Assume that x has a normal distribution with the specified mean and standard deviation. Find the indicated probability. (Enter a number. Round your answer to four decimal places.)
μ = 4; σ = 6
P(1 ≤ x ≤ 13) =
Solution :
P(1
x
13) = P[(1 - 4)/ 6)
(x -
) /
(13 - 4) / 6) ]
= P(-0.5
z
1.5)
= P(z
1.5) - P(z
-0.5)
= 0.9332 - 0.3085
= 0.6247
Get Answers For Free
Most questions answered within 1 hours.