Z is a standard normal random variable. The P-1.96 ≤ Z ≤ -1.4) equals
A) 0.8942
B) 0.0558
C) 0.475
D) 0.4192

Name: Z is a standard normal random variable. The P-1.96 ≤ Z ≤ -1.4) equals A) 0.8942 B) 0.0558 C) 0.475 D) 0.4192
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Question

Quizplus · Accepted Answer

Using a standard normal distribution table, we find that the area to the left of -1.96 is 0.025 and the area to the left of -1.4 is 0.0808. Therefore, the area between -1.96 and -1.4 is 0.0808 - 0.025 = 0.0558.

Z Is a Standard Normal Random Variable