Answer
$P(X < 600) = 0.0853$
Work Step by Step
$P(X < 600) = P(X \leq 599)$
Using the z value approach:
$z = \frac{599 - 1000(0.62)}{15.35} = -1.368$
Using the z value calculator, we have:
P(z < -1.368) = 0.0853
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