Question
Tree heights: Cherry trees in a certain orchard have heights that are normally distributed with mean = 111 inches and standard deviation = 16 inches.
Tree heights:Cherry trees in a certain orchard have heights that are normally distributed with mean = 111
inches and standard deviation = 16
inches. Use the TI-84 PLUS calculator to answer the following. Round the answers to at least four decimal places.
(a) What proportion of trees are more than
120
inches tall?
(b) What proportion of trees are less than
93
inches tall?
(c) What is the probability that a randomly chosen tree is between
95
and
105
inches tall?
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What proportion of trees are more than
120
inches tall?
The proportion of trees that are more than 120 inches tall is . |
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