# Posts by PsyDAG

Total # Posts: 23,378

**Statistics**

https://www.google.com/search?client=safari&rls=en&q=Chebyshev%E2%80%99s+theorem&ie=UTF-8&oe=UTF-8

**Math**

Cannot draw on these posts.

**Health**

This might also help. http://drdavespsychologypage.homestead.com/Learning_Hints.pdf

**Math**

You don't have to print "dollar sign." "$5" is adequate. This is what I assume you mean: You have $20 to spend on taxi fare. The ride costs $5 plus $2.50 per mile. $5 + $2.50m ? $20 Solve for m.

**Psychology**

It has been a long time since I used the Strong, but I would go with C for both.

**Statistics**

Use the Chi-square (X^2) method. X^2 = ? (O-E)^2/E, where O = observed frequency and E = expected frequency. ? = sum of all the cells. E = (column total * row total)/grand total df = n - 1, where n = number of cells Look up value in X^2 table in the back of your textbook.

**math**

First prize = 5/200 If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. 1st and 2nd Prizes = 5/200 * (5-1)/(200-1) = ?

**Maths**

Distance = rate * time D = 60km/h * 1/4h = 15km 15km = 36km/h * h Solve for h and convert to minutes, if necessary.

**maths (?)**

Lack data. Why should there be any peanuts?

**maths (?)**

It would help if you proofread your questions before you posted them. 30 ?

**Science**

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.

**Heath**

You cannot copy and paste here.

**math**

Cannot draw Venn diagram here.

**math**

x/5 = 60/3 Solve for x.

**science (?)**

No illustration. Cannot copy and place here. I searched Google under the key words "sporophyte" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=sporophyte&ie=UTF-8&oe=UTF-8 Do the same with the other terms. In the future, you can ...

**math**

Thousands digit must be 2. 2650

**English writting**

Goggle "barbie dolls." Don't just copy the material. Express the ideas in your own words. Although this will take more time and effort, you will learn more.

**Maths**

"dam"? Assuming the side of the square has 16.5m: 16.5m * 16.5m = ??m^2 Don't just copy the material. Express the ideas in your own words. Although this will take more time and effort, you will learn more.

**Maths**

385/500 = ? Multiply ? by 100.

**Math**

How big/long is the track? 1/4 Track + 3/8 mile

**Math**

2. B and C 3. How many CDs cost $30.00?

**Math**

Perimeter = 2(4.04) + 2(1.707) Volume = 4.04 * 1.707 * .078 Convert to cm. 1 inch = 2.54 cm

**science (?)**

It would help if you proofread your questions before you posted them. What do you want to find?

**science**

1. agree 2. Agree 4. disagree 5. what is your choice?

**Mathematics**

Is there a typo?

**Mathematics**

Multiply by 2. 6cm = 63 km Divide by 6. 1cm = 1.5km

**geometry needs help**

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

**math (?)**

No map. Cannot copy and paste here.

**Math**

(36-6)/36 = ?

**Algebra**

x = y + 2

**Algebra**

C = (F-32)5/9

**Math**

X - 1/2x - 1/2(1/2x) = 10 Solve for x.

**statistics**

The base would be between $20 and $30, and the height would be he number of shares.

**math (?)**

What does X stand for?

**division**

Does it need to have decimals? 8/4 = 2 8/2 = 4 8/8 = 1

**Psychology**

agree with A

**Statistics**

Z = MD/SEm SEm = SD/?n Online "^" is used to indicate an exponent, e.g., x^2 = x squared. SD = ?s^2 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 ...

**science**

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

**math**

Online, “*” is used to indicate multiplication to avoid confusion with “x” as an unknown. 10-2+3*5 = 8 + 15 = 23

**math**

Since 20 is an even number, there must be an even number of 3-point baskets. 2 3-point and 7 2-point baskets.

**Social Studies quiz PLEASE HELP**

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. What are your answers?

**math**

L * W = Area 120 * W = 480 Solve for W.

**Algebra (?)**

What matrix? Cannot copy and paste here.

**Science**

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

**Maths**

2L + 2W = perimeter. 2L + 2(3) = 20 Solve for L.

**math**

W * L = Area W * 4 3/8 = 9 13/18 Solve for W. 2W + 2L = perimeter

**Math**

10 * 1/2 = ?

**math**

I don't know. If you have a spinner, how many possibilities are there on the spinner?

**math**

It would help if you proofread your questions before you posted them. What is the situation? If P(7) = 3/8, then P(not 7) = 5/8.

**Biology**

Welcome

**Biology**

Do a Punnett square. Amber is right.

**Biology**

Capitals indicate dominant, and since both letters are the same, it is homozygous.

**math**

26 * 10 * (10-1) = ?

**math**

M = S/2 1.25M + 1.75S ? 20 Substitute S/2 for M in the second equation and solve for S.

**math**

12 * 2x = 18 Solve for x.

**Maths**

It would help if you proofread your questions before you posted them. Typo? You have the answer in your question, "2/7 of the class are left-handed boys".

**probability**

a. 14/40 b. 26/40 c. Either-or probabilities are found by adding the individual probabilities.

**Math**

Substitute 3+2j for f in the second equation and solve for j. Insert that value into the first equation to solve for f. Check by putting both values into the second equation.

**psych**

Agree with all except 9.

**psych**

1. Disagree. What is variable about it? Agree with 2, 3, 4, 5, 6. 7. Disagree. Does it make any difference about how long it takes to lose 5 pounds?

**MATH**

Agree 1.075-(-3.1) = 4.175

**Algebra**

.4 * 118 = 47.2 cm 100 cm = 1 m 47.2/100 = .472m

**MAth (?)**

It would help if you proofread your questions before you posted them. I can't make sense out of your post.

**math (?)**

Bill is better than me. I don't even know how many children she has. She could have twins who are one year old.

**math.......**

1.05($39.50) = 41.48

**Math needs help**

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

**Math**

It would help if you proofread your questions before you posted them. Also, we cannot draw on these posts.

**math**

72/4 = 18 72 + 18*3 + 18*2 = ?

**Statistics**

The statistical procedures are typically indicated in the article along with the values found with the procedure. Look for numbers and explanations of how the numbers were obtained.

**PSYDAG Statistics ( no computation)--help please**

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, this may help: http://www.fao.org/docrep/W7295E/w7295e08.htm

**Math, Statistics**

Either-or probabilities are found by adding the individual probabilities. http://math.stackexchange.com/questions/941150/what-is-the-difference-between-independent-and-mutually-exclusive-events

**PSYCHOLOGY**

https://www.google.com/search?client=safari&rls=en&q=psaychotherapy&ie=UTF-8&oe=UTF-8

**Math: Geometry**

Except for the symbol that denotes the choice, A and 3 and also B and 4 are identical.

**Math: Geometry**

If each answer indicates line segments, both B and 4 qualify as you have written the choices. It would help to decide whether you want to designate choices by letters or numbers.

**Math**

Yes, however, rather than what percent I save, I concentrate on how much I have to spend to get what I want. Retailers can put whatever value they want on an item then offer a discount. It may or may not be better than a price that is not discounted at another place.

**science**

Disagree. Haley's comet has made the trip several times. https://www.google.com/search?client=safari&rls=en&q=comet+tail+and+sun&ie=UTF-8&oe=UTF-8

**Math**

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.

**Math**

8045 Do you need us to do the addition for you, or is there more to this question?

**Physics**

Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question. However, we cannot graph on these posts.

**math**

3/5 of all the chests.

**math**

One hermaphrodite? ;)

**math**

I hope you had a typo. G + 5 = B B + G = 25 Substitute G+5 for B in the second equation and solve for G.

**Math**

Cannot graph here.

**maths**

It would help if you proofread your questions before you posted them. "deducted"? 3N + 17 = 4N - 10 Solve for N.

**Maths**

8*10 = 80 8*1 = 8

**Science**

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. You might try this: https://www.google.com/search?client=safari&rls=en&q=genetic+engineering...

**Anatomy and Physiology**

Disagree AORTIC VALVE. Closes off the lower left chamber that holds the oxygen-rich blood before it is pumped out to the body. Opens to allow blood to leave the heart (from the left ventricle to the aorta and on to the body).

**Statistics**

Agree SD^2 = variance

**Math**

Disagree. 1/10 = 10/100

**Mathematics**

2/3 of $60 = $40 $40 = 1/2J Solve for J.

**Psychology**

I also agree.

**Psychology**

I agree with 1, 2, and 4. However, I am unfamiliar with Myers-Briggs, so I cannot respond to that one.

**Statistic Psychology**

With an error of 3, how do you get ±1? Disagree,because 99.5% encompasses 3 times the standard error.

**maths**

Distance = rate*time = 600 * 2 1/3 Calculate distance.

**math**

It would help if you proofread your questions before you posted them. A "soda costs $99"? I assume you mean $.99. h = 2s + 1.27 = 2(.99) + 1.27 Calculate.

**Mental Health**

Disagree

**Statistics**

Z = (score-mean)/SD

**PsyDAG How can i inteview you?**

Post questions to <dagershaw@cox.net>.

**algebra (inequality)**

Welcome

**algebra (inequality)**

300 + .1x ? 1200 To solve for x, first subtract 300 from both sides, then divide both sides by .1(10%).