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SHOW ALL YOUR WORK TO GET FULL CREDIIS. Exercise 1. (20pts) Carpooling 40% of all commuters...


SHOW ALL YOUR WORK TO GET FULL CREDIIS. Exercise 1. (20pts) Carpooling 40% of all commuters ride to work in carpools. If 8 wo
SHOW ALL YOUR WORK TO GET FULL CREDIIS. Exercise 1. (20pts) Carpooling 40% of all commuters ride to work in carpools. If 8 workers are selected, (1a) (6pts) What is the probability that exactly 5 will ride in carpools? AK Plx:k)= nCk prerog. (1b) (7pts) What is the probability that at least @ will ride in carpools ? (1c) (7pts) What is the probability that at most I will ride in carpools ?
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1 Ans Euren that coepooling tot I of all commuters ride to work in carpoole. p=10 ) = 0.10 q=1-pa 1-0.10 = 0.90 Given that ofP(x+2) = 1- %. (0-10 °C ) 8, Co.10) (0.90) - 110.4305+ 0.382614] = (-0.813) a 0.1869 pLX23) 20:18691 ③ probability that almos

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