Use the standard normal distribution to find $$P ( - 2.25

Name: Use the standard normal distribution to find \[P ( - 2.25 < z < 1.25 ) .\] A) .8944 B) .8821 C) .4878 D) .0122
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Question

Use the standard normal distribution to find $$P ( - 2.25 < z < 1.25 ) .$$
A) .8944
B) .8821
C) .4878
D) .0122

Quizplus · Accepted Answer

The probability $P(-2.25 < z < 1.25)$ can be found using the standard normal distribution table or a calculator. The cumulative probability for $z = 1.25$ is approximately 0.8944, and for $z = -2.25$ is approximately 0.0122. Subtracting these gives $0.8944 - 0.0122 = 0.8822$, which is closest to option B.

Use the Standard Normal Distribution to Find P(−2.25<z<1.25).P ( - 2.25 < z < 1.25 ) .P(−2.25<z<1.25).

Use the Standard Normal Distribution to Find $P ( - 2.25 < z < 1.25 ) .$