Q.26 If a variable z shows a standard normal distribution, then the percent probability that 0≤z2≤1 is (rounded off to the nearest integer).

If a variable z shows a standard normal distribution, then the percent probability that 0≤z2≤1 is (rounded off to the nearest integer).
(A) 34
(B) 68
(C) 95
(D) 99

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Sourav PanAugust 17, 2024

Answered

Answer: (B) 68
Explanation: The probability that z falls between -1 and 1 in a standard normal distribution is approximately 68%, which includes the range for z2.

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