Question
In: Statistics and Probability
Assume that x has a normal distribution with the specified mean and standard deviation. Find the...
Assume that x has a normal distribution with the specified mean and standard deviation. Find the indicated probability. (Round your answer to four decimal places.)
μ = 5.0; σ = 0.8
P(7 ≤ x ≤ 9) =
Solutions
Expert Solution
Solution :
Given that ,
mean = 
= 5.0
standard deviation = 
= 0.8
= P[(7 - 5.0 / 0.8) 
(x -
) /
(9 - 5.0 / 0.8) ]
= P(2.5
z
5)
= P(z
5) - P(z
2.5)
= 1 - 0.9938
= 0.0062
P(7
x
9) = 0.0062
orchestra answered 2 years agoRelated Solutions
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