Sunday
October 26, 2014

Posts by PsyDAG


Total # Posts: 18,541

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

Biology
Since this is not my area of expertise, I searched Yahoo under the key words "structures in all cells" to get these possible sources: https://search.yahoo.com/search?p=structures+in+all+cells&ei=UTF-8&fr=moz35 In the future, you can find the information you desire ...
October 20, 2014

Math HELP!
agree.
October 20, 2014

Algebra
2S + 13s = 108 4S + 14s = 144 Multiply top equation by 2 and subtract the second from that product to find s. Insert that s value into either equation to find S.
October 20, 2014

statistics
How can the answer be incorrect, if there is no answer? Using the Z table in the back of your statistics text labeled something like "areas under normal distribution," use the smaller proportion for a and b. For c, add proportions between Z scores and mean.
October 20, 2014

statistics
a and b. Z = (score-mean)/SD What were your answers to c and d?
October 20, 2014

maths
Assuming that each twin received equal portions, 1/8 divided by 2 = ?
October 20, 2014

Health
agree
October 20, 2014

Algebra: Answer Check
agree
October 20, 2014

algebra
D = 4G 5.25G + 6.50D = 906.25 5.25G + 6.50(4G) = 906.25 Solve for G, then D.
October 20, 2014

Algebra
N = 360-S S + 2N = 460 S + 2(360-S) = 460 Solve for S.
October 20, 2014

Science
7.33
October 20, 2014

PLZ HELP.( INT. SCIENCE)
For every numeral that you move to the right with a decimal point, you have another negative power of ten. Online "^" is used to indicate an exponent, e.g., x^2 = x squared. Ten to the minus two power is written 10^-2. This way, it will not be confused with ten minus...
October 20, 2014

Math
If the first die = 2 or 4, the sum of the two will not = 12. The probability of a 6 = 1/6
October 20, 2014

Algebra
right.
October 20, 2014

statistics
What is your answer (guess)?
October 20, 2014

Math
Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question.
October 19, 2014

Harmon
Online "^" is used to indicate an exponent, e.g., x^2 = x squared. Online, “*” is used to indicate multiplication to avoid confusion with “x” as an unknown. For each decimal place moved to the right, there is an increase of the negative power of ...
October 19, 2014

Statistics
Missing data. What is your question?
October 19, 2014

statistics
What is your question? Length * Width = Area
October 19, 2014

statistics
If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. Either-or probabilities are found by adding the individual probabilities.
October 19, 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 later post.
October 19, 2014

Probability
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 19, 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. 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 ...
October 19, 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 19, 2014

statistics
Since mean, mode and median have the same value in a normal distribution, 50%.
October 19, 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 19, 2014

Algebra
(.50*.40)f = 500 Solve for f.
October 18, 2014

STATISTICS
Please do not use all caps. Not only is it harder to read, but it is like SHOUTING online. Thank you. Z = (score-mean)/SD Calculate without the six zeros to indicate millions to make it easier. Find table in the back of your statistics text labeled something like "areas ...
October 18, 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 17, 2014

health
C
October 17, 2014

math
√36 = 6 Does that look irrational?
October 17, 2014

Math
Disagree.
October 17, 2014

Math
Yes.
October 17, 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. Multiply by 100. Percentile rank is % ≤ any score.
October 17, 2014

health/stats
How are you measuring cholesterol? In one person over time? Population averages? It can approximate a normal distribution, but very unlikely to "exactly" match.
October 17, 2014

science help
Agree.
October 16, 2014

Math
Add 2 to both sides, then multiply by 2.
October 16, 2014

Sociology
Consider that the President of the United States earns less in office than many company executives.
October 16, 2014

Life orientation
How far in the past are you using for comparison?
October 16, 2014

Statistics
An independent variable (explanatory?) is the potential stimulus or cause, usually directly manipulated by the experimenter, so it could also be called a manipulative variable. A dependent variable is the response or measure of results. Extraneous variables — other than ...
October 16, 2014

Statistics
What are "cubes"? What did you choose?
October 16, 2014

Statisitics
Population is the total group to which results will be generalized. A sample is a portion of that population.
October 16, 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.
October 16, 2014

Statistics
In 1966, twins reared together have lower correlation than those raised apart.
October 16, 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 (.20) and its Z score. Insert into above equation to calculate raw score.
October 15, 2014

Math
with larger n, sample mean would be more accurate estiamate of population mean. If the population distribution is normal, larger sample n would be closer approximation of normal distribution.
October 15, 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 15, 2014

Statistics
http://davidmlane.com/hyperstat/z_table.html
October 15, 2014

Science HELP
You don't indicate which color is dominant. If Black is dominant, then C is correct.
October 15, 2014

math
Online, “*” is used to indicate multiplication to avoid confusion with “x” as an unknown. AB * BC = AB^2C
October 15, 2014

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. See later post.
October 15, 2014

Math
Right.
October 15, 2014

math
A = 3B or B = A/3 C = 2A + 10 or A + B + C = 180 A + A/3 + (2A+10) = 180 Solve for A, then B and C.
October 15, 2014

Math
You are welcome.
October 15, 2014

Math
Yes
October 15, 2014

Basic Statistics
95% = mean ± 1.96 SEm 1.96 SEm = 200 SEm = SD/√n
October 15, 2014

Pages: 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | Next>>

Search
Members