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MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
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.
(a) What is the probability that exactly 3 out of 4 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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