Question

use the standard normal table or technology to find the z - score that corresponds to the cumulative area 0.2620. z = □ (type an integer or decimal rounded to two decimal places as needed.)

Explanation:

Step1: Use standard - normal table

Look up the cumulative area 0.2620 in the standard - normal table (the z - table). The standard - normal table gives the cumulative area to the left of the z - score.

Step2: Find the z - score

Searching the body of the standard - normal table for the value closest to 0.2620. The closest value in the table corresponds to a z - score.

Answer:

$-0.64$