Saturday

April 25, 2015

April 25, 2015

Total # Posts: 19,727

**Statistics**

1. Single blind gives the control group a placebo — a substance that is inert, it has no physical effect. Subjects don't know if they are in experimental or control group to reduce placebo effect, a change in behavior solely due to believing that you are getting the ...
*September 11, 2014*

**Statistics**

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 ...
*September 11, 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 related to the Z score. B. Find table in the back of your statistics text labeled something like "...
*September 11, 2014*

**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 give you a start. Find the mean first = sum of scores/number of scores ...
*September 11, 2014*

**statistics**

You are assuming that we are familiar with your acronyms. What are "tobt" and "tvc"?
*September 11, 2014*

**science**

overt aspects, explicit aspects, evident aspects?
*September 10, 2014*

**algebra**

L = 2W -3 2L + 2W = 144 Substitute 2W-3 for L and solve for W, then L.
*September 10, 2014*

**algebra**

Let x = short side, then 3x = each other side. x + 3x + 3x = 56 Solve for x, then 3x.
*September 10, 2014*

**biology**

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 ...
*September 10, 2014*

**Math**

27 = 3 * 3 * 3 36 = 3 * 3 * 4 Now what do you do?
*September 10, 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.
*September 10, 2014*

**math 12**

It would help if you proofread your questions before you posted them. Very difficult to read.
*September 10, 2014*

**Math**

Fourteen point one minus w Z divided by 8, then minus 9
*September 10, 2014*

**Math**

√29 = 5.3852 5 2/3 = 5.67 5.67 > 5.3852
*September 10, 2014*

**statistics**

I'm not sure what you mean by "answers assertively." Number of individuals answering yes. 10 * 100 * .5 = ?
*September 10, 2014*

**algebra**

5D = Q D + 6 = N .05N + .10D + .25Q = 5.30 Substitute terms. .5(D+6) + .10D + .25(5D) = 5.30 Solve for D, then N and Q.
*September 9, 2014*

**Algebra**

What would lead to a product of -3? (1,-3 or -1,3) From the two end terms, what would add to -2? Since the first term has to be 1, the last term has to be -3 to = -2. Include the a and b terms. I hope this helps.
*September 9, 2014*

**living environment**

1) Right 2) Remember that some of the products are not necessarily drinkable, e.g., soap, oil.
*September 9, 2014*

**Algebra I**

10x - x^2 = 3x - 10 50 - 25 ≠ 15 - 10 You are right.
*September 9, 2014*

**Science!**

No, how does the oven gauge what level of heat to release?
*September 9, 2014*

**5th grade math**

What product? If a decimal, delete all the zeros after the last real number, e.g., 56.17000 = 56.17.
*September 9, 2014*

**math**

Have the vertical axis (ordinate) represent frequency and the horizontal axis (abscissa) represent score values. Find the range of marks, arrange score values from low on left to high on right. Depending on the number of students, your might want to group the values into ...
*September 9, 2014*

**Math**

100 = 10^2 Online, “*” is used to indicate multiplication to avoid confusion with “x” as an unknown. 5.97 * 10^23 * 10^2 = 5.97 * 10^25
*September 9, 2014*

**Math**

When divided by 5, to get a remainder of 4, the ones number must be either 4 or 9. Four is eliminated, because it is not odd. To sum to 10, the first number must be 1 --> 19.
*September 9, 2014*

**Math**

No. y + 2y = ?
*September 9, 2014*

**Math**

No, what happened to the w?
*September 9, 2014*

**Urgent Spanish Check**

Sí
*September 9, 2014*

**math**

Nothing shown.
*September 9, 2014*

**algebra**

A = 2S 2.25A + 1.75S = 1150 Substitute 2S for A and solve for S, then A.
*September 9, 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 calculated.
*September 9, 2014*

**math**

Are you talking about the median? https://www.google.com/search?client=safari&rls=en&q=calculating+median&ie=UTF-8&oe=UTF-8&gws_rd=ssl
*September 9, 2014*

**Statstics**

Median = 50th percentile
*September 9, 2014*

**stats**

What is your Question? SD = √variance
*September 9, 2014*

**statistics**

Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability (for two-tailed, .05 and .01) and get the respective Z scores. 90% = Mean ± Z(SD) 98% = mean ± Z(SD) ...
*September 8, 2014*

**Statistics**

Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question. https://www.google.com/search?client=safari&rls=en&q=calculating+median&ie=UTF-8&oe=UTF-8&gws_rd=ssl#rls=en&q=calculating+correlation+...
*September 8, 2014*

**statistics**

It would help if you proofread your questions before you posted them. Does your "f" key not work well?
*September 8, 2014*

**algebra**

The memory used for a photo is variable. Also you don't indicate the total memory.
*September 8, 2014*

**Algebra**

Combine common terms. 2x^2 + 5x = 0 Factor. x(x+5) = 0 You should be able to take it from here. Check by inserting values found into the original equation.
*September 8, 2014*

**Biology please help!**

CO2 in the blood is the controlling factor for breathing rate.
*September 8, 2014*

**Biology**

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.
*September 8, 2014*

**math**

5 * 10^-5 liter
*September 8, 2014*

**math**

Assuming the $15 is a one-time charge for the wet suit… 25h = 20h + 15 Solve for h.
*September 8, 2014*

**Math**

It depends on the distance. For a long distance, like Greyhound, the number of seats. For a shorter distance, like a intracity bus, the number of seats plus the room for standing.
*September 8, 2014*

**please check see if im correct**

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. If you are using level of significance of P < .05, Z > 1.96.
*September 8, 2014*

**Biology - very urgent**

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 last post.
*September 8, 2014*

**Math**

What second column?
*September 8, 2014*

**Biology**

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.
*September 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. 81/(729+81) * 350/(350+350) = ?
*September 8, 2014*

**geometry**

If they are labeled identically, wouldn't they be measuring the same thing? I would assume that they are not perpendicular, but identical. However, assuming a labeling typo, I would agree.
*September 8, 2014*

**SS**

Yes, but you might want to express it in distance units rather than time.
*September 8, 2014*

**Biology**

Welcome
*September 8, 2014*

**Biology**

Since you inhale oxygen and exhale carbon dioxide, I would agree with you.
*September 8, 2014*

**math**

11(1 - .03) = ?
*September 8, 2014*

**Science**

Doesn't that depend on your definition of "more"? In the desert, it probably would. However, once the plant becomes saturated, I don't think so.
*September 8, 2014*

**Speech**

Welcome
*September 8, 2014*

**Speech**

Title: Right to Life If your mothers were pro-abortion, how many of you would not be here? Even if you don't use these, they might help you to think of your own.
*September 8, 2014*

**Speech**

What is the purpose of your speech? Are you just providing information, or are you advocating a pro or con position?
*September 8, 2014*

**math**

Online, “*” is used to indicate multiplication to avoid confusion with “x” as an unknown. 1) 7.34 * 10^-8 2) I assume the dashes in front of your choices are not meant to be negative signs. 10^-3 = .001 10^-4 = .0001 10^-5 = .00001 That should help you to ...
*September 8, 2014*

**speech**

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. My response to your later post still applies.
*September 8, 2014*

**math**

.6 * $18 = ? (Where is this clothing store? I would love to go to that sale.)
*September 8, 2014*

**Statistics**

68% is between Z of 1 and -1. Insert values of Z and solve for the scores. Z = (score-mean)/SD
*September 8, 2014*

**statistics**

Do you have a random number table? Start at any point and use applicable three digit numbers.
*September 8, 2014*

**math**

We would have to know the decimal first. For example, .5 = "point five" or "one half"
*September 7, 2014*

**pseudocode**

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.
*September 7, 2014*

**biology**

You would want to say that there is no control group — one which receives neither extra water nor extra fertilizer. You can have more than one independent variable. An independent variable is the potential stimulus or cause, usually directly manipulated by the ...
*September 7, 2014*

**Math**

1 Divide 1,000,000 by the various other numbers: 100, 100,000, 10,000 and 1000. 247 rounds to nearest 10 = 250. Double that.
*September 7, 2014*

**science**

Since a meter (m) = 39.37 inches, at 28 m, you must have a gigantic head! Typo? 1000 mm = 1m 100 cm = 1 m 1000m = 1 Km
*September 7, 2014*

**algebra**

56 + .16x > 112 + .08x Solve for x.
*September 6, 2014*

**Math**

0º C = 32º F
*September 6, 2014*

**statistics**

Either-or probabilities are found by adding the individual probabilities. Out of 52-card deck, there are four 4s, four 5s and 13 spades. However, 2 of the spades are a 4 and a 5. Can you work it from there?
*September 6, 2014*

**statistics**

If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. I'll let you provide the examples.
*September 6, 2014*

**statistics**

(43 -25)/43 = ?
*September 6, 2014*

**Math**

What is you question?
*September 6, 2014*

**math**

48 + x = 3(10 + x)
*September 6, 2014*

**Math**

Mean = ∑x/n
*September 6, 2014*

**science**

What is your reaction time?
*September 6, 2014*

**Math**

How many balls does she have originally?
*September 6, 2014*

**visual arts**

Since this is not my area of expertise, I searched Google under the key words "7 principles of design" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=7+principles+of+design&ie=UTF-8&oe=UTF-8&gws_rd=ssl In the future, you can find ...
*September 6, 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.
*September 6, 2014*

**Stats**

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 "...
*September 6, 2014*

**Business Math**

x - .3x = $72.09
*September 5, 2014*

**statistics**

In a normal distribution, mean, mode and median have same value. Median is 50th percentile, so what is the Z score at the mean?
*September 5, 2014*

**biology**

Since this is not my area of expertise, I searched Google under the key words "anthocyanins light sugar" to get these possible sources https://www.google.com/search?client=safari&rls=en&q=anthocyanins+light+sugar&ie=UTF-8&oe=UTF-8&gws_rd=ssl In the future, you can ...
*September 5, 2014*

**spanish**

If you are looking for the English equivalent, high school.
*September 4, 2014*

**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 of the Z score. Probability > .50.
*September 4, 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.
*September 3, 2014*

**History**

Pair trust/mistrust bars with different colors. Do this for each area.
*September 3, 2014*

**math**

Looks like Mojave was much less than the others. Do you want to make a pie chart or do X^2 (Chi square) analysis?
*September 3, 2014*

**math**

What table? August?
*September 3, 2014*

**math**

8,924,001
*September 2, 2014*

**math**

Multiply top equation by 2. 2x + 4y = 14 3x - 4y = 6 Add the two equations. 5x = 20 Solve for x, then y.
*September 2, 2014*

**math for praaaaaaaajiiii**

Unsure of what you are asking. √39 = 6.245
*September 2, 2014*

**math**

What numbers?
*September 2, 2014*

**math**

It would help if you proofread your questions before you posted them. I assume you mean 4.5% commission. 148,500 * .045 = ?
*September 2, 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.
*September 2, 2014*

**math**

A. $25.98 + 14.99 + 2.46 = ? B. $50 - ? = ??
*September 2, 2014*

**Spanish**

I prefer "¿Qué pasa?", but I don't know if that would be formal. You might try "¿Cómo lo pasa Vd?"
*September 1, 2014*

**math**

L = 3W - 10 LW = (3W-10)W = 3W^2 - 10W = 77 3W^2 - 10W - 77 = 0 Solve quadratic equation for W, then L.
*September 1, 2014*

**math**

(68/12)/8 = T/21 = 5.67/8 Solve for T in feet.
*September 1, 2014*