Thursday
November 27, 2014

Posts by PsyDAG


Total # Posts: 18,731

Algebra
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.
November 4, 2014

Math
Q3 is the value that 75% of the students score equal to or below.
November 4, 2014

math
14.5% = 14.5/100 = .145 Percent means "per 100"
November 4, 2014

Math
(7*28) - (14*3) - (11*3) = ?
November 3, 2014

Stats(?)
What is your question? Yes, the player is very likely to lose the $10.
November 3, 2014

Math
---- = 6/9 = 2/3 4/40 = 1/10 2/5 = 4/10 8/14 = 4/7
November 3, 2014

Sci207
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. We also do not have your textbook. Have you tried Googling "advances in agricultural ...
November 3, 2014

math
Convert all to tenths. 53/10 - 28/10 = ?
November 3, 2014

English
My best guesses for the first two would be "plants" and "environment" respectively. For the third, I would guess "extinct", but I don't see the connection with "no rain."
November 3, 2014

Geometry
7 = 5,2; 2,5; 3,4; 4,3; 6,1; 1,6 = 6/36 6 < 1,1; 2,2; 1,2; 2,1; 1,3; 3,1; 1,4; 4,1; 2,3; 3,2 = 10/36 Either-or probabilities are found by adding the individual probabilities.
November 3, 2014

Maths
Right.
November 3, 2014

science (?)
What are your choices?
November 3, 2014

science (?)
What are your choices? You cannot copy and paste here.
November 3, 2014

STAT
1A) Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability (.05, .025, & .005, respectively) and their Z scores. % = mean ± Z SEm SEm = SD/√n 2A) Same process. 3) Data ...
November 2, 2014

science
Does your research of previous work indicate that music affects blood pressure? If so, then you can use any of the beginning sentences and title, although my preference is the second one. If not, then you might want to make your title and beginning sentence more general. Hint...
November 2, 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.
November 2, 2014

maths
(11+x)(8+x) = 208 88 + 19x + x^2 = 208 x^2 +19x - 120 = 0 Factor and solve.
November 2, 2014

Statistics (?)
Inadequate data.
November 2, 2014

math
30/2 = ?
November 2, 2014

psychology
Hypothesis: sounds like Edwina is suffering from a generalized anxiety disorder.
November 1, 2014

Statistics
a) Z = (mean1 - mean2)/standard error (SE) of difference between means SEdiff = √(SEmean1^2 + SEmean2^2) SEm = SD/√n = 15/√64 If only one SD is provided, you can use just that to determine SEdiff. Find table in the back of your statistics text labeled ...
November 1, 2014

Statistics (?)
Lacking data. Need to have some measure of variability to solve.
November 1, 2014

algebra
x^2 - 6x + 9 + 10x - 300 + 24 Combine like terms. x^2 + 4x - 267 I can combine, but I can't find the factors. I hope this what you really wanted.
November 1, 2014

Intermediate Algebra
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.
November 1, 2014

College Intermediate Algebra
Online "^" is used to indicate an exponent, e.g., x^2 = x squared. Unless you forgot the power on the first x, 2x + 4x = 6x. Otherwise, you are on the right track.
November 1, 2014

math
What is the context? I have no idea of what the "**" means.
November 1, 2014

Math
Although I am not familiar with "Webassigns default tolerance," 7.52609 rounds to 7.53.
November 1, 2014

MATH
Yep.
November 1, 2014

Genetics
Since both parents have to be homozygous, all of F1 will be heterozygous (Bb). Do a Punnett square for F2. https://www.google.com/search?client=safari&rls=en&q=Punnett+square&ie=UTF-8&oe=UTF-8&gws_rd=ssl
October 31, 2014

Genetics
I agree with you. Possibly that is a typo on the web page.
October 31, 2014

Genetics
https://www.google.com/search?client=safari&rls=en&q=Punnett+square&ie=UTF-8&oe=UTF-8&gws_rd=ssl
October 31, 2014

statistics
Z = (score-mean)/SD SD = √variance Insert values and compute.
October 31, 2014

Science
Since this is not my area of expertise, I searched Google under the key words "chemical bonding" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=chemical+bonding&ie=UTF-8&oe=UTF-8&gws_rd=ssl In the future, you can find the ...
October 31, 2014

statistics
Is this your book's rule? 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.
October 31, 2014

statistics
Don't know what book says, but this is another way. 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. Multiply by 100.
October 31, 2014

Math, Please Help! I don't understand!
37. Add 1 to both sides, then multiply that by a. 39. Multiply both sides by 3, then divide by π and r^2.
October 31, 2014

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

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