Friday
July 25, 2014

Posts by PsyDAG


Total # Posts: 17,972

Science
We have no knowledge about your house or the fungi in it.

Science
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. As answered to your later post, we don't know about your house.

maths
It would help if you proofread your questions before you posted them. "11/2"?

Math (?)
What is your question?

math
Here is the process. It doesn't fit with the above answer. m = j + 17 m + j = 49 Substitute j+17 for m in second equation and solve for j. Insert that value into the first equation and solve for m. Check by inserting both values into the second equation.

Algebra
a. Best = y = 40 + .10x A+ = y = 35 + .20x b. Calculate y when x = 500. c. 40 + .10x = 35 + .20x Solve for x.

Algebra
Substitute the value for x and solve the equation for S. S = 50(14) + 450 = 700 + 450 = 1150 Do the same for the other values.

Math
3.3 - 5(.2) = ?

STATS
Yes

Statistics
Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability (.45) and its Z score. Insert the Z value in your equation and solve for x.

Research and Statistics
What does it mean? https://www.google.com/search?client=safari&rls=en&q=truncated+range+statistics&ie=UTF-8&oe=UTF-8

statistics
No, since the value is above the mean, it would be less than 50%. 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.

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

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

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.

statistics
Z = (score-mean)/SD Solve for Z.

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...

statistics
Z = (score-mean)/SD

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.

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...

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

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

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.

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.

Math (?)
What is your question?

Math
(4+x)/(3+4+7+10+x) = 1/4 Solve for x.

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.

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

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.

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?

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 th...

Algebra 1
(1-.30)x = 300 Solve for x.

math
I assume you mean 1 3/4 to get 75%.

Stats
They are all right.

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) = ?

Algebra
(8310-3320)/10 = ?

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.

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

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

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

Math
Factor. (x+3)(x+3) = 0 x = -3

Algebra
f(10) = 10^3 = 1000

Statistics
False False True

math (?)
What is your question?

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

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

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

math(?)
More data needed.

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.

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

math
Both include all values <3.

Human Relations Part 1
Opposite Look up the terms online or in a dictionary.

Human Relations Part 1
Opposite

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

Math
3.5/1 = x/23 Solve for x.

statistics
√-2 = √-1(√2) √-1 = i (imaginary number) √2 = 1.41

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

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

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

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 tex...

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).

maths
24/20 = x/25 Solve for x.

MATH
Use same process as in previous post.

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.

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

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

Science
I agree with the first, but not the second.

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

Anatomy and Physiology
Yes.

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

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

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 1...

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?

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

Math
Same process as in previous post.

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

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

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?

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

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 Subt...

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

PSY (?)
Same problem.

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.

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

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

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.

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?

statistics (?)
What "this" are you considering?

math (?)
insufficient data

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

science
agree

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 ...

Food Labels
agree

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

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.

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.

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

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.

Health (?)
What is your question?

math
17.5/28 = x/36 Solve for x.

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