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 2.9

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 (square%)
(round to two decimal places as needed.)

Explanation:

Step1: Locate the z - score in the table

We look for the z - score of \(z = 2.9\) in the standard normal distribution (z - score) table.

Step2: Read the percentile value

From the standard normal distribution table, the percentile corresponding to \(z=2.9\) is \(0.9981\).

Answer:

\(99.81\%\)