Wednesday
September 17, 2014

Posts by PsyDAG


Total # Posts: 18,181

Math-Algebra
Pythagorean theorem for right triangle: a^2 + b^2 = hypotenuse^2 6^2 + 4^2 = ?
October 22, 2013

Science
Can you do a Punnett square? https://www.google.com/search?client=safari&rls=en&q=punnett+square+calculator&ie=UTF-8&oe=UTF-8
October 22, 2013

math
Assuming that the 7 1/4 is in pounds: 8 * 7.25 * 6 = ?
October 21, 2013

math
http://www.youtube.com/watch?v=htN1CDwo-VY
October 21, 2013

algebra
16/2 = 8 8/2 = 4 4/2 = 2 2/2 = 1
October 21, 2013

math
Twelve months in a year. 109,782/12 *2/3 = ?
October 21, 2013

MATHS
Online, “*” is used to indicate multiplication to avoid confusion with “x” as an unknown. I don't see a "fast way" to solve your question from the previous pattern. 49 = 7 * 7 55 = 5 * 11 26 = 13 * 2 7 * 11 * 13 * 2 = 2002 That still has to be...
October 21, 2013

math >.<
Your original map is 3 by 5. 3/5 =x/8 Solve for x, then 2x + 2(8) = perimeter
October 21, 2013

algebra
Regardless of what he donated, Ethan raised $125.25 - $20 = $105.25
October 21, 2013

Statistics
A. Use same process as previous post. B. Now we are talking about a distribution of means rather than raw scores. 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 ...
October 21, 2013

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 for the various Z scores.
October 21, 2013

prealgebra
Original price - $50 = what he paid
October 21, 2013

math
The price of 4 digital = one video. 5 digital + 3 video = 3213 Substitute 4d for v in second equation and solve for d. 5 digital + 3(4 digital) = 3213 Insert that value into the first equation and solve for v. Check by inserting both values into the second equation. Since John...
October 21, 2013

science
The seasons of the year?
October 20, 2013

science
Rotation of the earth.
October 20, 2013

Statistics
As I said before, it would depend on the size of the samples to see if the difference was significant. Based on three pairs, it probably would not be significant. Based on 1000 pairs, the difference probably would be significant. It does not make a different value right or wrong.
October 20, 2013

Algebra
You need two different values to find the coordinates, not just one.
October 20, 2013

Statistics (?)
What is your question?
October 20, 2013

Statistics
Right or wrong cannot be judged. To find out if they are significantly different, the size of the samples needs to be know.
October 20, 2013

Statistics
1.24($13.50*2080) = ?
October 19, 2013

Statistics
Since 15 minutes = .25 or 1/4 hour: 1424/4 = ?
October 19, 2013

biology need help
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 previous post.
October 18, 2013

Algebra 1
2/3h + 2 = h - 12 Solve for h.
October 18, 2013

science
If short is recessive, 25%. If short is dominant, 75%. https://www.google.com/search?q=punnett+square&client=safari&rls=en&tbm=isch&tbo=u&source=univ&sa=X&ei=N7hhUoCNNqi4yAGL54CYBw&ved=0CEAQsAQ&biw=1049&bih=834&dpr=1
October 18, 2013

Science (?)
Make up the what?
October 18, 2013

Math
Corrrect.
October 18, 2013

math
Why would you multiply something b y 1? Is there a typo? 96.050 * 10 = ?
October 18, 2013

biology
What don't you understand? I'll take a guess. If the independent variable was various amounts of a drug being given, then this would need to be measured along with the dependent variable. If the independent variable was either the presence or absence of a variable, ...
October 18, 2013

biology
Yes to all. However, when the independent variable is changed, it might also be measured to compare to the changes in the dependent variable.
October 18, 2013

science
If scientists do not agree with each other, they may replicate experiments to check the conclusions.
October 18, 2013

Science
Animals and protozoa do not have cell walls.
October 17, 2013

biology
Since this is not my area of expertise, I searched Google under the key words "sequence of the stop codon" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=sequence+of+the+stop+codon&ie=UTF-8&oe=UTF-8 In the future, you can find the...
October 17, 2013

Statistics
Z score is your score in arms of standard deviations. Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability (.6140) related to the Z score. Are you assuming that the scores are ...
October 17, 2013

Science
An independent variable 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 the independent ...
October 17, 2013

Science (?)
More information needed. Do the rabbits have the same parents? Are the genes for either color dominate or recessive?
October 17, 2013

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 your later post.
October 17, 2013

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.
October 17, 2013

algebra
Minus times minus = a plus, minus times a plus = a minus. -26x + 10y - 75
October 17, 2013

algebra (?)
check what?
October 17, 2013

math (?)
What figure?
October 16, 2013

Statistics
See your later post.
October 16, 2013

math
(2x + 4y) * 3y = 6xy + 12y^2 (2x + 4y) * 8x = 16x^2 + 32xy Combine.
October 16, 2013

Math (?)
Your information is not accurate. Online "^" is used to indicate and exponent, e.g., x^2 = x squared. 14 r^5 would not give a decimal.
October 16, 2013

statistics
Either-or probabilities are found by adding the individual probabilities. .23 + .05 = ?
October 16, 2013

statistics
If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. .6 * (1-.6) = ?
October 16, 2013

PSY
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 16, 2013

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 15, 2013

psychology
What are your choices? http://www.hcp.med.harvard.edu/node/1471
October 15, 2013

Math
52.6 * 9 = 473.4 = 4.734 * 10^2
October 15, 2013

science (?)
Where is your community? Wood might be one.
October 14, 2013

Psychology
D.
October 14, 2013

biology
Since both genes (dominant) from one parent are for normal development, the chances for any child are 50% to be a carrier, but none will have the disease.
October 14, 2013

Statistics
A. Chi square B. Ho: Smoking is not related to SES. H1: Smoking is related to SES. C. Use the Chi-square (X^2) method. X^2 = ∑ (O-E)^2/E, where O = observed frequency and E = expected frequency. ∑ = sum of all the cells. E = (column total * row total)/grand total ...
October 14, 2013

Science
Mutations allowed the bacteria to develop an immunity to the drug.
October 14, 2013

statistics
Use same process as indicated in previous post.
October 14, 2013

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.
October 14, 2013

statistics
Which value (1 or 7) is the high value? A, B, C. Z = (score-mean)/SD D. 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.
October 14, 2013

Biology
Even if the daughters are carriers, the dominant genes from the father will keep the characteristics from being expressed in the phenotype.
October 14, 2013

biology 2 (?)
What system did you pick?
October 14, 2013

statistics
No, decrease. Mean = ∑x/n
October 13, 2013

STAT
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.
October 13, 2013

STAT
If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. http://drdavespsychologypage.homestead.com/Odds__Figuring.pdf
October 12, 2013

STAT
Use process from previous post.
October 12, 2013

STAT
Use same process as in previous post.
October 12, 2013

STAT
Z = (score-mean)/SD variance = SD^2 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.
October 12, 2013

STAT
Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability (.04) for your Z score. Z = (score-mean)/SD
October 12, 2013

STAT
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.
October 12, 2013

STAT
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.
October 12, 2013

maths
The odd numbers > 1 are 3 and 5 on a die. 2/6 = ?
October 10, 2013

Science
In a restricted space, more gas particles leads to increased air pressure.
October 9, 2013

English
Have ever seen the statue of "The Thinker"?
October 9, 2013

Math
Right.
October 9, 2013

math (?)
What frequency table? Math would decrease, while science would increase.
October 9, 2013

math
50 - (18-7) - (37-7) = ?
October 9, 2013

math
Assuming that "all the way around the outside" is the whole perimeter: 2(98) + 2(98/3) = ?
October 9, 2013

Math-Algebra
http://www.direct.gov.uk/prod_consum_dg/groups/dg_digitalassets/@dg/@en/@motor/documents/digitalasset/dg_188029.pdf
October 9, 2013

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.
October 9, 2013

GEN 105 Personality abd Learning styles
We cannot answer questions about you!
October 8, 2013

Psychology
An independent variable 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.
October 8, 2013

Psychology
An independent variable 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. It sounds like a classical experiment.
October 8, 2013

psychology (?)
What are your choices? Is there a stick or other equipment available? Is there another chimp that could cooperate in reaching the bananas?
October 8, 2013

Statistics
SEdiff = √(SEmean1^2 + SEmean2^2) SEm = SD/√n
October 8, 2013

reading
You're welcome.
October 8, 2013

reading
1. wouldn't know ("puzzled all day") 2. doesn't see self as old ("young girl who smiled at him")
October 8, 2013

biology
An independent variable 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 the independent ...
October 8, 2013

algebra (?)
There is no a, b or D shown in the equation. x^2 + 4x + 4 = (x+2)^2
October 8, 2013

Algebra II
If the slope is m in Steve's equation above, what is the position of m in the slope intercept form? That is the value of the slope.
October 8, 2013

6th grade math
Change percent to decimal and multiply. 1. .94 * 43 = 40.42 8. 6/90 = .066667 (convert to percentage by multiplying by 100) 9. 105/.05 = 2100 Your answers seem right, but you can check again by using decimals.
October 8, 2013

psychology
In classical conditioning, the unconditoned stimulus (US) is one which reflexively causes a response. One example is putting something into your mouth causes salivation. In this case the unconditioned response (UR) is the response to a US presented alone, the salivation. A ...
October 7, 2013

statistics (?)
Is the probability the same for all 4? What does the "it" refer to?
October 7, 2013

Math
A. 18/25 = x/9 B. x/100 = 2.64/9 Solve for x.
October 7, 2013

Health
What are you serving? Drinks? Ice Cream? Vegetables? How about Googling the specific substance and adding the key word, "calories," if that is what interests you? For example: https://www.google.com/search?client=safari&rls=en&q=vanilla+ice+cream+calorie+count&ie=UTF...
October 7, 2013

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 7, 2013

algebra 1 (incomplete)
An equation needs an equal (=) sign. Where is yours?
October 7, 2013

Science (?)
The molecular formula for sucrose = C12H22O11. What "starch like above"?
October 7, 2013

Please Help
Indicate your specific subject in the "School Subject" box, along with the specific problem in the content box, so those with expertise in the area will respond to the question.
October 7, 2013

Biology simple question
The wavelengths and amplitudes are what it is designed to measure?
October 7, 2013

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.
October 7, 2013

STAT (?)
What following statements? 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 ...
October 7, 2013

pyschology
You're welcome!
October 7, 2013

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