Question
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
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. (a) What is the probability that exactly 9 out of 12 of these plants have red blossoms? (b) What is the probability that at least 10 out of 12 of these plants have red blossoms? (c) What is the mean number of red-blossomed plants when 120 plants of this type are grown from seeds? With what standard deviation?
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