Wednesday

September 2, 2015
Total # Posts: 20,146

**Math Check**

If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. < 30 = 1-29 29/40 * (29-1)/(40-1) ≠ 9/16
*April 28, 2015*

**math**

What is your question? A square has 4 sides.
*April 28, 2015*

**BIO HELP PLEASE!!!**

It depends on the type of infection. For example, with HIV, none would be infected.
*April 27, 2015*

**Algebra**

3C + 4M = 12.50 3C + 2M = 8.50 Subtract the second equation from the first and solve.
*April 27, 2015*

**math**

Substitute 18-q for n in the second equation and solve for q. Insert that value into the first equation to solve for n. Check by putting both values into the second equation.
*April 27, 2015*

**math**

What equations?
*April 27, 2015*

**algebra**

When multiplying/dividing, exponents are added/subtracted respectively. 8 - (-5) = ?
*April 27, 2015*

**English**

Disagree.
*April 27, 2015*

**psychology**

I would say D.
*April 27, 2015*

**Statistics**

Probability of getting either one or two good batteries. Either-or probabilities are found by adding the individual probabilities. If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual ...
*April 26, 2015*

**math**

For a square, Length squared = area or Length = √area
*April 26, 2015*

**Statistics**

Out of 36 possibilities, you could get: 6, 3 3, 6 4, 5 5, 4
*April 25, 2015*

**statistics**

Since you say "distribution of IQ scores is NOT normally distributed," bell-shaped graphical does not represent it. Therefore, cannot make estimates. If it was normal, mean = mode = median.
*April 25, 2015*

**geometry**

With 45º on one side, the other angle would be 180º-90º-45º = 45º Altitude = base = 4 Use Pythagorean theorem. 4^2 + 4^2 = b^2
*April 25, 2015*

**statistics**

Calculate mean. Z = (score-mean)/SEm = (25-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. Would you consider that ...
*April 24, 2015*

**Psychology**

1) E 2) B
*April 24, 2015*

**Math, Statistics**

Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability (.40) and the related Z scores. Or you could use this source: http://davidmlane.com/hyperstat/z_table.html
*April 24, 2015*

**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 you later post.
*April 24, 2015*

**Math**

No graph. You cannot copy and paste here.
*April 24, 2015*

**Needs Excel help**

Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question.
*April 24, 2015*

**Statistics**

I assume you want the value of x. mean = ∑x/n 10 = (4+x+1+2+5)/5 Solve for x.
*April 23, 2015*

**Psychology 202**

If you mean achieving higher status in occupations, I would say true.
*April 23, 2015*

**statistics**

They are inversely related.
*April 23, 2015*

**Statistics**

I assume you are only concerned with the apples being too big to fit in the box. Ho: mean = 4.1 Ha: mean > 4.1 Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability (.05) and its ...
*April 23, 2015*

**Math**

C = 2πr = 18π 90π/18π = ?
*April 22, 2015*

**Life science**

Use a Punnett square. https://www.google.com/search?client=safari&rls=en&q=punnett+square&ie=UTF-8&oe=UTF-8&gws_rd=ssl
*April 22, 2015*

**Lumuka secondary school**

Assuming that you have a school counselor, have him/her give you interest tests to help clarify job preferences.
*April 22, 2015*

**Statistics**

a) Z = (score-mean)/SD b, c) 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 proportions/probabilities related to the Z scores.
*April 22, 2015*

**Statistics**

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. Ho: mean = 520 Ha: mean > 520 Find the mean first = sum of...
*April 22, 2015*

**Statistics**

Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability (.40) and its Z score. -Z = (score-mean)/SD = (10,000-mean)/500
*April 22, 2015*

**Statistics**

Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability (.02) and its Z score.
*April 22, 2015*

**Statistics**

Is Alisha also Anonymous? If so, see your later post. 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 22, 2015*

**Statistics**

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. Ha: µ < 30 Z = (score-mean)/SEm SEm = SD/√n
*April 22, 2015*

**Maths**

Since this is not my area of expertise, I searched Google under the key words "inventor of simultaneous equations" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=inventor+of+simultaneous+equations&ie=UTF-8&oe=UTF-8&gws_rd=ssl In ...
*April 21, 2015*

**genetics**

Since this is not my area of expertise, I searched Google under the key words "genetic eye color" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=genetic+eye+color&ie=UTF-8&oe=UTF-8&gws_rd=ssl In the future, you can find the ...
*April 21, 2015*

**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.
*April 21, 2015*

**math**

Data missing.
*April 20, 2015*

**math**

5º + 6º + 0º = ?º
*April 20, 2015*

**film**

What special effects do you want to create?
*April 20, 2015*

**Physics needs help**

Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question.
*April 20, 2015*

**HELP please**

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. Indicate your specific subject in the "School Subject" box, so ...
*April 20, 2015*

**help please? :( math**

Online "^" is used to indicate an exponent, e.g., x^2 = x squared. agree.
*April 20, 2015*

**math please help 8th grade**

If you only have one equation, how can you compare slopes?
*April 20, 2015*

**Math**

let x = glass capacity 6(5x) + 12x = 21 Solve for x.
*April 20, 2015*

**math**

(1-3/5)x = 50 Solve for x.
*April 20, 2015*

**Stats**

Where is the data? I'll start it for you. 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 = ...
*April 19, 2015*

**stats**

Cannot construct bar graph here. For each airline, calculate total times, then total on time and total delayed. Divide latter two by total times to get %. Draw bars.
*April 19, 2015*

**math needs help**

Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question.
*April 19, 2015*

**maths**

(13/5-12/7)/(-31/7*-1/2) + (-2/3-1/3) = (91/35-60/35)/(31/14) + (-1) = (31/35)/(31/14) - 1 = ?
*April 19, 2015*

**math**

65/12 - 32/12 = 33/12 65/12 + 32/12 = 97/12 (97/12)/(33/12) = ?
*April 19, 2015*

**Science**

How much does the average female weigh? Are you talking about pressure standing or on the ball of the foot or the heel while walking/running?
*April 19, 2015*

**statistics**

Ho: mean = 16 oz Ha: mean ≠ 16 oz
*April 18, 2015*

**Math**

What are the values for r, t and y?
*April 18, 2015*

**statistics**

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 Z = (score-mean)/SD Find ...
*April 18, 2015*

**statistics**

Agree.
*April 18, 2015*

**statistics**

Are you really looking for the "ratio of red/black"? Since the red cards are greater than the black cards, you have a ratio of red to black > 1. If it is black to read, then 6/14 = 3/7 I would disagree.
*April 18, 2015*

**statistics**

2x + 8 = 20 2x = 12 x = 6 red/black = 14/6 Repeat for second deal.
*April 18, 2015*

**Science**

How high was the object? 100 feet? one foot?
*April 17, 2015*

**Algebra**

No "following." Cannot copy and paste here. friction between tires and road?
*April 17, 2015*

**Help with Psychology**

No. Google each term.
*April 17, 2015*

**algebra**

y = 9x
*April 17, 2015*

**statistics**

Are you Jane and/or Paul? 211/812 = ?
*April 17, 2015*

**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 17, 2015*

**math**

a. 12/total = ? b. 7/total = ? c. (10+16)/total = ?
*April 16, 2015*

**MATH**

Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability (± .025) and its Z score. 95% = mean ± Z SEm SEm = SD/√n
*April 16, 2015*

**Math help needed**

Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question.
*April 16, 2015*

**Math**

3,456/(6*4) = ?
*April 16, 2015*

**Math**

Unclear. Scatter plots not measured in terms of Z scores. Scatter plot and histogram are two different types of statistical representations.
*April 16, 2015*

**Biology**

Right... plus 22 others, if human.
*April 16, 2015*

**statistics**

(total - 1676)/total = ?
*April 16, 2015*

**STATS HELP**

What rule? Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability (.08A, .08+.20>C) and related Z scores. Insert in equation below to find raw score. Z = (score-mean)/SD
*April 16, 2015*

**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.
*April 16, 2015*

**SCIENTIFIC NOTATION**

5 * 3.2 = 16 When multiplying, add exponents. -7 + 12 = 5 16 * 10^5 Convert.
*April 15, 2015*

**Literature needs help**

Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question.
*April 15, 2015*

**science**

It depends on the results of the experiment. Are the results statistically significant or not? What are your null and alternate hypotheses?
*April 15, 2015*

**Science**

I am assuming you are starting from "your house." No rounding required. 270 - 24 = ?
*April 15, 2015*

**math**

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 (.0401) and its Z score. Insert values in above equation to get SD.
*April 15, 2015*

**math**

OR… just in case your computer crashes, you could use this equation: 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. For d...
*April 15, 2015*

**6th Grade Math**

Sounds good as far as you went, but expensive. However, part of the input is also selecting the number. Make sure the output includes the lemonade coming down the slot, not just remaining in the machine.
*April 15, 2015*

**math**

If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. 20/100 * 19/99 * (98-18)/98 * (97-18)/97 * (96-18)/96 = ?
*April 15, 2015*

**Math**

.90 * .80 = ?
*April 15, 2015*

**math**

If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. A. .6 * (1-.8) = ? C. .6 * .8 = ? Use similar processes for B and D.
*April 15, 2015*

**Stats**

Ho: M = T Ha: M > T (one-tailed) I do not want to do an F-test to find out if the SDs are equal. 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 ...
*April 15, 2015*

**math**

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. Since pr(crash|rain or snow) = .2 and pr(crash|cloudy ...
*April 14, 2015*

**Math**

C + D = 54 therefore C = 54-D 4C + 2D = 122 Substitute 54-D for C in the third equation and solve for D. Insert that value into the second equation to solve for C. Check by putting both values into the third equation.
*April 14, 2015*

**Math**

90km/hr = 55.92 mi/hour
*April 14, 2015*

**Math**

A. (9*15) - (3*7) = ? B. Answer to A * 8/12 to get topsOil volume.
*April 14, 2015*

**math**

Agree.
*April 14, 2015*

**mathematics**

4ab(b+2-4a)
*April 14, 2015*

**Mathematics**

-5m^2
*April 14, 2015*

**Math**

6'5" = 5'17" 5'17" - 2'7" = 3'10"
*April 14, 2015*

**Math**

Convert 7 yds, 1' to 6 yds, 4', then subtract. Multiply yards by 3.
*April 14, 2015*

**Science**

Cannot draw graphs on these posts.
*April 14, 2015*

**geometry**

Cannot draw on these posts.
*April 14, 2015*

**biology**

agree.
*April 13, 2015*

**Statistics**

You have 9 possibilities. Divide that into the number of possibilities without chocolate.
*April 13, 2015*

**Math**

If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. A. 7/9 * 2/(9-1) = ? B. 2/9 * (2-1)/9-1) = ? C. Use similar processes for this question.
*April 13, 2015*

**Simple math**

Assuming that the cubes are numbered 1-6, probability is zero. 5 + 0 = 5
*April 13, 2015*

**Pre - CALCULUS**

2y - x = 5 x = 2y-5 Online "^" is used to indicate an exponent, e.g., x^2 = x squared. x^2 + y^2 - 25 = 0 Substitute 2y-5 for x in the third equation and solve for y. Insert that value into the second equation to solve for x. Check by putting both values into the ...
*April 13, 2015*

**Kelly**

Academic goals are the majors or degrees that you seek, while career goals are the jobs you seek. Academic majors can often lead to a wide variety of jobs.
*April 13, 2015*