Question

Determine the area under the standard normal curve that lies to the left of

(a) Z = -0.64,
(b) Z = -0.91,
(c) Z = 0.78
(d) Z = 1.22.

Answer 1

To determine the area under the standard normal curve that lies to the left of a given z-score, we can use the z-table.

Step-by-step explanation:

To determine the area under the standard normal curve that lies to the left of a given z-score, we can use the z-table. The z-table provides the area under the curve to the left of any given z-score. For example, to find the area to the left of Z = -0.64, we can look up the corresponding area in the z-table, which is 0.2632. Similarly, for Z = -0.91, the area to the left is 0.1814. For Z = 0.78, the area to the left is 0.7823. And for Z = 1.22, the area to the left is 0.8888.