Wednesday
December 17, 2014

Posts by PsyDAG


Total # Posts: 18,863

science
A liquid solution is a homogeneous mixture of two or more substances whose main constituents are of liquid form. Liquid solutions may have very different properties depending on the type of liquids in the solutions. Liquid solutions are widely used in the industrial sector in ...
July 14, 2014

algebra
miles/gallons = x
July 14, 2014

Maths lit,economics and business studies
That depends on your interests and abilities. Inquire with a school counselor. They have interest tests available that might clarify your interests.
July 14, 2014

statistics
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 related to the Z score. You will use probability between score and mean plus 50%.
July 13, 2014

Math (?)
Can't make sense of what you have posted.
July 13, 2014

Math 221
Divide numerator and denominator by 5. 130/105 = 26/21
July 13, 2014

math
Take the median cost of both to estimate. (42.5/30 * $3.29) * 7 = ?
July 13, 2014

math (?)
What is your question?
July 13, 2014

Dietetics needs help
Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question.
July 12, 2014

MATH
It would help if you proofread your questions before you posted them. Lacking Data. Please do not use all caps. Not only is it harder to read, but it is like SHOUTING online. Thank you.
July 12, 2014

math
Z = (score-mean)/SEm = (2.9 - 3)/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 related to the Z score.
July 12, 2014

English
4, since Snow White and Pinocchio are two different animations.
July 11, 2014

psy 315 (?)
It would help if you proofread your questions before you posted them. Confusion between commas and periods.
July 11, 2014

psy 315
What is your hypothesis/question?
July 11, 2014

English
Just because you "take away 300 points from one team" does not necessarily mean that those points will given to another team, so they do not have the same meaning.
July 11, 2014

statistics
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 between the two Z scores.
July 10, 2014

statistics
From your data, the mean for each widget would be 2.6 and the mean for the box would be 12*2.6 = ?
July 10, 2014

Math
1. Depending on the values of the numbers, it could be 5 or 6. Try 100^2 and 999^2. Are you searching for a maximum or minimum? 2. I don't know either. 3. Agree.
July 8, 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 proportions/probabilities related to the Z scores. a. in smaller portion b. Between Z scores and mean
July 8, 2014

Math/Statistics
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 related to the Z score.
July 7, 2014

business stats (?)
"probability that…" what ?
July 7, 2014

math
.05x = 15 Solve for x.
July 7, 2014

statistics
15/200 = ?
July 7, 2014

Math
Factor each dimension. 450 = 5 * 2 * 5 * 3 * 3 330 = 5 * 2 * 3 * 11 What are the common factors?
July 6, 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. Which experiment would want to do?
July 6, 2014

psychology
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.
July 6, 2014

Psychology
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.
July 6, 2014

statistics
You are looking for a distribution of means rather than raw scores. Z = (score-mean)/SEm SEm = SD/√n Now go to your Z table.
July 6, 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 (±.415) related to the Z scores. Insert Z values into the above equation.
July 4, 2014

Math (?)
What is the finance charge?
July 4, 2014

Biology
Use Key Words to Google for information.
July 4, 2014

Biology
Since this is not my area of expertise, I searched Google under the key words "components of cell nucleus" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=components+of+cell+nucleus&ie=UTF-8&oe=UTF-8&gws_rd=ssl In the future, you ...
July 4, 2014

health care
https://www.google.com/search?client=safari&rls=en&q=How+will+longitudinal,+multidisciplinary+electronic+patient+records+affect+the+quality+of+dental+care&ie=UTF-8&oe=UTF-8&gws_rd=ssl
July 3, 2014

probability (?)
It would help if you proofread your questions before you posted them. Data Lacking.
July 2, 2014

math
We cannot draw on these posts. Can you try a circle, rectangle and square?
July 2, 2014

math (?)
What properties?
July 2, 2014

Science
Producers are organisms that make their own food through photosynthesis or other reactions and are a food source for other organisms (e.x. plants, extremophile benthos communities). Consumers are organisms that ingest other organisms, like plants, in order to gain energy (e.x...
July 2, 2014

Statistics (?)
Data lacking.
June 30, 2014

Statistics
(50.5-50.25)/(52-50) = ?
June 30, 2014

Statistics (?)
Data Lacking.
June 30, 2014

Statistics
What is a "nonstandard normal distribution"? For Z scores: Mean = 0 SD = 1
June 30, 2014

Math-Circles (?)
An equation requires an equal sign.
June 29, 2014

statistics (?)
Sample data missing. For the value needed, find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability of the outliers on each of both ends (.05, .025, .005) and the Z score. 90% = mean &...
June 29, 2014

science
What is your introduction, which needs to include the purpose of the project? In relation to your purpose, what did the data you found lead you to conclude?
June 28, 2014

There is one more
Welcome!
June 27, 2014

There is one more
3x = x + 700 2x = 700 Take it from here.
June 27, 2014

probabilty
Cannot draw a tree here. However, you only have 3 colors, so the tree should start with the total (50), with three branches of 24, 17 and 9.
June 27, 2014

statistics (?)
Necessary data missing. Mean? SD? Number in sample? 95% = mean ± 1.96 SEm SEm = SD/√n
June 27, 2014

math
10/30 = ?
June 26, 2014

psychology
Agree with vision.
June 26, 2014

JEMS
793 OR 571
June 26, 2014

math
SD = √variance 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 between your Z scores.
June 26, 2014

math
From your data, it could be: 579,000,000 597,… 975,… etc.
June 26, 2014

math
From your data, it could also be: 426,888,888,888 624,888,888,888 462,… 642,… 264,...
June 26, 2014

science (?)
No figure. Cannot copy and paste here.
June 24, 2014

science
How can we help you? We cannot build inclined plane here.
June 24, 2014

Psychology
Your definition is right, but the choice is wrong. B is retroactive interference, the second task interfering with the first. A is the answer.
June 23, 2014

Math
8 - 5 = 3 3?,???,???,???
June 23, 2014

science
Since this is not my area of expertise, I searched Google under the key words "calculate field of view" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=calculate+field+of+view&ie=UTF-8&oe=UTF-8&gws_rd=ssl In the future, you can ...
June 22, 2014

algebra
Equation is wrong. Total earned/hourly earned = total hours/one hour x/$45 = 55/1
June 22, 2014

Statistics
Don't know what you call "five-step model," but here is a method. Z = (mean1 - mean2)/standard error (SE) of difference between means SEdiff = √(SEmean1^2 + SEmean2^2) SEm = SD/√n If only one SD is provided, you can use just that to determine SEdiff. ...
June 22, 2014

Statistics
Don't know what you are referring to with "the five steps," but here is a method. 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/...
June 22, 2014

Math
If he goes 3 times per week = 4.3 * 3 = about 13 times per month. $5 * 13 = $65 What does that tell you? There are 52 weeks in a year. 52 * 3 = 156 Divide by 365.
June 22, 2014

psychology
Try looking up each of the answers on Google.
June 21, 2014

psychology
Agree with C.
June 21, 2014

math (?)
What site? Lacking data.
June 21, 2014

statistics
The sample is too small for a confidence interval to be really meaningful. 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 ...
June 21, 2014

Math
9500
June 21, 2014

stats
Z = (mean1 - mean2)/standard error (SE) of difference between means SEdiff = √(SEmean1^2 + SEmean2^2) SEm = SD/√n If only one SD is provided, you can use just that to determine SEdiff. Find table in the back of your statistics text labeled something like "...
June 20, 2014

Science
Molecules, atoms, protons, neutrons and electrons?
June 19, 2014

epi (?)
What diagram?
June 19, 2014

math
All correct.
June 19, 2014

math
Most of Steve's answers do not fit the requirement of "The digit in my hundreths place is one less than the digit in my thousansths place."
June 18, 2014

math
.189 .178 .156 .145 .134 .123 Which do you want to use?
June 18, 2014

science
x * 15 * 6 = 216 Solve for x.
June 18, 2014

math (?)
Gets what?
June 18, 2014

math (?)
What is your question?
June 18, 2014

math
(5 * 24) + 8 = ?
June 18, 2014

ENGLISH 111
What is your area of interest? Enjoyment of the date? Repeated dating? Leading to a permanent relationship? Whichever: Online dating is (not) as satisfactory as traditional dating.
June 18, 2014

finite math
If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events.
June 17, 2014

finite math
.445
June 17, 2014

math
No figure shown. You cannot copy and paste here.
June 17, 2014

math
Use process indicated in previous posts.
June 17, 2014

math
Transpose two values on the left-hand side of the equation. -x = 48675 - 57865 - 23129 = ? Then multiply both sides by -1.
June 17, 2014

math
Transpose two values on the left-hand side of the equation. x = 2240 - 5277 + 9384 = ?
June 17, 2014

Statistics
A. .9498 E. (454+741+1058)/(478+833+1644) = ?
June 16, 2014

math
Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question. Also, it would help if you proofread your questions before you posted them. How many of each color? How specifically do you want it rounded?
June 16, 2014

algebra
Add the two equations to cancel out y. 5x = -15 You should be able to work it from there.
June 16, 2014

Statistics
What is the standard deviation? T = 50 + 10SD
June 16, 2014

Algebra
Add the two equations. -x = 2 -4 - y = -1 y = ?
June 16, 2014

science:biology
They all carry blood.
June 16, 2014

statistics for health research
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 scores.
June 16, 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.
June 16, 2014

Psychology?
Person
June 15, 2014

Math
"<" indicates that the previous value is LESS than the following value. ">" indicates that the previous value is MORE than the following value.
June 15, 2014

Algebra II
a and b. Anything to the first power ("^1") is that value, 100^1 = 100. c. There is a middle (xy) term missing. d. The x^2 values combine but do not cancel each other out.
June 15, 2014

psychology
What information do you want from us? Here is a guess. https://www.google.com/search?client=safari&rls=en&q=correlation+coefficient&ie=UTF-8&oe=UTF-8&gws_rd=ssl
June 14, 2014

Algebra
(x-3)(x+5) = ?
June 13, 2014

Anatomy
https://www.google.com/search?client=safari&rls=en&q=model+of+blood+flow+through+the+heart&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/...
June 13, 2014

psychology (?)
To what question?
June 13, 2014

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