Question

use the accompanying table of z - scores and percentiles to find the percentage of data items in a normal distribution that lie a. below and b. above a z - score of - 0.25
click the icon to view the table of z - scores and percentiles.
a. the percentage of data items that lie below the z - score is 40.13 %
(round to two decimal places as needed.)
b. the percentage of data items that lie above the z - score is %
(round to two decimal places as needed.)

Explanation:

Step1: Recall total percentage

In a normal distribution, the total percentage of data is \(100\%\).

Step2: Calculate percentage above

Subtract the percentage below (\(40.13\%\)) from \(100\%\): \(100 - 40.13 = 59.87\)

Answer:

\(59.87\)