18
QuizMultiple Choice

Applications with Standard Normal Distribution — Quiz

Question 18 • Mathematics III

For a standard normal distribution, find the approximate value of mathrm cap p open paren z is less than or equal to 0 point 4 2 close paren Use the portion of the standard normal table to help answer the question. z Probability 0 point 0 0 0 point 5 0 0 0 0 point 2 2 0 point 5 8 7 1 0 point 3 2 0 point 6 2 5 5 0 point 4 2 0 point 6 6 2 8 0 point 4 4 0 point 6 7 0 0 0 point 6 4 0 point 7 3 8 9 0 point 8 4 0 point 7 9 9 5 1 point 0 0 0 point 8 4 1 3

Answer
A
16 percent
B
84 percent
C
34 percent
D
66 percent

Explanation

The table gives the probability to the left of z = 0.42 as 0.6628. Converting this to a percentage gives about 66%. Therefore, the answer is 66 percent.

AI-written and checked against the verified answer.

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