Question

Find the area, to the nearest thousandth, of the standard normal distribution between the given z-scores z = 1.24 and z = 1.73.

a. 0.091
b. 0.076
c. 0.144
d. 0.047

Answer 1

To find the area between two z-scores, subtract the smaller area from the larger area, rounding to the nearest thousandth.

Step-by-step explanation:

To find the area between two z-scores, you need to find the area to the left of each z-score using the z-table. The area to the left of z = 1.24 is 0.8915 and the area to the left of z = 1.73 is 0.9582. Subtracting the smaller area from the larger area, 0.9582 - 0.8915 = 0.0667. Rounding to the nearest thousandth, the area between the z-scores is approximately 0.067.