A scientist conducted a hybridization experiment using peas with green pods and

ID: 3134714 • Letter: A

Question

A scientist conducted a hybridization experiment using peas with green pods and yellow pods. He crossed peas in such a way that 25% (or

139). of the 556 offspring peas were expected to have yellow pods. Instead of getting 139

peas with yellow pods, he obtained 143 Assume that the rate of 25% is correct.a. Find the probability that among the

556 offspring peas, exactly 143 have yellow pods.b. Find the probability that among the 556

offspring peas, at least 143 have yellow pods.

c. Which result is useful for determining whether the claimed rate of 25% is incorrect? (Part (a) or part (b)?)

d. Is there strong evidence to suggest that the rate of 25% is incorrect?

a. The probability that exactly 143 have yellow pods is nothing .Round to four decimal places as needed.)

Find the probability that among the 556 offspring peas, exactly 143 have yellow pods

Probability = 143 / 556 = 0.2572

Probability at least 143 = 1 - 143 / 556 = 0.7428

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