Thursday
July 2, 2015

Posts by PsyDAG


Total # Posts: 20,001

Algebra 1
You got it!
October 31, 2014

statistics
Z = (score-mean)/SD SD = √variance
October 30, 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 score. Multiply by 100.
October 30, 2014

English
Although I don't believe the statement, "We are all equally wise."
October 30, 2014

math
(1-.55)x = 252 Solve for x.
October 30, 2014

Math
Look for two factors for each of the two end terms. 16 = 4,4 or 8,2 or 16,1 2 = only 2,1 By combining them, what will add to -14? Remember that one has to be negative. That is the beginning of your work. Carry on.
October 30, 2014

algebra (?)
What is your question?
October 30, 2014

Math--1 question?
To find the median, arrange score in order of value. Which has 15 as the middle-most value?
October 30, 2014

Algebra
x^2 + 6x + 5 = 0 (x+1)(x+5) = 0 x = -1 or -5
October 30, 2014

Math question
http://drdavespsychologypage.homestead.com/Two___Two_____four.pdf Nominal scales only use mode, Ordinal scales can use mode or median.
October 30, 2014

Math help!
Oops, I agree with your second answer.
October 30, 2014

Math help!
Pythagorean theorem. a^2 + b^2 = h^2 a^2 + 25 = 169 a^2 = 169 - 25 = 144 I would disagree.
October 30, 2014

math
A = 2x (A-5) = 3(x-5) Substitute 2x for A 2x-5 = 3x -15 -x = -10 x = 10
October 29, 2014

statistics
Z = (score-mean)/SD Insert values and compute Z.
October 29, 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.
October 29, 2014

Business Ethics
What are your choices?
October 29, 2014

Math
M = 2J M^2 + J^2 = 125 = (2J)^2 + j^2 = 4J^2 + J^2 = 5J^2 Solve for J.
October 29, 2014

Geometry Needs help
Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question.
October 29, 2014

Math
L = 8(2^2)/π^2 = 32/π^2 How far out do you want π in decimal places?
October 29, 2014

math algeba
Online, “*” is used to indicate multiplication to avoid confusion with “x” as an unknown. Online "^" is used to indicate an exponent, e.g., x^2 = x squared. (8.76*10^9)(6.52*10^-3)(13.27 * 10^-5) = When multiplying numbers, the exponents are added...
October 29, 2014

Algebra
No table shown. You cannot copy and paste here. 6 * 4 = 24 carnations 4 * 4 = 16 roses.
October 28, 2014

Math
Data is unclear. 4/5 What?
October 28, 2014

English
"As he…" seems awkward. 5 is better than 4.
October 28, 2014

Algebra
If the strawberries are multiplied by 3, the same needs to be done for the other fruits.
October 28, 2014

Math (?)
With your data, all I can get is last year + $800. What zero are you talking about?
October 28, 2014

Math
S = 1/3D + 3
October 28, 2014

statistics
a,b. 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 the Z score. Multiply by 100. c. Find table in the back of your statistics text labeled something ...
October 28, 2014

Math help
Agree.
October 28, 2014

Statistics
95% = mean ± 1.96 SEm SEm = SD/√n
October 28, 2014

statistics
What is the claim? The way you have your data arranged make s them very difficult to read.
October 28, 2014

English
It could mean both, but I have the image of "grown-up." http://drdavespsychologypage.homestead.com/Decision_Trap.pdf
October 28, 2014

English
"A few days" is more specific and seemingly much shorter than "years." How about "recently," "not long ago," "a while ago?"
October 28, 2014

english .... thinking question... please help!!
Second sentence is unclear. What is the referent for "it"? Values? Beliefs? Behavior? Once values are developed, they are typically strongly held, so they are unlikely to change "day-to-day." What values/beliefs do you have? How have they effected your ...
October 28, 2014

English ... thinking question!!
http://drdavespsychologypage.homestead.com/Decision_Trap.pdf
October 28, 2014

Algebra
Substituting any one of the known values for temperature, does that give you the known value for evaporation?
October 27, 2014

math
Both round up to 1 each. Multiply numerator and denominator of 3/5 by 4 and 3/4 by 5, then add. Compare both sums.
October 27, 2014

Statistics
Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question. Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/...
October 27, 2014

Algebra, help please!!!
5% = .05 = 5/100 = 1/20 = etc. Just keep the same ratio.
October 27, 2014

Algebra, help please!!!
A. 5:100 B. 2.5:50 C. 1:20 D. 8:160 E. .5:10
October 27, 2014

college algebra
C = .80 + .33x
October 27, 2014

Psychologic
Last one.
October 26, 2014

Psychologic
I would vote for no systematic relationship.
October 26, 2014

math
With 6 people preparing bags, they would be able to prepare 6 bags every 2 minutes. 900/6 * 2 = total minutes Divide that answer by 60 to get hours.
October 26, 2014

Algebra 1
3, 6, 12, 24, 48
October 26, 2014

english
Use a lot of "I" and "me." Express the emotions felt.
October 26, 2014

Theories and issues in working with school-age chi
You are welcome.
October 26, 2014

Theories and issues in working with school-age chi
Agree.
October 26, 2014

Theories and issues in working with school-age chi
Since it effects relationships with others, I would say D. Gross muscular movement would be related to B. Since a checkbook can be related to other than the home, I rejected C. To me, A would involve internal processes like emotion and thought. With multiple choice questions, ...
October 26, 2014

Theories and issues in working with school-age chi
Disagree.
October 26, 2014

math
5 - 3 = ?
October 26, 2014

Maths
Data needed.
October 26, 2014

algebra
4x - 7 > 150 To solve for x, add 7 to both sides and then divide by 4.
October 26, 2014

algebra
24 + y?
October 26, 2014

Math
This help is free. 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 I'...
October 25, 2014

Science HELP!
Agree.
October 25, 2014

science
Escape is to get out of the range of earth's gravity, while orbital is to maintain a velocity to keep from falling back to earth.
October 25, 2014

geometry?
Multiplybot hsides by 5, then subtract 10. a + 10 = -15
October 25, 2014

Psychology
You are welcome.
October 25, 2014

Psychology
Agree with all.
October 25, 2014

Math
Are you missing a zero in the second rate? 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. Is it less than .05?
October 25, 2014

Math
657/146 = x/100 Solve for x and convert to minutes and seconds.
October 25, 2014

statistics
√.45
October 25, 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 each Z score.
October 25, 2014

statistics
√.623
October 25, 2014

Math
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. Is it less than .05?
October 25, 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 for the Z score. Multiply by 100.
October 24, 2014

Help Math
No model. Cannot copy and paste here.
October 24, 2014

ALGEBRA
99.5/5 = y/3 Solve for y.
October 24, 2014

science
Since we don't know your life events, we don't know how those apply to you.
October 24, 2014

statistics
Agree.
October 24, 2014

biology
sarcomere
October 23, 2014

statistics
Z = (score-mean)/SD = (73-46)/9 = ? Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability between mean and that Z score.
October 23, 2014

Statistics
a) Z = (score-mean)/SD Z = (20-25)/10 (do not use SEm = SD/√n) Z = -.5 p = .6915 p*n = ? b) Again, don't use SEm, which is used for distribution of means rather than raw scores. In the Z table, .0559 in the smaller portion gives a Z score of 1.59. c) For this one, ...
October 23, 2014

science!!
Since the son gets the X from mom, she is heterozygous for that gene, a carrier. The daughter has to get XX, both with hemophilia, one from each parent. That must mean that dad has hemophilia too.
October 23, 2014

Science
With mitosis, the number of chromsomes double before the cell splits, leavind the daughter cells with the same species number of chromosomes (diploid). This duplication does not occur with meiosis, so the daughter cells have only half the original chromosomes (haploid). I hope...
October 23, 2014

Science
Double the number of cells with 12 chromosomes. Double the number of cells with 6 chromosomes.
October 23, 2014

Math Help!
a^2 + b^2 = c^2 36 + 81 ≠ 144
October 23, 2014

Int.science
Of the two, the line is best.
October 23, 2014

Math
2x^3*2x^-1 = 4x^2 y^-3*y^-3 = y^-6
October 23, 2014

Science Project: Teeth
Before the experiment, you would want to research previous data about the variables involved to indicate why you set up the experiment the way you did. The discussion is the last part of the paper and occurs after the experiment is completed.
October 23, 2014

statistics
Here is how to find the answer: 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 and insert the values into the above equation to find ...
October 23, 2014

celebrating Diversity
Right
October 22, 2014

science
If their diet is exclusively on cactus flowers, like the panda and bamboo, I would go with D. If the cacti were the only source on the island, and the diet is not exclusive, I would agree with you.
October 22, 2014

Geometry
Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question.
October 22, 2014

SBVC
b = 3h or b/3 = h A = 300 = bh = b*b/3 = b^2/3 300 = b^2/3 Solve for b.
October 22, 2014

PSY202
https://www.google.com/search?client=safari&rls=en&q=critical+thinking+to+overcome+cognitive+bias+in+online+learning&ie=UTF-8&oe=UTF-8&gws_rd=ssl
October 22, 2014

math
L = W + 7 198 = LW = W(W+7) Solve for W then L. Perimeter = 2W + 2L
October 22, 2014

PSYCH/SOCIOLOGY!!!
You could even take both at the same time to give you a running comparison.
October 22, 2014

Math
Can't do with "a single exponent." Each term has its own exponent. When multiplying terms, you add the exponents. x^4 * y^12
October 22, 2014

health
No elevators or escalators?
October 22, 2014

guidance
agree
October 21, 2014

Biology
Each pregnancy is an independent event. One does not influence the other. Assuming each parent is heterozygous for the recessive gene (otherwise they would have dies at 20 months), the chances for the disorder is 25% for every pregnancy. If the events are independent, the ...
October 21, 2014

math
Cannot copy and paste here.
October 21, 2014

math
No chart.
October 21, 2014

Math
2 + 5 = ? 8 + 2 - 1 = ?
October 21, 2014

Science
I agree.
October 21, 2014

statistics
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 "...
October 21, 2014

guidance
Frustration is the emotion, while aggression is the behavior.
October 20, 2014

guidance
Prosocial behavior is designed to help others.
October 20, 2014

math 11
No diagram. You cannot copy and paste here.
October 20, 2014

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