A shipment contains 14 igneous, 12 sedimentary, and 12 metamorphic rocks. If 8 rocks are selected at random, find the probability that exactly 6 are sedimentary. The probability that exactly 6 of the rocks are sedimentary is (Round to four decimal places as needed:)

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A: Note- Giving solution for option B only, because part a is already solved.

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Q: A B C Total What is P (B or Z)? Round to 4 decimal places. X 29 69 12 110 100 98 24 222 N 139 88 148…

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Q: 6. In a binomial experiment with n = 3 show that P(X = 10 X = 2) = 3pq. Remember that q = 1 - p.

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Q: a shipment contains 14 igneous, 12 sedimentary, and 12 metamorphic rocks. if 8 rocks are selected at…

A: Given  38rocks=14(igneous)+12(sedimentary)+12(metamorphic)

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Q: Hank is holding a red lollipop that is 20% to be cherry, 30% to be strawberry and 50% to be…

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A: Given that  Sample size n =38 Favorable cases x =22 Sample proportion p^=x/n  =22/38 =0.5789 NOTE:-…

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A: From the given values, X=0, 1, 2 and Y=0, 1 Consider, PX=0=PX=0,Y=0+PX=0,Y=1               =0.1+0.2…

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Q: Problem #3: Let Z be the standard normal random variable. Problem #3(a): Problem #3(b): Problem…

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A: Binomial probability distribution has utilized.