Saturday
March 28, 2015

Posts by PsyDAG


Total # Posts: 19,542

Math
C = πd = 3.14 * 2.5 = ? Area of towel = ? * 10 * 15 Of course, this will be a little off, since the circumference will increase as the layers accumulate.
February 20, 2015

Last help Thanks
The ratio is 4:7, but the odds are 4/11, # Ss vs the total possible choices.
February 20, 2015

Satistics Help
Typos? Odds of winning = a/(a+b) = # winning games over total.
February 20, 2015

Statistics
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'll let you do the ...
February 20, 2015

Psyc
What is your question? You cannot copy and paste here.
February 20, 2015

life orientation
I assume you are talking about approach-avoidance conflicts, which will lead to vacillation (alternating approach and avoidance without ever accomplishing the goal). Types of Internal Conflicts I. Approach-approach involves two or more positive goals. It is easily resolved (...
February 20, 2015

Math
72º/3 = 24º per slice 360º/24º = ?
February 19, 2015

Biology
Zunie forgot that the male is XY, and the Y chromosome does not contain a color vision gene. Use a Punnett square. https://www.google.com/search?client=safari&rls=en&q=punnett+square&ie=UTF-8&oe=UTF-8&gws_rd=ssl
February 19, 2015

Math
We do not have data for the number of chores, but we do have data for the number of hours worked. Again, hours of chores/summer month = 5 * 4 * 1.5 = 30 hours per 20 weeks If you do not have a typo, hours of chores/winter month = 6 hours per 28 weeks Mean = ∑x/n = (30+6...
February 19, 2015

Math
d = rt = 5 * 8/60 = ? ?/(10/60) = r = miles/hour
February 19, 2015

business math
It would help to know the specific problem.
February 19, 2015

math please help
First triangle has a perimeter of 18 = 3 + 7 + 8. 54/18 = 3 So if they are "similar," each side must be three times larger.
February 19, 2015

Anthropology
Formal sanctions typically involve fines, incarceration and/or execution. Informal sanctions typically involve scorn, rejection and/or exclusion.
February 19, 2015

math
Best estimate = 2/8 * 120 = ?
February 19, 2015

math
Best estimate = 6/300 = ? ? * 1800 = ??
February 19, 2015

math
The answer is either 12/35 or 35/12, depending on which version of the problem is correct. Neither one reduces to 5/6.
February 19, 2015

math
Is it (3/7)d or 3 divided by 7d? If the latter, multiply both sides by d 3/7 = (5/4)d Multiply both sides by 4/5. d = 3/7 * 4/5 = 12/35 If the former, Multiply both sides by 7/3 d = 7/3 * 5/4 = ?
February 19, 2015

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.
February 19, 2015

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.
February 19, 2015

Math
Summer = 5 * 4 * 1.5 = hours/week It would help if you proofread your questions before you posted them. He only did 6 hours of shoveling for the 7 cold months? Mighty sparse snowfall.
February 18, 2015

science
Since this is not my area of expertise, I searched Google under the key words "transporters of protein in plants" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=transporters+of+protein+in+plants&ie=UTF-8&oe=UTF-8&gws_rd=ssl In the...
February 18, 2015

math
Is this what you mean? d^2+1/d+(7*5d/d)-1d d/d = 1 Multiply by d. d^3 + 1 + 35d - d = ?
February 18, 2015

math
C = $49 + $20m
February 18, 2015

algebra
What formula? What is your question? You cannot copy and paste here.
February 18, 2015

Statistics
Do you know the 68-95-99.7 rule? Approximately 68% of scores in normal distribution are within one standard deviation (34% on each side of the mean), 95% within 2 SD, and 99.7% within 3 SD.
February 17, 2015

Science
1. Shape determines which other nerves they stimulate. 2. An organ consists of many different kinds of tissues.
February 17, 2015

Biology
What mutation?
February 17, 2015

statistics
Z = (score-mean)/SE 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. How does P = .05 compare?
February 17, 2015

science
Can't tell unless we get speed for last third.
February 17, 2015

Math
Assuming same number of stairs between each floor: 3rd floor --> up two floors 6th floor --> up six floors Got it?
February 16, 2015

math
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'll let you do the ...
February 16, 2015

Math
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'll let you do the calculations.
February 16, 2015

Algebra
What is your question?
February 16, 2015

Interpersonal communication
Definitely true. We each have a code book (language, etc.) that we use. We need to use that to communicate, hoping that the receiver has a code book that can decode your message. Check out this article: http://drdavespsychologypage.homestead.com/Communication_Confusion.pdf
February 16, 2015

math
laps < 10
February 16, 2015

science
Assuming that the jar is air tight, the flame will go out once the oxygen in the jar is used up.
February 16, 2015

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 16, 2015

costs
25/4 = x/.59 Solve for x.
February 16, 2015

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 16, 2015

anthropology
Good as far as you went, but you didn't discuss if "we should impose our values on those cultures." What are your thoughts about that?
February 16, 2015

Probability
Network not shown. You cannot copy and paste here.
February 16, 2015

statistics
Z = (score-mean)/SD = (17-mean)/SD Which has the highest Z score?
February 15, 2015

stats
95% = mean ± 1.96 SEm SEm = SD/√n
February 15, 2015

math
4 - .4 = ?
February 15, 2015

math
In what time zone? 7:15 + 5 hours - 5 minutes = ?
February 15, 2015

algebra
35/45 = ? gallons
February 15, 2015

MATH
Please do not use all caps. Not only is it harder to read, but it is like SHOUTING online. Thank you. What question?
February 15, 2015

science
Since this is not my area of expertise, I searched Google under the key words "electrostatic precipitator" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=electrostatic+precipitator&ie=UTF-8&oe=UTF-8&gws_rd=ssl In the future, you ...
February 13, 2015

Math
248/100 = 124/50 = 62/25
February 13, 2015

statistics
Didn't I answer this previously? 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. Range = highest score minus lowest Find ...
February 13, 2015

math
2 1/5 = 11/5
February 12, 2015

Math
Insufficient data.
February 12, 2015

science 1 question
I would say B.
February 12, 2015

Math
Let x = longest side of the triangle x + x/2 + (x-7) = 53 Solve for x, then x/2 and x-7.
February 12, 2015

Math: Probability
If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. Assuming there is no replacement: P(red,red) = 3/10 * 2/9 = ? P(red,blue) = 3/10 * 4/9 = ?
February 12, 2015

Statistics
Discrete only can be whole numbers, no partial.
February 12, 2015

Math
If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. 22/100 * 21/99 * 20/98 = ?
February 12, 2015

Introductory Algebra
No blueprint available. L = 2W + 7 2W + 2L = 68 Substitute 2W+7 for L in the second equation and solve for W. Insert that value into the first equation to solve for L. Check by putting both values into the second equation.
February 11, 2015

math
8.2m/5m = x miles/15 miles Solve for x.
February 11, 2015

pre-algebra
7 cm/40.4 cm = x m/80.6 m Solve for x.
February 11, 2015

Science
Since this is not my area of expertise, I searched Google under the key words "describe the flow of blood in the human body" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=describe+the+flow+of+blood+in+the+human+body&ie=UTF-8&oe=...
February 11, 2015

science
Since this is not my area of expertise, I searched Google under the key words "life cycle of the animalia kingdom" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=life+cycle+of+the+animalia+kingdom&ie=UTF-8&oe=UTF-8&gws_rd=ssl In ...
February 11, 2015

math
P(treat) = 20/36 = ? P(not) = (36-20)/36 = ?
February 11, 2015

Law?
Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question.
February 11, 2015

math
You cannot copy and paste here.
February 11, 2015

6th grade math
For the same reason that you do it in an equation, to keep it balanced.
February 11, 2015

statistics
Z = (score-mean)/SD Which one has the largest positive Z score?
February 11, 2015

statistics
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 Find ...
February 11, 2015

biology
Mendel says 4.
February 11, 2015

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.
February 11, 2015

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. Hint: look in the smaller portion.
February 10, 2015

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 10, 2015

statistics
95% = mean ± 1.96 SEm SEm = SD/√n
February 9, 2015

math (?)
Does she need 1/5 of 6 yards for a bow or 1/5 of a yard?
February 9, 2015

Public speaking
I would say A.
February 9, 2015

Math
6/18 = 9/27 = 3/9 Can only find two others. I'll let you provide the reasoning.
February 9, 2015

math
A square, a specific type of rectangle, would give you the largest area.
February 9, 2015

science
Disagree, Google each alternative.
February 9, 2015

math
Weight losses not given.
February 9, 2015

math
I assume you are saying the area of the square box = 486. L^2 = 486 L = √486
February 9, 2015

Math Probability Outcome
It would help if you proofread your questions before you posted them. If you choose two socks, how do you get "2 pair of white socks? If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the ...
February 9, 2015

statistics
mean, a particular measure of central tendency.
February 8, 2015

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 "...
February 8, 2015

STATS
Z = (score-mean)/SD = (190-180)/17 = ?
February 8, 2015

Math
A) # $20 notes/total notes = ? B) Either-or probabilities are found by adding the individual probabilities. C) # $50 notes/total = ? D) 9/18 = ?
February 8, 2015

English
In today's society, many middle class people argue that they cannot build wealth because of wrong choices. This is a better statement of the thesis, but I don't know how you will be able to support it.
February 7, 2015

math
one ounce = 6 teaspoons 6/24 = x/6 Solve for x.
February 7, 2015

stats
P(2 blue balls) = 20/30 * 19/29 P(red ball third) = 10/28
February 7, 2015

statistics
Definitely right.
February 6, 2015

Math
If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. A. .8 * .7 = ? B. .2 * ? = .18
February 6, 2015

Probability
http://drdavespsychologypage.homestead.com/Odds__Figuring.pdf
February 6, 2015

Statistics HELP
P(red in A) = 1/5 P(red in B) = 3/16 To compare, change to decimals.
February 6, 2015

Statistics
HH TT TH HT Four possibilities.
February 6, 2015

Crime and Society
What rates?
February 6, 2015

Algebra
Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question. Please put equation all on one line. 9x - y = 11 x + 3y = 23 Multiply first equation by 3. 27x - 3y = 33 Add second and third equation to ...
February 5, 2015

college algebra
Let x = miles. $20 +$.50x = $1.50x Solve for x, then substitute 30 for x.
February 5, 2015

math
5/30 = 1/6 Since 1/6 < 1/5, estimate slightly < 20%
February 5, 2015

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, 2015

Math
290? 280? etc.
February 5, 2015

statistic
Have no idea of contents of Table 1. 1. No 2a. SEm = SD/√n = (√variance)/n 2b. Z = (score-mean)/SEm 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...
February 5, 2015

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