The accompanying table describes results from eight offspring peas. The random v

ID: 3364307 • Letter: T

Question

The accompanying table describes results from eight offspring peas. The random variable x represents the number of offspring peas with green pods.

0.002

a. Find the probability of getting exactly 7 peas with green pods.

b. Find the probability of getting 7 or more peas with green pods.

c. Which probability is relevant for determining whether 7 is an unusually high number of peas with green pods, the result from part (a) or part (b)?

d. Is 7 an unusually high number of peas with green pods? Why or why not? Use 0.05 as the threshold for an unusual event.

A. Yes, since the appropriate probability is greater than 0.05, it is an unusually high number.

B. No, since the appropriate probability is less than 0.05, it is not an unusually high number.

C. Yes, since the appropriate probability is less than 0.05, it is an unusually high number.

D. No, since the appropriate probability is greater than 0.05, it is not an unusually high number.

Probabilities of numbers of peas with green pods among 8 offspring peas

a) P(Exactly 7 peas) = 0.248 [From the table]

b) P(7 or more)

= P(7) + P(8)

= 0.248 + 0.107

= 0.355

c) 7 or more is relavant i.e. part b) probability is more relavant.

d) No, since the appropriate probability is greater than 0.05, it is not an unusually high number.

Option D is correct.

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