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

Question

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

Quizplus · Accepted Answer

To find $P ( - 2.25 < z < 1.25 )$, we look up the z-scores in the standard normal distribution table or use a calculator. The area to the left of $z = 1.25$ is approximately 0.8944, and the area to the left of $z = -2.25$ is approximately 0.0122. Subtracting these gives $0.8944 - 0.0122 = 0.8822$, which is closest to option C, considering rounding differences.

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 $P ( - 2.25 < z < 1.25 )$