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 areindependent. Using the Binomial distribution, what is the exact probability that more than 7 out of 10 these plants have red blossoms?