Find the area under the standard normal curve over the interval specified below. Between z = -2 and 1
A)0.819
B)0.477
C)0.341
D)0.499
E)0.136

Question

Quizplus · Accepted Answer

The area under the standard normal curve between z = -2 and z = 1 can be found by looking up the values in a standard normal distribution table or using a calculator with statistical functions. The area to the left of z = 1 is approximately 0.8413, and the area to the left of z = -2 is approximately 0.0228. Subtracting these values gives us the area between these two z-scores: 0.8413 - 0.0228 = 0.8185, which rounds to 0.819.

Find the Area Under the Standard Normal Curve Over the Interval