Let z be a normal random variable with mean 0 and standard deviation 1.What is P(z -1.1)?
A) 0.36432
B) 0.8643
C) 0.1357
D) -0.1357
E) -0.8643

Name: Let z be a normal random variable with mean 0 and standard deviation 1.What is P(z > -1.1)? A) 0.36432 B) 0.8643 C) 0.1357 D) -0.1357 E) -0.8643
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Question

Let z be a normal random variable with mean 0 and standard deviation 1.What is P(z > -1.1)?
A) 0.36432
B) 0.8643
C) 0.1357
D) -0.1357
E) -0.8643

Quizplus · Accepted Answer

The probability P(z > -1.1) is equivalent to 1 - P(z ≤ -1.1). Using the standard normal distribution table, P(z ≤ -1.1) is approximately 0.1357. Therefore, P(z > -1.1) = 1 - 0.1357 = 0.8643.

Let Z Be a Normal Random Variable with Mean 0