EXAMPLE 33Finding the -value with given area to its left
Recall that the th percentile is the value in the data set such that percent of the data values fall at or below that value. Thus, represents the 90th percentile of the distribution because it is greater than 90% of -values.
Find the -value with area 0.90 to its left.
Solution
NOW YOU CAN DO
Exercises 71–78.