# statistics

posted by .

For a normal distribution, identify the z-score location that would separate the distribution into sections so that there is:

a)60% in the body on the right-hand side
b)90% in the body on the left-hand side

• statistics -

60% is to the right of z = -0.25
90% is to the left of z = +1.28

"z" is (x-x(mean))/{standard deviation)

You need a table of the error function or normal distribution to do this kind of problem.

## Similar Questions

1. ### College Stat

Draw a vertical line through a normal distribution for each of the following z- score locations. Determine whether the body is on the right or left side of the line and find the proportion in the body. (a). z = 2.20 (b) z = 1.60 (c) …
2. ### Stat BHS 201

find the z- score location of a vertical line that spearates a normal distribution as described in each of the following. a. 20% in the tail on the left b 40% in the tail on the right c 75% in the body on the left d. 99% in the body …
3. ### stat

Draw a vertical line through a normal distribution for each of the following z- score locations. Determine whether the body is on the right or left side of the line and find the proportion in the body. (a). z = 2.20 (b) z = 1.60 (c) …
4. ### Statistics

1. Which of the following statements are correct?
5. ### Math

Verify the identities by transforming the left-hand side into the right-hand side. Show work. (tan^2X)/(1-cos^2x)= sec^2x HELP
6. ### Statistics

Draw a vertical line through a normal distribution for each of the following z-score locations. Determine whether the body is on the right or left side od the line and find the proportion in the body. a. z= 2.20 b. z= 1.60 c. z= -1.50 …
7. ### Physics

You are going to toss a rock straight up into the air by placing it on the palm of your hand(you are not gripping it) then pushing your hand up very rapidly. Draw a free body a diagram for the rock for each situation, and write the …
8. ### Statistics

Consider the standard normal distribution. Find the area for the z-score -0.75. Draw a picture of this distribution showing the location of the z-score and the mean. Shade the region corresponding to the area found for the z-score.
9. ### English

Let's do gymnastics. This is a side exercise. Stand up, and put your legs apart at the shoulder width. Bend your body westward as you raise your right hand toward your armpit. Bend your body westward one more time as you raise your …
10. ### English

1. Raise your hands to shoulder height. 2. Lower your hands to foot height. 3. Lift your right hand to nose height. 4. Lift your left hand to eye height. 5. Bend your body left, and then bend your body right. 6. Bend your body to the …

More Similar Questions