z is a standard normal random variable.The P(1.05

Name: z is a standard normal random variable.The P(1.05 < z < 2.13) equals A) 0.8365 B) 0.1303 C) 0.4834 D) 0.3531
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Question

z is a standard normal random variable.The P(1.05 < z < 2.13) equals
A) 0.8365
B) 0.1303
C) 0.4834
D) 0.3531

Quizplus · Accepted Answer

The probability P(1.05 < z < 2.13) is found by calculating the area under the standard normal curve between z = 1.05 and z = 2.13. Using standard normal distribution tables or a calculator, P(z < 2.13) ≈ 0.9834 and P(z < 1.05) ≈ 0.8531. Therefore, P(1.05 < z < 2.13) = 0.9834 - 0.8531 = 0.1303.

Z Is a Standard Normal Random Variable