The length of a petal on a certain flower varies from 2.89 cm to 7.29 cm and has a probability density function defined by f(x) = 1/2 squareroot x. find the probabilities that the length of a randomly selected petal will be as follows. a. greater than or equal to 4.7 cm b. less than or equal to 3.8 cm c. between 3.8 cm and 4.7 cm a. the probability that the length of a randomly selected petal is greater than or equal to 4.7 cm is. (round to four decimal places as needed.)