Thursday
April 24, 2014

Posts by PsyDAG


Total # Posts: 17,540

Math
Let m = math time, then English = 3m and science = 2m. m + 3m + 2m = 120 minutes Solve for m, then 2m.

science
How about feathers, wings and beaks? https://www.google.com/search?client=safari&rls=en&q=bird+characteristics&ie=UTF-8&oe=UTF-8

math (?)
Same thing here.

math (?)
"jpg" indicates you are copy and pasting. Can't do it here.

Science
https://www.google.com/search?client=safari&rls=en&q=Dilithium&ie=UTF-8&oe=UTF-8 What conclusion do you come to?

Biology help
We know that certain genes have specific effects on one's phenotype. However, Outside of containing DNA, we do not know how they cause these effects. https://www.google.com/search?client=safari&rls=en&q=How+does+a+gene+determine+a+trait%3F&ie=UTF-8&oe=UTF-8

math
It would help if you proofread your questions before you posted them. Millimeters is a length unit rather than volume. Even if this was changed to milliliters, the question is still unclear.

Science
Merely by writing these sentences will help you to remember the material you have written. Information in the following articles might also help. http://drdavespsychologypage.homestead.com/Be_Here_Now_.pdf http://drdavespsychologypage.homestead.com/Learning_Requirements.pdf ht...

maths
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?

Statistics and probability
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 df = n - 1, where n = number of cells Look up value in X^2 table in the back of your te...

Algebra II
Anything times 1 or to the first power is itself. Unless you have typos, here is what I get: (2x)^3 + 12x^2 * (-5y) + 6x * 25y^2 - 125y^3 = 8x^3 - 60x^2y + 150xy^2 - 125y^3

Algebra II
If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. (12/15)^7 * (3/15)^3 = ?

math
I assume it is a right triangle. Area = 48 = 1/2 hb 96 = hb Set one variable as multiple of 2 and see if the same multiple of 3 will multiply to = 96. Pythagorean theorem: 8^2 + 12^2 = Hyp^2 64 + 144 = 208 = Hyp^2 √208 does not match any of your choices. 14 < √2...

Stats.
What about the women that tested negative for cancer?

statistics (?)
No table. You cannot copy and paste here.

math
If c = "additional number off (sic) customers," then each teller will serve "c - 16 OVER 4" [more clearly written (c-16)/4] additional customers.

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 your later post.

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. Quit using different names.

biology
B

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

Science
https://www.google.com/search?client=safari&rls=en&q=increase+the+magnetic+field+around+a+wire%3F&ie=UTF-8&oe=UTF-8

genetics
1. Mate with an Ll. If about 25% offspring are short-winged, it is also Ll. If none, it is LL. 2. If dominant, only one gene is needed for the disorder. If mom is heterozygous, her chances are 50%, if homozygous, certainty. 3. Right. If both parents are only carriers for the r...

Algebra
60 - 60/3 - 60/4 = ?

Probability (?)
Five defects out of how many? What size sample?

statistics
95% = mean ± 1.96 SEm SEm = SD/√n 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 = sq...

Math
If the scale does not continue to slide, 20 * 10 = ?

Math
L > 3s + 4

math
x/17.5 = 12/5 Solve for x.

math
Convert feet to inches, then divide. (11*12*14*12)/(4*4) = ?

statistics (?)
Lacking data.

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

math (?)
What is your question?

Evolution question - HELP!
Since this is not my area of expertise, I searched Google under the key words "Niles Eldredge change" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=Niles+Eldredge+change&ie=UTF-8&oe=UTF-8 In the future, you can find the informati...

Biology
If you are talking about the undigested food, it is chyme. If you mean the valve, it is the pyloric valve. You could have checked your answer more quickly by Googling it.

Psychological and Psychophysiological Stress Disor
I don't know if they are all undiagnosable, but war, rape, earthquake, tornado, explosions, severe physical attack, kidnapping….

Ollu
How close will you be standing to the mirror?

statistics
Why are two of the scores 35? Typo? Z = (score-mean)/SD Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the percentiles related to the Z scores. T = 50 + 10Z

statistics
We cannot show frequency distribution here. Arrange score in order of value. The frequency of each score will determine its value on the ordinate (y-axis).

statistics
Since this is not my area of expertise, I searched Google under the key words "contribution of computer in the development of science and technology" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=contribution+of+computer+in+the+d...

Math
What do the widget manufacturers want to know? Production levels of widgets? Standardization of widgets? Sales of widgets?

math
From the way you have your last equation written "square root 3 /2" Looks like √(3/2). It should be written (25√3)/2. The brackets make the meaning clearer. The square root sign (√) can be obtained by using "v" and "alt/option" k...

math
Use Pythagorean theorem to find other leg. h^2 + b^2 = Hypotenuse^2 h^2 + (5√3)^2 = 100 Solve for h. Area = 1/2 hb Insert values and solve for area.

math
-4x-4y=12 Mutliply by 4. -16x - 16y = 48 Second equation: 16y=-16x-48 Transpose. 16x + 16y = -48 Multiply by -1. -16x - 16y = 48 What does that tell you?

maths
x = included, y = bring own y = 30 - x 5x + 3y = 110 Substitute 30-x for y in second equation and solve for x. Insert that value into the first equation and solve for y. Check by inserting both values into the second equation.

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.

statistics
Ho: µ = sample mean

statistics
Z = (score-mean)/SD Insert the known values and solve for the unknown.

Psychology
interaction?

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.

sociology
I would tend to go with "not falsifiable." This theory is NOT "based on empiricism," since "she is unable to produce an individual with above chance predictions."

Statistics
Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability (.05) = Z = 1.645 90% = mean ± 1.645 SEm SEm = SD/√n

Science
In the chromosomes of the egg and sperm.

Algebra
Divide both numerator and denominator by 2.

Algebra
8/2a

Stats
95% = mean ± 1.96 SEm SEm = SD/√n

statistics
If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. both even number = 3/6 * 3/6 = ? both odd = same different = 1/6 * 5/6 = ?

statistics (?)
What follows? You cannot copy and paste here.

Statistics
http://drdavespsychologypage.homestead.com/Two___Two_____four.pdf

Stats
Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability of Z = -1.77. Is the probability in the smaller area < .05?

biology 5
B

biology 3
https://www.google.com/search?client=safari&rls=en&q=punnett+square&ie=UTF-8&oe=UTF-8

science
Since this is not my area of expertise, I searched Google under the key words "when the first vertebrates evolved" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=when+the+first+vertebrates+evolved&ie=UTF-8&oe=UTF-8 In the future, ...

Math
right

Psychology
https://www.google.com/search?client=safari&rls=en&q=Psychological+theories+of+behavior&ie=UTF-8&oe=UTF-8 After reviewing the various models/theories, you have to decide which you think is most effective.

psy/310
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.

genetics
Since this is not my area of expertise, I searched Google under the key words "color dominance in pea plants" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=color+dominance+in+pea+plants&ie=UTF-8&oe=UTF-8 In the future, you can fi...

BIOLOGY 12
https://www.google.com/search?client=safari&rls=en&q=right+atrium+to+the+lungs&ie=UTF-8&oe=UTF-8

statistics
11, 12. A statistic is a measure on a sample, while a parameter is a measure on a population. 13. SEm = SD/√n = SEm = 12/√75 = ? 14, 15. Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the pr...

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 previous post.

genetics
Since sister is ww, must have received w from each parent. Both parents would be Ww or one Ww and the other ww.. Try a punnett square. https://www.google.com/search?client=safari&rls=en&q=punnett+square&ie=UTF-8&oe=UTF-8

Statistics
Their admission of speeding. 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.

psychology
Growth in height vs. weight, golf score vs. financial winnings (negative), education level vs. later earnings, distance from viewer vs. apparent image size (negative), the height from the floor of two ends of a rope strung over a suspended pulley (negative), etc…..

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. Find table in the back of your statistics text labeled something like "a...

statistics
0 0.05 1 0.10 2 0.15 3 0.35 4 0.20 5 0.10 6 0.05

statistics
A statistic is a measure on a sample, while a parameter is a measure on the whole population.

statistics
SEm = SD/√n 10 = ± Z (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 score.

algebra
Right!

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. A statistic is a measure on a sample, while a parameter is a measure on a pop...

statistics
Z = (score-mean)/SD Fill in the known values and solve for the unknown.

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.

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.

Algebra II
If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. (12/15)^7 * (3/15)^3 = ?

reading (?)
None given. You cannot copy and paste here.

Math
7xy + 4xy + x + y - 27 = 11xy + x + y - 27

Statistics
Look up the Z score on that table. You are looking for probability of Z score less than (<) -1.45. You could also try: http://davidmlane.com/hyperstat/z_table.html

Statistics
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.

statistic
Find the means 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 = (mean1 - mean2)/stan...

statistic
Graph it out to see what type of distribution you get.

statistics
99% = mean ± 2.575 SEm SEm = SD/√n "mean for this group" = sample mean

Elementary Algebra
28 + .22m = 29 + .17m Solve for m.

science
Friction

statistics
90% confidence interval leaves .05 on each side. Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability (.05) and its Z score. 90% = mean ± 1.645 SEm SEm = SD/√n

Psy
What aspects of the environment are you considering?

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.

statistics
A negative Z score does not necessarily indicate anemia. It would have to be significantly low, P < .05, Z < -1.96, to be considered anemic.

math
First of all, the range is not a measure of central tendency. The mean acts as a fulcrum (balance point) for the distribution, therefore outliers on one side will draw the mean out to that side. In other words, the distribution is significantly skewed. In a skewed distribution...

Planets- I Love Space!
gravity?

Math (?)
Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question. Without more specifics, we don't understand either. What is your question?

statistics
a. Z = (score-mean)/SEm SEm = SD/√n Solve Z for scores of 502±10. Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability between mean and Z scores. b and c. Use similar p...

Algebra help please!
First of all, you need to specifically define what you mean by "fruit and vegetables" and what constitutes a "serving." For example, does apple/orange/grape Juice qualify? If so, how much drink qualifies as a serving? How many grapes make up a serving? Once...

Pages: 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | Next>>

Search
Members