Sunday

December 21, 2014

December 21, 2014

Total # Posts: 18,873

**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
*April 16, 2014*

**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.
*April 16, 2014*

**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…..
*April 16, 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. Find table in the back of your statistics text labeled something like "...
*April 16, 2014*

**statistics**

0 0.05 1 0.10 2 0.15 3 0.35 4 0.20 5 0.10 6 0.05
*April 16, 2014*

**statistics**

A statistic is a measure on a sample, while a parameter is a measure on the whole population.
*April 16, 2014*

**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.
*April 15, 2014*

**algebra**

Right!
*April 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. A statistic is a measure on a sample, while a parameter is a measure on a ...
*April 15, 2014*

**statistics**

Z = (score-mean)/SD Fill in the known values and solve for the unknown.
*April 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 your later post.
*April 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.
*April 15, 2014*

**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 = ?
*April 15, 2014*

**reading (?)**

None given. You cannot copy and paste here.
*April 15, 2014*

**Math**

7xy + 4xy + x + y - 27 = 11xy + x + y - 27
*April 15, 2014*

**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
*April 15, 2014*

**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.
*April 15, 2014*

**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)/...
*April 15, 2014*

**statistic**

Graph it out to see what type of distribution you get.
*April 15, 2014*

**statistics**

99% = mean ± 2.575 SEm SEm = SD/√n "mean for this group" = sample mean
*April 15, 2014*

**Elementary Algebra**

28 + .22m = 29 + .17m Solve for m.
*April 15, 2014*

**science**

Friction
*April 15, 2014*

**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
*April 15, 2014*

**Psy**

What aspects of the environment are you considering?
*April 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 your later post.
*April 14, 2014*

**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.
*April 14, 2014*

**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...
*April 14, 2014*

**Planets- I Love Space!**

gravity?
*April 14, 2014*

**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?
*April 14, 2014*

**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 ...
*April 14, 2014*

**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...
*April 14, 2014*

**statistics (?)**

Insufficient data.
*April 14, 2014*

**statistics**

If you math is correct, I agree.
*April 14, 2014*

**Algebra help PLEASE?**

Google "combinations and permutations."
*April 14, 2014*

**math**

No alternatives given. Cannot copy and paste here. 99% = mean ± 2.575 SEm SEm = SD/√n You do the math.
*April 14, 2014*

**Psy270**

What behavior changes were noted? Was Clara happy about going to preschool previously? Did a specific traumatic event occur at the school? Depending on the answers to these questions, they may lead to determining other questions.
*April 13, 2014*

**Psy270**

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. Please only post your questions once. Repeating posts will not get a quicker response. In ...
*April 13, 2014*

**math**

Section 1 can be either 36 or 49 sq. ft. Choose one and then work for Section 2. We cannot put a grid on this post.
*April 13, 2014*

**Math help**

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. http://www.mathsisfun.com/data/correlation.html
*April 13, 2014*

**math**

How can we help you?
*April 13, 2014*

**Science**

I thought I answered this before. Plant cells are different from animal cells. Since this is not my area of expertise, I searched Google under the key words "Plant animal cell parts" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=...
*April 13, 2014*

**SCI 207**

You cannot copy and paste here.
*April 13, 2014*

**Algebra**

First of all, it is cubed rather than "squared." It would be best for you to draw a diagram to answer these questions. Only the 3" cubes at the corners will have 3 yellow sides. With 3" cubes, that will leave 6" by 6" by 6" in the center with...
*April 12, 2014*

**Cultural Anthropology Help please!!!**

Since this is not my area of expertise, I searched Google under the key words "subsistence strategies anthropology" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=subsistence+strategies+anthropology&ie=UTF-8&oe=UTF-8 In the future...
*April 12, 2014*

**Epi**

As long as the data is only generalized to women, gender is not a confounder. Generalized to all people, it is.
*April 12, 2014*

**Statistic**

If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. 4/52 * (4-1)/52-1) * (4-2)/(52-2) = ?
*April 12, 2014*

**alegebra**

-12v + 16 - 2 = 13 - 12v Equation is unsolvable. Adding 12v to both sides eliminates the unknown.
*April 12, 2014*

**Statistics**

(A) SEm = SD/√n (B) Normal (C, D, E) Z = (score-mean)/SEm 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 11, 2014*

**Statistics**

99.44% = mean ± 1.99 SD
*April 11, 2014*

**Science**

Animal cells differ from plant cells.
*April 11, 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 scores.
*April 11, 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 and their corresponding Z scores. Enter the relevant data in the above equation and calculate the score.
*April 11, 2014*

**statistics**

Z = (score-mean)/SD Compare the Z scores for both methods for each question. a. Method A, Z = 0, Method B, Z = -2 Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportions/probabilities related to ...
*April 11, 2014*

**statistics; emergency please help me**

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.
*April 10, 2014*

**Soc**

http://drdavespsychologypage.homestead.com/Prejudice__Us_vs_Them.pdf
*April 10, 2014*

**Science**

I would agree.
*April 9, 2014*

**math**

If there are 9 left over from 3 rows and 2 left over from 4 rows, each row must seat 9-2 = 7 pupils So, 7*4 +2 = ? Or, 7*3 +9 = ?
*April 9, 2014*

**Math**

130 * .23 = ?
*April 8, 2014*

**Math**

"complement of 4" is the probability of 4 NOT occurring.
*April 8, 2014*

**Math**

With out further data, I would say they are not equal.
*April 8, 2014*

**health**

http://en.wikipedia.org/wiki/Methadone
*April 8, 2014*

**math**

Speed = 65 miles per hour
*April 8, 2014*

**ap biology**

Since this is not my area of expertise, I searched Google under the key words "barriers to plasmid acquisition" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=barriers+to+plasmid+acquisition&ie=UTF-8&oe=UTF-8 In the future, you ...
*April 8, 2014*

**science**

Since this is not my area of expertise, I searched Google under the key words "human gametogenesis male vs. female" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=human+gametogenesis+male+vs.+female&ie=UTF-8&oe=UTF-8 In the future...
*April 8, 2014*

**statistics**

If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. a. .39^2 = ? b. .39 * (39-1)/(100-1) = ?
*April 7, 2014*

**math**

n + 7p = 5.55 3n + 2p = 12.28 Multiply first equation by 3, then subtract one equation from the other. 3n + 21p = 16.65 19p = 4.37 You should be able to take it from here.
*April 7, 2014*

**Math**

218/245 * 360º = ?
*April 7, 2014*

**math**

A. Substitute the numbers for x and calculate for y. B. Substitute the $62 for y and solve for x.
*April 7, 2014*

**pure liquid (?)**

What kind of liquid are you referring to? Water? Alcohol? Mercury?
*April 7, 2014*

**math**

πd * 5 = 3.14 *16 * 5 = 251.2 Yep!
*April 7, 2014*

**math**

There are many ways, square with 10m sides, rectangle 2m by 18m, etc….
*April 7, 2014*

**COM 200**

Jargon
*April 7, 2014*

**Math**

It would depend on how you were measuring the temperature. There are two factors operating here. First, the water does lose heat. Second, the body adapts to the temperature, so even without losing heat, the water does not seem as hot. If only a thermometer is being used, that ...
*April 7, 2014*

**Legal needs help**

Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question.
*April 7, 2014*

**math**

We cannot help unless you state the specific problem.
*April 7, 2014*

**Stats**

95% = mean ± 1.96 SEm SEm = SD/√n
*April 6, 2014*

**statistics**

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 6, 2014*

**Math (?)**

It would help if you proofread your questions before you posted them. Insufficient data.
*April 6, 2014*

**science (?)**

What four variables?
*April 6, 2014*

**Child Psychology**

During maturation, the muscles for fine movements develop later, proximodistal development.
*April 6, 2014*

**biology**

The parents' genotypes are Bw and ww. Use a punnett square. https://www.google.com/search?client=safari&rls=en&q=punnett+square&ie=UTF-8&oe=UTF-8
*April 6, 2014*

**science (?)**

What four variables?
*April 6, 2014*

**science**

Have the solar cell computerized to change its angle along with the sun.
*April 6, 2014*

**Psychology**

Rather than "proved or disproved," I would say "supported or contradicted." http://www.psychologytoday.com/blog/the-scientific-fundamentalist/200811/common-misconceptions-about-science-i-scientific-proof I would say 4.
*April 5, 2014*

**Math (?)**

Measure them with ruler or measuring tape? Insufficient data to answer second question.
*April 5, 2014*

**math (?)**

No figure given. Cannot copy and paste here.
*April 5, 2014*

**statistics**

Is the distribution normal, positively skewed or negatively skewed? The average (whichever) rounds to 2. The mean is most influenced by deviant scores, so it would be the lowest in a negatively skewed distribution, having relatively more scores above it. The mode would be ...
*April 5, 2014*

**6th Grade Science - Help**

No, Goggle each of your choices.
*April 5, 2014*

**mathematics**

4 * 60 = 240
*April 5, 2014*

**science**

Agree
*April 4, 2014*

**Business statistics**

If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. .67^3 = ?
*April 4, 2014*

**science**

I would say d.
*April 4, 2014*

**science**

With the word, "not," I would say b.
*April 4, 2014*

**algebra**

Unable to tell with the equation arranged the way it is.
*April 4, 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 scores.
*April 4, 2014*

**Science**

Since this is not my area of expertise, I searched Google under the key words "virus structure function" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=virus+structure+function&ie=UTF-8&oe=UTF-8 In the future, you can find the ...
*April 4, 2014*

**Math (?)**

No wall shown. Cannot copy and paste here.
*April 4, 2014*

**Algebra 2**

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 with the first problem. I assume that you want the proportion ...
*April 4, 2014*

**Math (?) **

What squares? What is your question?
*April 4, 2014*

**Math**

a. 400 + 100 + 2n = 7n b. 400 + 100 + 2n = 6n Solve for n.
*April 4, 2014*

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