Vidyalelo
Engineering Maths · Q77

Probability and Statistics

Engineering and GATE · Engineering Maths · question 77

Q77

If X is a normal variable with mean 30 and standard deviation 5, what is probability (26 ≤ X ≤ 34), given A(z = 0.8) = 0.2881?

A.
0.2881
B.
0.5762
Answer
C.
0.8181
D.
0.1616

Answer: Option B

Solution

Answer: Option B
No explanation is given for this question Let's Discuss on Board