You cannot use copy and paste here.
February 10, 2014

Statistics in Psychology
A correlation coefficient cannot exceed ± 1. From your data, neither would be useful.
February 10, 2014

Statistics in 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. See your previous post.
February 10, 2014

statistics
Z = (score-mean)/SD Solve for Z.
February 10, 2014

Statistics
Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question. Z = (score-mean)/SD Find table in the back of your statistics text labeled something like "areas under normal distribution" to find...
February 10, 2014

statistics
Z = (score-mean)/SD
February 10, 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.
February 10, 2014

Statistics
a. 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 b. Z = (score-mean)/SD...
February 10, 2014

algebra 2
Since there is a plus sign between the two parentheses, add the like terms. 2b^2 + b^2 = 3b^2 -b + 4b = 3b 3b^2 + 3b - 4
February 10, 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.
February 10, 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.
February 10, 2014

STATISTICS
Find a relatively large group of students, get their IQ and grade average, and do a correlation coefficient. To know the value of either variable, use a scatter diagram to find the other.
February 10, 2014

Math (?)
What is your question?
February 9, 2014

Math
(4+x)/(3+4+7+10+x) = 1/4 Solve for x.
February 9, 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.
February 9, 2014

Research and Statistics
Null hypothesis assumes no difference, while the alternative assumes some difference. Ho: x = y Ha: x ≠ y
February 9, 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.
February 9, 2014

Math Help
It would help if you proofread your questions before you posted them. 1. Where is the = sign? 2. Change to common denominator. 20/24x + 6/24 = -54/24 20/24x = -60/24 Would that give you -2?
February 9, 2014

Data apps and healthcare statistics
Since this is not my area of expertise, I searched Google under the key words "information systems healthcare delivery" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=information+systems+healthcare+delivery&ie=UTF-8&oe=UTF-8 In ...
February 9, 2014

Algebra 1
(1-.30)x = 300 Solve for x.
February 9, 2014

math
I assume you mean 1 3/4 to get 75%.
February 8, 2014

Stats
They are all right.
February 8, 2014

Stats
If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. .8 * (1-.6) = ?
February 8, 2014

Algebra
(8310-3320)/10 = ?
February 8, 2014

science (Partial)
2. gas, solid, liquid 3. It seeks the lowest level. 5. The water particles move so fast that they escape the liquid and become a gas. Foreign particles are deposited out.
February 8, 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.
February 7, 2014

math needs help
Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question.
February 7, 2014

Statistics
If you are talking "P(X)", isn't that probability?
February 7, 2014

Math
Factor. (x+3)(x+3) = 0 x = -3
February 7, 2014

Algebra
f(10) = 10^3 = 1000
February 7, 2014

Statistics
False False True
February 7, 2014

math (?)
What is your question?
February 7, 2014

Math
Q1. Find the total, then divide each category by the total. Express as percentage. Q2. 1.85 * Total = ?
February 6, 2014

math
y = 8x In each case, substitute ticket number for x and solve for y.
February 6, 2014

statistics (?)
Data lacking. What are the mean, standard deviation and n for the sample?
February 6, 2014

math(?)
More data needed.
February 6, 2014

math
a. 7.25 * 8 * 5 * 52 = x b. x * 8 * 5 * 52 = 13,800,000 In both cases, solve for x and express in terms of dollars.
February 6, 2014

math
9/12(25) + 24.7/56(145) + 6.2/13.1(95) = total time in minutes Add total time to 9:03.
February 6, 2014

math
Both include all values <3.
February 6, 2014

Human Relations Part 1
Opposite Look up the terms online or in a dictionary.
February 6, 2014

Human Relations Part 1
Opposite
February 6, 2014

maths
4 + 2(5) + 3(10) + 2(20) + 6(.05) + 10(.10) + 12(.25) + 22.50 + 79 - 20 = ?
February 6, 2014

Math
3.5/1 = x/23 Solve for x.
February 6, 2014

statistics
√-2 = √-1(√2) √-1 = i (imaginary number) √2 = 1.41
February 6, 2014

geology needs help
Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question.
February 5, 2014

geology needs help
Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question.
February 5, 2014

Chemistry needs help
Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question.
February 5, 2014

science
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. biofuel for vehicles, wind or solar energy for homes Also, we do not have access to your ...
February 5, 2014

Research Project: Anatomy & Physiology 1
Definitely, but does it fit one of those systems mentioned above? How about arthritis or another cancer like melanoma (a skin [integumentary] cancer).
February 5, 2014

maths
24/20 = x/25 Solve for x.
February 5, 2014

MATH
Use same process as in previous post.
February 5, 2014

MATH
continuous, because you can get smaller and smaller intervals. 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 each of the Z scores.
February 5, 2014

math
Change to common denominator. 1/6 + 3/6 = 4/6 = 2/3
February 4, 2014

Science
With the books and notebook, aren't they being moved?
February 4, 2014

Science
I agree with the first, but not the second.
February 4, 2014

Anatomy & Physiology
Have you looked at a diagram of the eye? https://www.google.com/search?client=safari&rls=en&q=eye+anatomy&ie=UTF-8&oe=UTF-8
February 4, 2014

Anatomy and Physiology
Yes.
February 4, 2014

STATISTICS
Are these all the young adults playing Pokémon? Then it is a population.
February 4, 2014

Statistics in Psychology
Z = (score-mean)/SD Calculate the Z scores and compare.
February 3, 2014

Statistics in Psychology
13. 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 Z = (score-mean)/SD ...
February 3, 2014

Statistics (?)
Is "n" the mean? Is "ox" the standard deviation? It would help if you abbreviations matched standard usage or you wrote out the terms. Where is the data from the sample?
February 3, 2014

Anatomy and Physiology
If it is a body cell, I would say C.
February 3, 2014

Math
Same process as in previous post.
February 3, 2014

Math
Find the mean (∑x/n) for your sample and multiply by 150.
February 3, 2014

Psychology (statistics)
Don't know about Q 25, but I would use the median and quartiles.
February 2, 2014

Psychology (statistics)
I don't understand your notation. However, to answer your question, convert the raw scores to standard scores, like the Z score. Z = (score-mean)/SD Which Z score, if any, is higher?
February 2, 2014

Psychology
If you cannot put the symbols in clearly, spell out the names for the concepts.
February 2, 2014

Statistics
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 give you a start. Find the means first = sum of scores/number of scores ...
February 2, 2014

Finance needs help
Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question.
February 2, 2014

PSY (?)
Same problem.
February 2, 2014

PSY (?)
Population mean = 100 and the standard deviation (SD) = 16, and N = 64? Do you know where the = sign is? Even so, we do not have data on the sample.
February 2, 2014

mechanics/motion
Tutors are online at different times. You may have to wait for a response to the problems you post.
January 31, 2014

science
We need to have the specific problems along with your answers before anyone can check them you.
January 31, 2014

UGA
Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question. Also you need to indicate the choices. Copy and paste do not work.
January 31, 2014

Chemistry (?)
Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question. What is your question?
January 31, 2014

statistics (?)
What "this" are you considering?
January 30, 2014

math (?)
insufficient data
January 30, 2014

Science needs help
Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question.
January 30, 2014

science
agree
January 30, 2014

Spanish
My Spanish is rusty, but you don't want an infinitive. If in the future, Yo te presentaré a mis amigos. If in the present, Yo te presento a mis amigos. Except for a command, the direct object pronoun comes before the verb. Don't you want the third person plural ...
January 30, 2014

Food Labels
agree
January 30, 2014

science
0ºC = 273ºK 600K - 273K = 327C Do you have a typo?
January 30, 2014

Bus. Math needs help
Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question.
January 30, 2014

math
L = 2W - 1 2L + 2W = 40 Substitute 2W-1 for L in second equation and solve for W. Insert that value into the first equation and solve for L. Check by inserting both values into the second equation.
January 30, 2014

math
M = W +163 (W+163) + W = 2713 Solve for W, then M.
January 30, 2014

Science
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. Look up each of those terms in your text or Google them.
January 29, 2014

Health (?)
What is your question?
January 29, 2014

math
17.5/28 = x/36 Solve for x.
January 29, 2014

bio statistics
Again, what are the mean and standard deviation of the weight gains? Use the same process.
January 28, 2014

statistics
What are the descriptive statistics for newborn weights? Just from my personal experience with newborns, that is an unusually heavy baby. Z = (score-mean)/SD Find table in the back of your statistics text labeled something like "areas under normal distribution" to ...
January 28, 2014

math
.75(16) = ? 16 - ? = ??
January 28, 2014

science
I assume that means how far he drove. 7 + 5 = ?
January 27, 2014

biology
Since this is not my area of expertise, I searched Google under the key words "photosynthesis cellular respiration compare" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=photosynthesis+cellular+respiration+compare&ie=UTF-8&oe=UTF...
January 27, 2014

Algebra
Agree
January 27, 2014

literature
Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question.
January 27, 2014

math needs help
Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question.
January 27, 2014

Anatomy & Physiology
https://www.google.com/search?client=safari&rls=en&q=graves+disease+symptoms&ie=UTF-8&oe=UTF-8
January 27, 2014

Psychology?
Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question. It seems like Margo.
January 27, 2014

English
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.
January 27, 2014

math
O = W + 16 = 3W Solve for W, then either W+16 or 3W.
January 27, 2014

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