If the probability that a bowler will bowl a strike is 0.6, what is the probabil
ID: 3362017 • Letter: I
Question
If the probability that a bowler will bowl a strike is 0.6, what is the probability that he will get exactly two strikes in four attempts? At least two strikes in four attempts? Assume that the attempts to bowl a strike are independent of each other. Round your answers to three decimal places.) exactly two strikes at least two strikes Need Help? Master it Talk to a Tutor Submit Answer Save Progress Practice Another Version -/1 points TanFin 11 8.R.022 My Notes Ask Your T The heights of 4000 women who participated in a recent survey were found to be normally distributed with a mean of 64.5 in. and a standard deviation of 1.5 in. What percentage of these women have heights of 67.5 in. or greater? (Round your answer to two decimal places.) You may need to use the appropriate table in the Appendix of Tables to answer this question.Explanation / Answer
P(strike ) = 0.6
P(exactly 2 strikes of 4) = C(4,2)*(0.6^2)*(0.4^2)
= 6*0.0576 = 0.346
P(atleast 2 strikes of 4) =P(exactly 2 strikes of 4)+P(exactly 3 strikes of 4)+P(exactly 4 strikes of 4)
=C(4,2)*(0.6^2)*(0.4^2)+C(4,3)*(0.6^3)*(0.4)+C(4,4)*(0.6^4) = 0.346 + 4*0.0864+0.1296= 0.821
PS: We are directed to solve only 1st question if multiple questions are posted