Find two z values so that 64% of the middle area is bounded by them. Use The Standard Normal Distribution Table and enter the answers rounded to 2 decimal places, separated by a comma if needed.

Find the z-score that has 64.1% of the distribution's area to its right. The z-score is. (Round to two decimal places as needed.)

How do you find proportion of normal distributions ? Because I don't understand how a score less than or equal to 6.0 can be the same as 0.303 in the actual data

Use the accompanying table of z-scores and percentiles to find the percentage of data items in a normal distribution that lie between z=0.9 and 2-1.6. Click the icon to view the table of z-scores and percentiles KECI The percentage of data items in a normal distribution that lie between 2-0.9 and 2 1.6 is% (Round to two decimal places as needed.)

The length of a 13-year-old female's upper arm is approximately normally distributed with mean μ = 34.6 cm and a standard deviation of o=2.4 cm. Complete parts (a) through (c) below. (a) Draw a normal curve with the parameters labeled. Choose the correct graph below. A. O C. A. A -4.8 -2.4 2.4 4.8 7.2 C. -7.2 -X -103.8 -69.2 -34.6 0 34.6 69.2 103.8 I -X B. Q D. (b) Shade the region that represents the proportion of 13-year-old females whose upper arm length is less than 32 cm. The horizontal axis tick marks are the same as those in part (a). Choose the correct graph below. B. I I D. 27.4 29.8 32.2 34.6 -X 37 39.4 41.8 -X -101.4 -66.8 -32.2 2.4 37 71.6 106.2 -X

Find the area in a t-distribution below  -2.3 if the sample has size n=8.Round your answer to three decimal places.area =

Find the z-score that has 48.8% of the distribution's area to its left. The Z-score is (Round to two decimal places as needed.)

Can you solve 6,7,8, and 9 and explain the process as to how you got the answers

When finding the area of a z score how do you know when to add or subtract the .5 or 1. I am very confused on this. I know more than half of the time you add .5 but then sometimes you also subtract from 1. In terms I am talking about Std. Normal Distribution if I am confusing you.

Help me with all of them please