Problem

The manufacturer of a fertilizer guarantees that, with the aid of the fertilizer, 70% of planted seeds will germinate. Suppose the manufacturer is correct. If 6 seeds planted with the fertilizer are randomly selected, what is the probability that more than 3 of them germinate?
Carry your intermediate computations to at least four decimal places, and round your answer to two decimal places.
(If necessary, consult a list of formulas.)

Answer

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Answer

Final Answer: The probability that more than 3 of the 6 seeds germinate is 0.74.

Steps

Step 1 :This problem is a binomial probability problem. The probability of success, which is the germination of a seed, is given as 0.7. We are asked to find the probability that more than 3 seeds germinate out of 6. This means we need to find the probability that 4, 5, or 6 seeds germinate.

Step 2 :We can use the binomial probability formula to calculate this: P(X=k)=C(n,k)(pk)((1p)(nk)), where P(X=k) is the probability of k successes in n trials, C(n,k) is the number of combinations of n items taken k at a time, p is the probability of success, n is the number of trials, and k is the number of successes.

Step 3 :We can calculate this for k=4, 5, and 6 and sum the results to get the final probability. Let's denote p as the probability of success (0.7), and n as the number of trials (6).

Step 4 :Calculating for k=4, we get P(X=4)=C(6,4)(0.74)((10.7)(64)).

Step 5 :Calculating for k=5, we get P(X=5)=C(6,5)(0.75)((10.7)(65)).

Step 6 :Calculating for k=6, we get P(X=6)=C(6,6)(0.76)((10.7)(66)).

Step 7 :Adding these probabilities together, we get the total probability that more than 3 seeds germinate.

Step 8 :Final Answer: The probability that more than 3 of the 6 seeds germinate is 0.74.

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