Question

Given that x is a normal variable with mean μ = 49 and standard deviation σ = 6.1,

find the following probabilities. (Round your answers to four decimal places.)

(a)  P(x ≤ 60)

1

(b)  P(x ≥ 50)

2

(c)  P(50 ≤ x ≤ 60)

3

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