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Fall 2019 Stablementary c a me Troy Spencer 1 For the values 33 34 40 41 58 60 61 65 68 69 70 72 Find the percentile correspo
6. 90% of all people between the ages of 30 and 50 drive a car, find these probabilities for a sample of 25 people in that ag
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Answer #1

Given thati- P=0.goa n=25 using binomial distribution, The Probability mass function, x I 21 P[ x= z) = (n ) pCI-P) W-* , x-0(7 Let X be microsoft plans worker XhN(1250, (250) 2) M=1250 o=250 P[ 750<x<1500) = P(750-1250 (X-Y 1500-1250 = Pl -2 <<<1231P[ z>0.80 INCOIL) 0.80 =I-PL 220-801 wing z table, = 1 - 0.7881 = 0.2119 - ③ P(Z <-1.4) using z-table = 0.0808 INCoil) -1.4

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