The probability that a standard normal random variable, Z, falls between -1.50 and 0.81 is 0.7242.

Question

Quizplus · Accepted Answer

This is true according to the standard normal distribution table or a calculator that can calculate normal probabilities. The probability of Z falling between -1.50 and 0.81 is calculated by subtracting the cumulative probability of Z being less than -1.50 from the cumulative probability of Z being less than 0.81, which equals 0.7242.

The Probability That a Standard Normal Random Variable, Z, Falls