Sunday

April 26, 2015

April 26, 2015

Total # Posts: 19,729

**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 for the Z score. Multiply by 100.
*October 24, 2014*

**Help Math**

No model. Cannot copy and paste here.
*October 24, 2014*

**ALGEBRA**

99.5/5 = y/3 Solve for y.
*October 24, 2014*

**science**

Since we don't know your life events, we don't know how those apply to you.
*October 24, 2014*

**statistics**

Agree.
*October 24, 2014*

**biology**

sarcomere
*October 23, 2014*

**statistics**

Z = (score-mean)/SD = (73-46)/9 = ? Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability between mean and that Z score.
*October 23, 2014*

**Statistics**

a) Z = (score-mean)/SD Z = (20-25)/10 (do not use SEm = SD/√n) Z = -.5 p = .6915 p*n = ? b) Again, don't use SEm, which is used for distribution of means rather than raw scores. In the Z table, .0559 in the smaller portion gives a Z score of 1.59. c) For this one, ...
*October 23, 2014*

**science!!**

Since the son gets the X from mom, she is heterozygous for that gene, a carrier. The daughter has to get XX, both with hemophilia, one from each parent. That must mean that dad has hemophilia too.
*October 23, 2014*

**Science**

With mitosis, the number of chromsomes double before the cell splits, leavind the daughter cells with the same species number of chromosomes (diploid). This duplication does not occur with meiosis, so the daughter cells have only half the original chromosomes (haploid). I hope...
*October 23, 2014*

**Science**

Double the number of cells with 12 chromosomes. Double the number of cells with 6 chromosomes.
*October 23, 2014*

**Math Help!**

a^2 + b^2 = c^2 36 + 81 ≠ 144
*October 23, 2014*

**Int.science**

Of the two, the line is best.
*October 23, 2014*

**Math**

2x^3*2x^-1 = 4x^2 y^-3*y^-3 = y^-6
*October 23, 2014*

**Science Project: Teeth**

Before the experiment, you would want to research previous data about the variables involved to indicate why you set up the experiment the way you did. The discussion is the last part of the paper and occurs after the experiment is completed.
*October 23, 2014*

**statistics**

Here is how to find the answer: 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 (.10) and its Z score and insert the values into the above equation to find ...
*October 23, 2014*

**celebrating Diversity**

Right
*October 22, 2014*

**science**

If their diet is exclusively on cactus flowers, like the panda and bamboo, I would go with D. If the cacti were the only source on the island, and the diet is not exclusive, I would agree with you.
*October 22, 2014*

**Geometry**

Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question.
*October 22, 2014*

**SBVC**

b = 3h or b/3 = h A = 300 = bh = b*b/3 = b^2/3 300 = b^2/3 Solve for b.
*October 22, 2014*

**PSY202**

https://www.google.com/search?client=safari&rls=en&q=critical+thinking+to+overcome+cognitive+bias+in+online+learning&ie=UTF-8&oe=UTF-8&gws_rd=ssl
*October 22, 2014*

**math**

L = W + 7 198 = LW = W(W+7) Solve for W then L. Perimeter = 2W + 2L
*October 22, 2014*

**PSYCH/SOCIOLOGY!!!**

You could even take both at the same time to give you a running comparison.
*October 22, 2014*

**Math**

Can't do with "a single exponent." Each term has its own exponent. When multiplying terms, you add the exponents. x^4 * y^12
*October 22, 2014*

**health**

No elevators or escalators?
*October 22, 2014*

**guidance**

agree
*October 21, 2014*

**Biology**

Each pregnancy is an independent event. One does not influence the other. Assuming each parent is heterozygous for the recessive gene (otherwise they would have dies at 20 months), the chances for the disorder is 25% for every pregnancy. If the events are independent, the ...
*October 21, 2014*

**math**

Cannot copy and paste here.
*October 21, 2014*

**math**

No chart.
*October 21, 2014*

**Math**

2 + 5 = ? 8 + 2 - 1 = ?
*October 21, 2014*

**Science**

I agree.
*October 21, 2014*

**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 21, 2014*

**guidance**

Frustration is the emotion, while aggression is the behavior.
*October 20, 2014*

**guidance**

Prosocial behavior is designed to help others.
*October 20, 2014*

**math 11**

No diagram. You cannot copy and paste here.
*October 20, 2014*

**Biology**

Since this is not my area of expertise, I searched Yahoo under the key words "structures in all cells" to get these possible sources: https://search.yahoo.com/search?p=structures+in+all+cells&ei=UTF-8&fr=moz35 In the future, you can find the information you desire ...
*October 20, 2014*

**Math HELP!**

agree.
*October 20, 2014*

**Algebra**

2S + 13s = 108 4S + 14s = 144 Multiply top equation by 2 and subtract the second from that product to find s. Insert that s value into either equation to find S.
*October 20, 2014*

**statistics**

How can the answer be incorrect, if there is no answer? Using the Z table in the back of your statistics text labeled something like "areas under normal distribution," use the smaller proportion for a and b. For c, add proportions between Z scores and mean.
*October 20, 2014*

**statistics**

a and b. Z = (score-mean)/SD What were your answers to c and d?
*October 20, 2014*

**maths**

Assuming that each twin received equal portions, 1/8 divided by 2 = ?
*October 20, 2014*

**Health**

agree
*October 20, 2014*

**Algebra: Answer Check**

agree
*October 20, 2014*

**algebra**

D = 4G 5.25G + 6.50D = 906.25 5.25G + 6.50(4G) = 906.25 Solve for G, then D.
*October 20, 2014*

**Algebra**

N = 360-S S + 2N = 460 S + 2(360-S) = 460 Solve for S.
*October 20, 2014*

**Science**

7.33
*October 20, 2014*

**PLZ HELP.( INT. SCIENCE)**

For every numeral that you move to the right with a decimal point, you have another negative power of ten. Online "^" is used to indicate an exponent, e.g., x^2 = x squared. Ten to the minus two power is written 10^-2. This way, it will not be confused with ten minus...
*October 20, 2014*

**Math**

If the first die = 2 or 4, the sum of the two will not = 12. The probability of a 6 = 1/6
*October 20, 2014*

**Algebra**

right.
*October 20, 2014*

**statistics**

What is your answer (guess)?
*October 20, 2014*

**Math**

Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question.
*October 19, 2014*

**Harmon**

Online "^" is used to indicate an exponent, e.g., x^2 = x squared. Online, “*” is used to indicate multiplication to avoid confusion with “x” as an unknown. For each decimal place moved to the right, there is an increase of the negative power of ...
*October 19, 2014*

**Statistics**

Missing data. What is your question?
*October 19, 2014*

**statistics**

What is your question? Length * Width = Area
*October 19, 2014*

**statistics**

If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. Either-or probabilities are found by adding the individual probabilities.
*October 19, 2014*

**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 later post.
*October 19, 2014*

**Probability**

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 19, 2014*

**Chemistry needs help**

Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question. 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 ...
*October 19, 2014*

**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 19, 2014*

**statistics**

Since mean, mode and median have the same value in a normal distribution, 50%.
*October 19, 2014*

**Physics needs help**

Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question.
*October 19, 2014*

**Algebra**

(.50*.40)f = 500 Solve for f.
*October 18, 2014*

**STATISTICS**

Please do not use all caps. Not only is it harder to read, but it is like SHOUTING online. Thank you. Z = (score-mean)/SD Calculate without the six zeros to indicate millions to make it easier. Find table in the back of your statistics text labeled something like "areas ...
*October 18, 2014*

**Physics needs help**

Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question.
*October 17, 2014*

**math**

√36 = 6 Does that look irrational?
*October 17, 2014*

**Math**

Disagree.
*October 17, 2014*

**Math**

Yes.
*October 17, 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 score. Multiply by 100. Percentile rank is % ≤ any score.
*October 17, 2014*

**health/stats**

How are you measuring cholesterol? In one person over time? Population averages? It can approximate a normal distribution, but very unlikely to "exactly" match.
*October 17, 2014*

**science help**

Agree.
*October 16, 2014*

**Math**

Add 2 to both sides, then multiply by 2.
*October 16, 2014*

**Sociology**

Consider that the President of the United States earns less in office than many company executives.
*October 16, 2014*

**Life orientation**

How far in the past are you using for comparison?
*October 16, 2014*

**Statistics**

An independent variable (explanatory?) 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 ...
*October 16, 2014*

**Statistics**

What are "cubes"? What did you choose?
*October 16, 2014*

**Statisitics**

Population is the total group to which results will be generalized. A sample is a portion of that population.
*October 16, 2014*

**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 16, 2014*

**Statistics**

In 1966, twins reared together have lower correlation than those raised apart.
*October 16, 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 (.20) and its Z score. Insert into above equation to calculate raw score.
*October 15, 2014*

**Math**

with larger n, sample mean would be more accurate estiamate of population mean. If the population distribution is normal, larger sample n would be closer approximation of normal distribution.
*October 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 later post.
*October 15, 2014*

**Statistics**

http://davidmlane.com/hyperstat/z_table.html
*October 15, 2014*

**Science HELP**

You don't indicate which color is dominant. If Black is dominant, then C is correct.
*October 15, 2014*

**math**

Online, “*” is used to indicate multiplication to avoid confusion with “x” as an unknown. AB * BC = AB^2C
*October 15, 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. See later post.
*October 15, 2014*

**Math**

Right.
*October 15, 2014*

**math**

A = 3B or B = A/3 C = 2A + 10 or A + B + C = 180 A + A/3 + (2A+10) = 180 Solve for A, then B and C.
*October 15, 2014*

**Math**

You are welcome.
*October 15, 2014*

**Math**

Yes
*October 15, 2014*

**Basic Statistics**

95% = mean ± 1.96 SEm 1.96 SEm = 200 SEm = SD/√n
*October 15, 2014*

**Basic Statistics**

Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability (.005) and its Z score. a) 99% = mean ± Z SEm SEm = SD/√n b) increase n, use different confidence interval
*October 15, 2014*

**Statistics**

a) 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 of the Z score. Multiply by 100. b) same table, using .0559 to find Z. Insert into above equation to ...
*October 15, 2014*

**Statistics**

40,000/310,000,000 = 4/31,000 = ?
*October 15, 2014*

**Psychology**

http://drdavespsychologypage.homestead.com/Stress__A_Type_Personality.pdf
*October 15, 2014*

**Science**

It won't pull you in any specific direction in the center of the earth, but it will keep you there. Boy, will it be hot!
*October 15, 2014*

**mathyeshoda**

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 14, 2014*

**Math**

If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. 4/14 * 10/13 = 10/14 * 4/13 = ? The total is reduced to 13, because one shoe has already been taken.
*October 14, 2014*

**stats**

It needs to be both rather than one or the other.
*October 14, 2014*

**Algebra**

You need to factor the end terms. -21 = -7 * 3 or -3 * 7. The x^2 term factors into 2 and 1. Which combination will give 1x as a middle term?
*October 14, 2014*

**Algebra**

Yes, π.
*October 14, 2014*