Asked by Lauren Hammons on Jun 09, 2024

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z is a standard normal random variable.The P(-1.5 < z < 1.09) equals

A) 0.4322.
B) 0.3621.
C) 0.7953.
D) 0.0711.

Standard Normal

A type of normal distribution with a mean of 0 and a standard deviation of 1.

Random Variable

A numerical value variable resulting from random phenomena.

  • Determine the probability values for various spans in the context of the standard normal distribution.
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Verified Answer

MG
Mateo GrijalvaJun 10, 2024
Final Answer :
C
Explanation :
Using a standard normal distribution table, we can find that the area to the left of 1.09 is 0.8621 and the area to the left of -1.5 is 0.0668. To find the area between these two values, we subtract the smaller area from the larger area: 0.8621 - 0.0668 = 0.7953. Therefore, the answer is (C) 0.7953.