The amount of time that a drive-through bank teller spends on a customer is a random...

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The amount of time that a drive-through bank teller spends on a customer is a random variable with a mean 3.2 minutes and a s

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8990.01 - BEEDO -12 (2194 ZCuisn] (5:1 5+)1-15 det < 2)) = (wy. Gre < Z) da (9€5x)d (4) - guy [7900.0] = (1904 ZEmisn] (5:2-3 ce) P(32<x<3-4) = P(pake <7 < 3.2 cm - p/ 3.2-3.2 ( 7061164 <7 < 34 3.4-3.2 . 1.611Y =PLOZze1) = P(Z<1)-8(220) [using z table

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