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If z is a standard normal variable, find the probability: The probability that z is less than 1.13

A. 0.8708
B. 0.8907
C. 0.8485
D. 0.1292

1 Answer

3 votes

Answer:

The correct answer is B. 0.8907.

If z is a standard normal variable, it follows a normal distribution with a mean of 0 and a standard deviation of 1. This means that the probability of z being less than 1.13 can be found by looking up the corresponding z-score in a standard normal table, which shows the probabilities for different values of a standard normal variable.

The probability of z being less than 1.13 is 0.8907, which is the probability associated with the z-score of 1.13 in a standard normal table. This is the correct answer, so the answer is B.

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