14.31 Genetics. According to genetic theory, the blossom color in the second generation of a certain cross of sweet peas should be red or white in a 3:1 ratio. That is, each plant has probability 3/4 of having red blossoms, and the blossom colors of separate plants are independent. blickwinkel/Alamy Stock Photo a. What is the probability that exactly three out of four of these plants have red blossoms? b. What is the mean number of red-blossomed plants when 60 plants of this type are grown from seeds? c. What is the probability of obtaining at least 45 red-blossomed plants when 60 plants are grown from seeds? Use the Normal approximation. If your software allows, find the exact binomial probability and compare the two results.

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14.31 Genetics. According to genetic theory, the blossom color in the second
generation of a certain cross of sweet peas should be red or white in a 3:1 ratio.
That is, each plant has probability 3/4 of having red blossoms, and the blossom
colors of separate plants are independent.
blickwinkel/Alamy Stock Photo
a. What is the probability that exactly three out of four of these plants have
red blossoms?
b. What is the mean number of red-blossomed plants when 60 plants of this
type are grown from seeds?
c. What is the probability of obtaining at least 45 red-blossomed plants when
60 plants are grown from seeds? Use the Normal approximation. If your
software allows, find the exact binomial probability and compare the two
results.
Transcribed Image Text:14.31 Genetics. According to genetic theory, the blossom color in the second generation of a certain cross of sweet peas should be red or white in a 3:1 ratio. That is, each plant has probability 3/4 of having red blossoms, and the blossom colors of separate plants are independent. blickwinkel/Alamy Stock Photo a. What is the probability that exactly three out of four of these plants have red blossoms? b. What is the mean number of red-blossomed plants when 60 plants of this type are grown from seeds? c. What is the probability of obtaining at least 45 red-blossomed plants when 60 plants are grown from seeds? Use the Normal approximation. If your software allows, find the exact binomial probability and compare the two results.
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