The heights of 10-year-olds, regardless of gender, closely
follow a Normal distribution with a mean of 54 inches and a
standard deviation of 7 inches.
a. What is the probability that a randomly chosen 10-year-old is
shorter than 49 inches? (Round to 4 decimal
places.)
b. If the tallest 10% of the class is considered "very tall", what
is the height cutoff for "very tall"? (Round to 2 decimal
places.)
The Heights Of 10 Year Olds Regardless Of Gender Closely Follow A Normal Distribution With A Mean Of 54 Inches And A S 1 (59.28 KiB) Viewed 74 times
The heights of 10-year-olds, regardless of gender, closely follow a Normal distribution with a mean of 54 inches and a standard deviation of 7 inches. a. What is the probability that a randomly chosen 10-year-old is shorter than 49 inches? (Round to 4 decimal places.) b. If the tallest 10% of the class is considered "very tall", what is the height cutoff for "very tall"? (Round to 2 decimal places.)
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