Mathematics, 06.04.2020 18:43 jennsou

The time in days from the beginning of each year when the first bud appears on a pumpkin plant follows a continuous random variable 50 F(d) = P(D≤d)= (d-50^2)/2500.
(a) What is the probability that the plant will bud within 80.0 days of the beginning of the year?
(b) What are the expected value and standard deviation of the time in days when the first bud appears?

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