Wednesday
October 1, 2014

Posts by PsyDAG


Total # Posts: 18,350

algebra
D, If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events.
September 22, 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.
September 22, 2014

math
It would help if you proofread your questions before you posted them. If each ate 1/3 (1/3+1/3+1/3=1), there would be no 1/4 for Don.
September 22, 2014

make up
.10x = $55 x = 55/.1 = 550
September 22, 2014

Algebra
agree
September 22, 2014

psych 42
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.
September 21, 2014

statistics
Z = (score-mean)/SD T = 50 + 10Z 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 to get percentage.
September 21, 2014

Biology
If not matched, the donation will most likely kill the recipient.
September 21, 2014

science
k = 1000, m = 1/1000 Never heard of h.
September 21, 2014

Math Help!!
9.95 + .10m = 12.95 + .08m Solve for m.
September 21, 2014

Stats
Didn't you ask this question before? If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. .60 * .44 = ?
September 21, 2014

statistics
It would help if you proofread your questions before you posted them. What is your question? Just guessing… 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...
September 20, 2014

statistics
If the study is of all members of the group for which conclusions will be made, it is a parameter. If of only a portion, it is a statistic.
September 20, 2014

science
Right.
September 19, 2014

Science
Agree for all.
September 19, 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.
September 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.
September 19, 2014

Biology
Since this is not my area of expertise, I searched Google under the key words "role of Helicase in transcription" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=role+of+Helicase+in+transcription&ie=UTF-8&oe=UTF-8&gws_rd=ssl In the...
September 19, 2014

Math
first one correct. Multiply both sides by 3. 6n - 7 = 45 Add 7 to both sides. 6n = 52 Divide by 6.
September 19, 2014

math
The optimal number of intervals ranges from 5-7.
September 19, 2014

stats
If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. .60 * .44 = ?
September 19, 2014

Math
1000 and what?
September 19, 2014

statistics
Data lacking.
September 19, 2014

math
540000 + 380000 = 920000
September 19, 2014

Math
Online, “*” is used to indicate multiplication to avoid confusion with “x” as an unknown. (15+9) * 3 = 24 * 3 = 72
September 18, 2014

algebra
Online "^" is used to indicate and exponent, e.g., x^2 = x squared. x^2 + 7x - 8
September 18, 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. https://www.google.com/search?client=safari&rls=en&q=molecule+that+transmits+...
September 18, 2014

Math
Is this what you are asking? 5 = billions 2 = hundred millions 7 = ten millions ecteteras
September 18, 2014

Science
https://www.google.com/search?client=safari&rls=en&q=Chemical+Reaction+Occurs+in+Fireworks&ie=UTF-8&oe=UTF-8&gws_rd=ssl
September 18, 2014

Biology
Since this is not my area of expertise, I searched Google under the key words "mismatched blood types donation effects" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=mismatched+blood+types+donation+effects&ie=UTF-8&oe=UTF-8&...
September 18, 2014

BIOLOGY
SY Sy sY sy
September 18, 2014

algebra
Since this is not my area of expertise, I searched Google under the key words "recursive formulas" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=recursive+formulas&ie=UTF-8&oe=UTF-8&gws_rd=ssl In the future, you can find the ...
September 18, 2014

Biology
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.
September 18, 2014

statistic
Another method. 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.
September 18, 2014

Math
L = 10(2W) = 20W 122 = 2L + 2W Substitute 20W for L 122 = 2(20W) + 2W = 42W Divide both sides by 42 to find W, then calculate L.
September 18, 2014

math
This should give you a start. 100 + 100 100 + (50 * 2) 100 + 50 + 20 + 20 + 10 100 + 50 + 20 + 10 +10 +10… 20 * 10… 10 * 20.
September 18, 2014

biology
If you mean homozygous by "true breeding," Brown is dominant over white, because all of F1 generation are all brown (Bw). If two Bw's mate, use the Punnett Square for F2. http://en.wikipedia.org/wiki/Punnett_square
September 18, 2014

math
1/4 * 8 = 8/4 = 2
September 18, 2014

Math
https://www.google.com/search?client=safari&rls=en&q=surface+area+of+cylinder+formula&ie=UTF-8&oe=UTF-8&gws_rd=ssl
September 18, 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 previous post.
September 18, 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.
September 18, 2014

comuter
What questions?
September 18, 2014

computer
What questions?
September 18, 2014

Algebra
0ºF (1st) A. 0 + 3 = 3 (2nd) B. 0 - 4 = -4 (3rd) C. -3 (4th) D. 3 (5th) With this information, you should be able to answer E and F yourself.
September 18, 2014

math
30 + 7 = 37
September 17, 2014

math
It would be the opposite order.
September 17, 2014

psychology
Didn't I answer this first question before? 1. Lower because children's socioeconomic status is typically based on the parent's status. From her ignorance of the facts stated above, I would wonder if her mother could afford a TV set. 2. All factors being equal, she...
September 17, 2014

elementary
Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question. Also, what is your question?
September 17, 2014

Science
Since this is not my area of expertise, I searched Google under the key words "Dangerous chemical properties of nail polish remover " to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=Dangerous+chemical+properties+of+nail+polish+...
September 17, 2014

Statistics (Klyocea)
First, if you have a question, it is much better to put it in as a separate post in <Post a New Question> rather than attaching it to a previous question, where it is more likely to be overlooked. 468/900 * 100 = ?
September 17, 2014

Statistics (Loray)
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.
September 17, 2014

Stats
One measure of variability is the range, highest value minus lowest. Since this is only a nominal scale, this is the only one that can be used. http://drdavespsychologypage.homestead.com/Two___Two_____four.pdf
September 17, 2014

stats
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 start you out. mean = ∑x/n, where x = score values and n = number of ...
September 17, 2014

STATS
A1) 75% A2) Should be the same. B1) 50% Not same, because below Q3 includes 25% below Q1.
September 17, 2014

statistics
.00-.19, .20-.29, .30-39, .40-49, .50-.59, .60-.69 are your intervals. Fill in the respective values.
September 17, 2014

Fractions
A) 1/3 + 1/3 = 2/3 + another 1/3 = 1 B) 3/4 - 2/3 = 9/12 - 8/12 = ?
September 17, 2014

Early Childhood Education
If it is really a "study meeting," I would say D.
September 17, 2014

math
What figure?
September 17, 2014

SS
The first also involves the death rate.
September 17, 2014

MATH
If solving for X, multiply both sides by 35 to get rid of the denominators. 28X + 5 = 280 Subtract 5 from both sides, then divide by 28.
September 16, 2014

Math
What is your question?
September 16, 2014

science
I agree with A for immediately after, but that would be followed by doing the experiment, analyzing the data and forming conclusions.
September 16, 2014

math
How long would it take to close a gap of 50 miles at 10 miles/hour? 50/10 = ?
September 16, 2014

Biology
How can you collect your data before you do the experiment? State the problem / ask questions Construct a hypothesis Do background research Design and implement an experiment Collect data Analyze results and draw conclusions Determine if hypothesis is true Report results
September 16, 2014

English
Probably because he was accompanied by her.
September 16, 2014

Poetry Check Please?
Rather than a suicide, this love letter seems to relate to self-mutilation. If it is suicidal, it wouldn't help the person survive. However, self-mutilation is related to depression.
September 16, 2014

Science!
Do not agree. If humans weigh less on the moon, wouldn't that also apply to bowling balls?
September 16, 2014

PHI208 week 4 media quiz
What following?
September 16, 2014

statistics
For .90, Z value should be a number > +1. Z = (score-88)/12
September 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 (.90) and its Z score. Insert Z score into equation above.
September 16, 2014

maths
If 12 is 6 times 2, then the distance = 6 times 5.
September 16, 2014

Check This Statistics Homework
All are right.
September 16, 2014

Statistics
Agree on all.
September 16, 2014

statistics
Z = (score-mean)/SD = (score-10)/1 Insert scores to find Z scores. 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.
September 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.
September 15, 2014

Statistics Homework Check
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.
September 15, 2014

Math
The final product will have a 12 by 12 base -> 144in^2. With one inch cut out from each corner, you need a (12+1+1) by (12+1+1) base to start. Since the base is square, all sides are equal.
September 15, 2014

5th grade math
5(24-3) = ? 5(36-4) = ?
September 15, 2014

Business math needs Help
Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question.
September 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.
September 15, 2014

Statistics Homework Check
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.
September 15, 2014

math
3/4 * 1/6 = ?
September 15, 2014

Statistics
mean = ∑x/n 41 = [(9*40)+x]/10 Multiply both sides by 10. 410 = 360 + x Subtract 360. 410 - 360 = x = ?
September 15, 2014

english
If you are going to discuss just vehicles, B. If you are going to consider other alternatives, A.
September 15, 2014

algebra
let x = longest side, then 2/3x = shorter sides. x + 2(2/3x) = 161 Solve for x, then 2/3 x.
September 15, 2014

Math 221 Week3
Either-or probabilities are found by adding the individual probabilities. Less than 3 means a 1 or 2, each having a 1/6 probability. 1/6 + 1/6 = ?
September 15, 2014

Psychology
As a child, her socioeconomic status would be determined by her parent's status, which would be lower than those in "an affluent neighborhood."
September 15, 2014

statistics
What is your question?
September 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.
September 14, 2014

Algebra
Yes
September 14, 2014

Elementry Statistics
Z = (score-mean)/SEm SEm = SD/√n (How large was the sample?) Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability of the Z score. Is it <.01?
September 14, 2014

statistics
(70 + 50)/2 = ?
September 14, 2014

Statistics
If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. (1/52)^12 = ?
September 14, 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 your later post.
September 14, 2014

8th grade homework
Square r. 66 = 1/3(3.14) 9 h Combine terms. 66 = 3 * 3.14h = 9.42h Divide both sides by 9.42. 7 = h
September 14, 2014

math
Right.
September 14, 2014

Math
First answer right. What is value of e? 1,000,000? Even so, what happened to the 7?
September 14, 2014

Statistics
If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. [(365-31)/365]^31 = ?
September 14, 2014

Math!
1) 19 + 5 (16) + 3(16) = 19 + 80 + 48 = 147 (agree) 2) y^3 + 3xy^2 + 2x +13 10x -8x = 2x 3) Right
September 14, 2014

Statistics
To equal 1, both numerator and denominator need to be the same value. Cannot do Venn diagram here.
September 14, 2014

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