Saturday

October 25, 2014

October 25, 2014

Total # Posts: 18,541

**Statistics**

If "the probability of birth is equal in all months," that means that you would expect 10 students to be born in each month. Would either distribution apply in this case?
*February 28, 2014*

**Statistics**

Are the means from the same population or different?
*February 28, 2014*

**Science**

Agree
*February 27, 2014*

**math**

Online, “*” is used to indicate multiplication to avoid confusion with “x” as an unknown. 1. 35 + 50 + (25/5 * 5) - (8+11) = 110 - 19 = 91 2. 24/8 + 31 = 34 3. 3 + 2(7) = 17 4. 5(3) - 16 = 15 - 16 = -1 5. right.
*February 27, 2014*

**BIOLOGY**

Not willfully, but random mutation does occur.
*February 27, 2014*

**ethics**

I disagree. http://www.utilitarianism.net/singer/by/1972----.htm
*February 27, 2014*

**consumer math**

($15,876 * 1.0525) - .1($15,876) = ?
*February 27, 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 your later post.
*February 27, 2014*

**math**

Volume = height * Base Therefore: V/B = h Insert values and calculate.
*February 27, 2014*

**ethics**

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.
*February 27, 2014*

**algebra**

Do you mean 5 -(+2)? 5 - (+2) = 5 - 2 = 3
*February 27, 2014*

**Algebra**

With 2π factored out… (x^2 + 4x + 4) + (x^2 + 7x + 10) = 2x^2 + 11x + 14 or 2π(2x^2 + 11x + 14)
*February 27, 2014*

**math**

81 > n^2 = (-8)^2
*February 27, 2014*

**math**

35 + 35 = 70 (?)
*February 27, 2014*

**Math**

-6x^2 + 15x
*February 27, 2014*

**Math 102**

(30.60-18)/18 = ?
*February 27, 2014*

**math**

(8*32) - 52 = ?
*February 27, 2014*

**Alegbra**

Substitute 4c for d in first equation and solve for c. Insert that value into the second equation and solve for d. Check by inserting both values into the first equation.
*February 27, 2014*

**Math**

15.025
*February 26, 2014*

**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. Extraneous variables — other than the independent ...
*February 26, 2014*

**Psychology**

Responses consistent over time, places and persons are attributed to one's personality. Consequences to an organism's responses are the key relationship in operant conditioning. Rewarded responses will continue or increase, nonrewarded responses will go to extinction. ...
*February 26, 2014*

**health**

http://drdavespsychologypage.homestead.com/AIDS_in_Arizona.pdf
*February 26, 2014*

**Maths (?)**

We cannot see the figure. You cannot copy and paste here.
*February 26, 2014*

**statistics**

Z = (score-mean)/SD Either use the handout or 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.
*February 26, 2014*

**Mathematic**

1000
*February 26, 2014*

**math**

4(6+2) - 6 = 26
*February 26, 2014*

**Science (?)**

Missing needed data. Cannot copy and paste here.
*February 25, 2014*

**algebra**

2L + 2W < 330 L < 90 180 + 2W < 330 2W < 150 W < 75
*February 25, 2014*

**math (?)**

What do c and d signify?
*February 25, 2014*

**math**

7.5 mm
*February 25, 2014*

**math**

Online, “*” is used to indicate multiplication to avoid confusion with “x” as an unknown. .06x = 9.33 x = 9.33/06 = 155.50
*February 25, 2014*

**Math**

5 + .04t < 2 + .10t 3 < .06t t > 3/.06 = 50
*February 25, 2014*

**MATH (?)**

How many of each color are in a package?
*February 25, 2014*

**math**

(2.50-1.75)M - 40 = 550 .75M = 590 M = 590/.75
*February 25, 2014*

**Algebra Readiness**

The previous post is for the square cake. Need more data for the "heart cake."
*February 25, 2014*

**Algebra Readiness**

L = W = 8 2W + 2L = Perimeter W * L = area
*February 25, 2014*

**behavioral statistics**

Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportions/probabilities to compare their Z scores (the most common type of standard score).
*February 25, 2014*

**Math**

(2*6+3)^2 > 175 15^2 > 175 225 > 175
*February 25, 2014*

**Statistics**

Don't have a TI-84 calculator, but.... 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 (.80) related to a Z score. Insert that value into the above ...
*February 25, 2014*

**math**

2 1/3x = 7/3x = 15 x = 6.43 .43 * 7/3 = ?
*February 25, 2014*

**math**

5x = beads in necklace 5x + x = 192 Solve for x, then 5x.
*February 25, 2014*

**math**

14 - 9 = ?
*February 25, 2014*

**probability**

If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. (1-.4)(1-.8)(1-.6) = ?
*February 25, 2014*

**Statistics**

It is 99%, sorry for the typo.
*February 25, 2014*

**Statistics**

95% = mean ± 2.575 SEm SEm = SD/√n I'll let you do the calculations.
*February 25, 2014*

**Science Please HELP!!!**

X-chromsome Now are you reedy for the real thing rather than just practice?
*February 24, 2014*

**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.
*February 24, 2014*

**ela**

Google each term. In the future, you can find the information you desire more quickly, if you use appropriate key words to do your own search. Also see http://hanlib.sou.edu/searchtools/.
*February 24, 2014*

**business communication (?)**

Do you have alternatives to choose from? You cannot copy and paste here. Having typos (as you have in your subject listing) indicates lack of attention to detail.
*February 24, 2014*

**math**

19/5 = x/1.5 Solve for x.
*February 24, 2014*

**math**

9.5/2 = x/14 Solve for x.
*February 24, 2014*

**Math**

6'4" = 76" 1" = 2.54 cm 76" * 2.54 = ?
*February 24, 2014*

**Psychology**

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 searched Google under the key words "power assertion psychology" to get...
*February 24, 2014*

**vocab (?)**

It would help if you included the context for these terms.
*February 24, 2014*

**Science**

How could you throw a ball, "if inertia didn’t exist?"
*February 24, 2014*

**psy220**

Not knowing what your question is, I searched Google under the key words "American pursuit of happiness" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=American+pusuit+of+happiness&ie=UTF-8&oe=UTF-8#q=American%20pursuit%20of%...
*February 24, 2014*

**AP style (?)**

What is the context? For example, if it is North Central College, it would not be hyphenated.
*February 23, 2014*

**Statistics (?)**

What blanks? Z = (score-mean)/SD T = 50 + 10Z
*February 23, 2014*

**statistics**

95% = mean ± 2 SD 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 = square root of variance ...
*February 23, 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.
*February 23, 2014*

**math (?)**

We cannot see your diagram, and you cannot copy and paste it. https://www.google.com/search?client=safari&rls=en&q=right+acute+and+obtuse+angles&ie=UTF-8&oe=UTF-8
*February 23, 2014*

**Probability**

If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. 1/3 * 1/3 = ?
*February 23, 2014*

**Statistics**

Either-or probabilities are found by adding the individual probabilities. Since three face cards are already spades, delete them for the face card probability. 9/52 + 13/52 = ?
*February 22, 2014*

**Probability**

Right!
*February 22, 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. See your later post.
*February 22, 2014*

**rutgers**

With your data, you don't, unless you meant ∑(mean-x)^2 = 238 You have to 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 ...
*February 22, 2014*

**math**

33.60/4 *1000 = ?
*February 22, 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 "...
*February 22, 2014*

**A Peculiar Question**

It is a learned method of relating to others. If it inconsistent over situations and persons, it can be considered an aspect of one's personality. However, whatever is learned can be unlearned… assuming that the person wants to unlearn it.
*February 21, 2014*

**Algebra 1**

The latter. Exponents are added when multiplying terms.
*February 21, 2014*

**math**

(11,000-8690)/11,000 = ?
*February 21, 2014*

**Bio 20**

Although this is not my major area of expertise, I would say D. For the same volume of water, a thin hose has more pressure than a larger one.
*February 21, 2014*

**Science**

Since this is not my area of expertise, I searched Google under the key words "brain lobes fetal pig" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=brain+lobes+fetal+pig&ie=UTF-8&oe=UTF-8 In the future, you can find the ...
*February 21, 2014*

**statistics**

µ = 30 Variance for distribution of means = (SD/√n)^2 = ?
*February 20, 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 your later post.
*February 20, 2014*

**math**

I assume you mean 3/8 = 7/(x+1). Multiply both sides by x+1. 3/8x + 3/8 = 7 Subtract 3/8 from both sides. 3/8x = 6 5/8 = 53/8 Multiply both sides by 8/3. x = 53/8 * 8/3 = ?
*February 20, 2014*

**Probability**

If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. 1. .2 * (1-.3) = ? Either-or probabilities are found by adding the individual probabilities. 2. (.2 *3.) + (.8 *.3) = ?
*February 20, 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 your last post.
*February 20, 2014*

**Science**

I agree.
*February 20, 2014*

**algebra**

Ah, better! l2xl > 16 x > ± 8
*February 20, 2014*

**algebra**

It would help if you proofread your questions before you posted them. There is no inequality given. An inequality requires either a < or > symbol.
*February 20, 2014*

**maths**

It would help if you proofread your questions before you posted them. Hard to know if the space denotes a comma or period or something else. 55,010 - 899 = 54, 111
*February 20, 2014*

**STATS**

To make a prediction, it doesn't matter which variable is measured on the abscissa.
*February 20, 2014*

**Biology**

Is SW USA a polar Region? I live in the SW… A.
*February 20, 2014*

**BIOLOGY**

Availability of food and vulnerability to predators. Natural mutations might make changes in phenotypes that help in dealing with the two factors above. Those would then tend to reproduce.
*February 19, 2014*

**Middle School Math Help Please**

Juice started out as a whole glass (1). Water = 1/6 + 1/3 + 1/2 = ?
*February 19, 2014*

**Algebra**

w = 30 - y 9.95w + 13.50y = 337.55 Substitute 30-y for w in second equation and solve for y. Insert that value into the first equation and solve for w. Check by inserting both values into the second equation.
*February 19, 2014*

**Math**

Subtract one equation from the other to eliminate the y. 11x = -11 Solve for x then y.
*February 19, 2014*

**algebra**

I don't understand why 100x is negative. Wouldn't commission for sales be positive? If he sells no computers, x = 0.
*February 19, 2014*

**Statistics**

See previous post.
*February 19, 2014*

**Statistics**

If you are comparing two means, you need to have the SEm, which requires knowledge of n. You do not supply that value. 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 ...
*February 19, 2014*

**Science**

Since this is not my area of expertise, I searched Google under the key words "thymus size fetal pig" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=thymus+size+fetal+pig&ie=UTF-8&oe=UTF-8 In the future, you can find the ...
*February 19, 2014*

**Socials**

Since this is not my area of expertise, I searched Google under the key words "Kamloops biome" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=Kamloops+biome&ie=UTF-8&oe=UTF-8 In the future, you can find the information you desire ...
*February 18, 2014*

**Math**

each set? With replacement, the probability for red remains 6/15 = 2/5 If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events.
*February 18, 2014*

**Statistics**

If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. .8 * (1-.6) = .32
*February 18, 2014*

**Statistics (?)**

More data is needed for us to provide help.
*February 18, 2014*

**stastistics**

http://en.wikipedia.org/wiki/Student's_t-test
*February 18, 2014*

**algebra (?)**

No answers followed. Cannot copy and paste here.
*February 18, 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. If the events are independent, the probability of both/all events occurring is ...
*February 18, 2014*

**statistics**

Expect the µ's to stay the same. The standard error of the mean (SEm) = SD/√n SEm would tend to get smaller as n increases.
*February 18, 2014*

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