Friday
July 3, 2015

Posts by PsyDAG


Total # Posts: 20,003

data
What is your question?
May 8, 2015

statistic
Lacking data. How many green and white balls are in the urn? (green/total)^4 = ?
May 8, 2015

maths
Use Pythagorean theorem. 22^2 + 120^2 = diagonal^2
May 8, 2015

math
G = 11 W = J/2 G + J + W = 26 11 + J + J/2 = 26 Solve for J.
May 7, 2015

math (oops)
Sorry, my goof. Ms. Sue is right.
May 7, 2015

math
(2*28.5*10.5)/4 = ?
May 7, 2015

Science
Since this is not my area of expertise, I searched Google under the key words "plant photosynthesis process" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=plant+photosynthesis&ie=UTF-8&oe=UTF-8&gws_rd=ssl#rls=en&q=plant+...
May 7, 2015

Math discussion
The key word is "you" rather than us. https://www.google.com/search?client=safari&rls=en&q=meteorological+predictions&ie=UTF-8&oe=UTF-8&gws_rd=ssl
May 7, 2015

biology
Since this is not my area of expertise, I searched Google under the key words "heart potentials initiated" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=heart+potentials+initiated&ie=UTF-8&oe=UTF-8&gws_rd=ssl In the future, you ...
May 7, 2015

Science (?)
What two tissue types?
May 7, 2015

Stats
Ho: mean = 370 Ha: mean > 370 Z = (score-mean)/SEm = ? SEm = SD/√n
May 6, 2015

math
Range is approximately 25,000 to 50,000. Divide that range into 5 intervals. Does that approximate a bell-shaped curve?
May 6, 2015

Math
Make a frequency distribution of the finish times. Does that approximate a normal, skewed or bimodal distribution?
May 6, 2015

Statistics
Ho: mean ≤ 90 Ha: mean > 90 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 elated to the Z score. Is the smaller area ≤ .10?
May 6, 2015

biology
Since this is not my area of expertise, I searched Google under the key words "evolutionary development of lungs" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=evolutionary+development+of+lungs&ie=UTF-8&oe=UTF-8&gws_rd=ssl In the...
May 5, 2015

Science
Since this is not my area of expertise, I searched Google under the key words "Minnesota earthquakes" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=Minnesota+earthquakes&ie=UTF-8&oe=UTF-8&gws_rd=ssl In the future, you can find ...
May 4, 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 between those two Z scores.
May 4, 2015

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 "...
May 4, 2015

Maths
2(12+6) + 2(7+6) = ?
May 4, 2015

science
Humans have a heart the pumps the water and nutrients.
May 3, 2015

Math
">" symbol is done with period key and shift. (x-1) > 5 Add one to both sides.
May 3, 2015

Science
Tides are the rise and fall of sea levels caused by the combined effects of gravitational forces exerted by the Moon, Sun, and rotation of the Earth.
May 3, 2015

Math
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.
May 3, 2015

class
Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question. See your previous post.
May 3, 2015

Statistic
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.
May 3, 2015

psychology
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. Multiply each by 100 to get percentages. I assume you can find the table. We do not do your homework...
May 3, 2015

ANT101
For work settings, I would pick participant observation.
May 2, 2015

math
If s/he intends to paint a 60 ft^2 mural, then it could be 6 by 10, 3 by 20, 4 by 15 or 5 by 12. What are the dimensions of the wall?
May 2, 2015

Sociology
CS is what causes the learned response, and the response is the CR.
May 1, 2015

math
5/1 = x/8.5 Solve for x.
May 1, 2015

Math
What is your question?
May 1, 2015

Math
What are your choices? Cannot copy and paste here.
May 1, 2015

math
What expressions? 2(4a) + 2l + 2w
May 1, 2015

Math
Lacking data. Cannot copy and paste here.
May 1, 2015

Math
Area = B * H Perimeter = 2B + 2H
May 1, 2015

Science
Just distribute.
April 30, 2015

Math
Don't even know the old difference. Lacking data.
April 30, 2015

Math
Disagree. Drawing the relationship will give you a better idea.
April 30, 2015

math help me
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.
April 30, 2015

cultural diversity
Since this is not my area of expertise, I searched Google under the key words "metalinguistic strategy" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=metalinguistic+strategy&ie=UTF-8&oe=UTF-8&gws_rd=ssl In the future, you can ...
April 30, 2015

math: 68-95-99.7 rule
It would help if you proofread your questions before you posted them. "Between $150,000" and what? 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...
April 30, 2015

Science please check answers
Agree with last two, but not the first. Do a Punnett square.
April 30, 2015

math
D = 7N .10D - .05N = 5.85 Substitute 7N for D in the second equation and solve for N. Insert that value into the first equation to solve for D. Check by putting both values into the second equation.
April 29, 2015

statistics HELP
Area below Z = -3.7 is .0001. The probability of -5 would be infinitesimal.
April 29, 2015

Math
What rectangle? Cannot copy and paste here.
April 29, 2015

Math
If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. c. .9 * .9 * (1-.9) = ? d. .9^3 = ?
April 29, 2015

Math
Since x+2 = 0 give you x = -2 Since x-3 = 0 give you x = 3 I would assume (x+2)(x-3). Do you have typos?
April 29, 2015

math
What two whole numbers will multiply to give you 48?
April 29, 2015

MATH
They ARE independent. The previous pick does not influence subsequent picks only their probability. b. 4/9 * 3/(9-1) * 2/(9-2) = ?
April 28, 2015

5th grade math
15000/7 = ? 14000/7 = ?
April 28, 2015

Math
With you answer to 2, 3 would be correct. 4. You don't have an "estimate" to two decimal places. An estimate is just a close guess. My "estimate" would be 30 or 31. 5. If 4 is correct, so is this. 7. right
April 28, 2015

Math
1. For a square, area = height^2, so height = √area. It needs to be < 3. Do you mean 2.8? The decimal point makes a big difference. 2. 1 meter = 3.28 feet, therefore 2.8m = ? ft 3. Wrong answer for 2 makes this wrong. 4. √950 ≠ 30.61 5. Wrong answer for 4 ...
April 28, 2015

MATH
a. If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. P(white) = 4/9 * 3/8 * 2/7 = ? P(red) = 3/9 * 2/8 * 1/7 = ? P(black) = 0, since there are only 2 blacks Either-or ...
April 28, 2015

math
100(.50/2.30) = ?
April 28, 2015

Algebra
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.
April 28, 2015

Algebra
2S = J 30J + 17S ≤ 500 Substitute 2S for J in the second equation and solve for S. Insert that value into the first equation to solve for J. Check by putting both values into the second equation.
April 28, 2015

algebra
If grandma's house = x, then the apartment building = x + 12 x + 12 + 4 = 2(x+4) Solve for x.
April 28, 2015

Math Check
If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. < 30 = 1-29 29/40 * (29-1)/(40-1) ≠ 9/16
April 28, 2015

math
What is your question? A square has 4 sides.
April 28, 2015

BIO HELP PLEASE!!!
It depends on the type of infection. For example, with HIV, none would be infected.
April 27, 2015

Algebra
3C + 4M = 12.50 3C + 2M = 8.50 Subtract the second equation from the first and solve.
April 27, 2015

math
Substitute 18-q for n in the second equation and solve for q. Insert that value into the first equation to solve for n. Check by putting both values into the second equation.
April 27, 2015

math
What equations?
April 27, 2015

algebra
When multiplying/dividing, exponents are added/subtracted respectively. 8 - (-5) = ?
April 27, 2015

English
Disagree.
April 27, 2015

psychology
I would say D.
April 27, 2015

Statistics
Probability of getting either one or two good batteries. Either-or probabilities are found by adding the individual probabilities. If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual ...
April 26, 2015

math
For a square, Length squared = area or Length = √area
April 26, 2015

Statistics
Out of 36 possibilities, you could get: 6, 3 3, 6 4, 5 5, 4
April 25, 2015

statistics
Since you say "distribution of IQ scores is NOT normally distributed," bell-shaped graphical does not represent it. Therefore, cannot make estimates. If it was normal, mean = mode = median.
April 25, 2015

geometry
With 45º on one side, the other angle would be 180º-90º-45º = 45º Altitude = base = 4 Use Pythagorean theorem. 4^2 + 4^2 = b^2
April 25, 2015

statistics
Calculate mean. Z = (score-mean)/SEm = (25-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. Would you consider that ...
April 24, 2015

Psychology
1) E 2) B
April 24, 2015

Math, Statistics
Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability (.40) and the related Z scores. Or you could use this source: http://davidmlane.com/hyperstat/z_table.html
April 24, 2015

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 you later post.
April 24, 2015

Math
No graph. You cannot copy and paste here.
April 24, 2015

Needs Excel help
Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question.
April 24, 2015

Statistics
I assume you want the value of x. mean = ∑x/n 10 = (4+x+1+2+5)/5 Solve for x.
April 23, 2015

Psychology 202
If you mean achieving higher status in occupations, I would say true.
April 23, 2015

statistics
They are inversely related.
April 23, 2015

Statistics
I assume you are only concerned with the apples being too big to fit in the box. Ho: mean = 4.1 Ha: mean > 4.1 Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability (.05) and its ...
April 23, 2015

Math
C = 2πr = 18π 90π/18π = ?
April 22, 2015

Life science
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
April 22, 2015

Lumuka secondary school
Assuming that you have a school counselor, have him/her give you interest tests to help clarify job preferences.
April 22, 2015

Statistics
a) Z = (score-mean)/SD b, c) 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 proportions/probabilities related to the Z scores.
April 22, 2015

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. However, I will start you out. Ho: mean = 520 Ha: mean > 520 Find the mean first = sum of...
April 22, 2015

Statistics
Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability (.40) and its Z score. -Z = (score-mean)/SD = (10,000-mean)/500
April 22, 2015

Statistics
Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability (.02) and its Z score.
April 22, 2015

Statistics
Is Alisha also Anonymous? If so, see your later post. 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.
April 22, 2015

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. However, I will start you out. Ha: µ < 30 Z = (score-mean)/SEm SEm = SD/√n
April 22, 2015

Maths
Since this is not my area of expertise, I searched Google under the key words "inventor of simultaneous equations" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=inventor+of+simultaneous+equations&ie=UTF-8&oe=UTF-8&gws_rd=ssl In ...
April 21, 2015

genetics
Since this is not my area of expertise, I searched Google under the key words "genetic eye color" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=genetic+eye+color&ie=UTF-8&oe=UTF-8&gws_rd=ssl In the future, you can find the ...
April 21, 2015

genetics
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.
April 21, 2015

math
Data missing.
April 20, 2015

math
5º + 6º + 0º = ?º
April 20, 2015

film
What special effects do you want to create?
April 20, 2015

Physics needs help
Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question.
April 20, 2015

HELP please
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. Indicate your specific subject in the "School Subject" box, so ...
April 20, 2015

help please? :( math
Online "^" is used to indicate an exponent, e.g., x^2 = x squared. agree.
April 20, 2015

math please help 8th grade
If you only have one equation, how can you compare slopes?
April 20, 2015

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