Question: Suppose four plants are to be chosen at random from the corn plant population of Exercise 4.S.4. Find the probability that none of the four

Suppose four plants are to be chosen at random from the corn plant population of Exercise 4.S.4. Find the probability that none of the four plants will be more than 150 cm tall.
Exercise 4.S.4
The heights of a certain population of corn plants follow a normal with mean 145 cm and standard deviation 22 cm.

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