Question

estimate the area percentage under a normal curve to the left of a z-score of -0.4. (1 point)
□ percent

Explanation:

Step1: Locate z = -0.4 in z-table

Find row for -0.4 and column for 0.00.

Step2: Get area from z-table

The value is 0.3446.

Step3: Convert to percentage

Multiply by 100: 0.3446 × 100 = 34.46.

Answer:

34.46