1/2 (3x – 7) = 2(x - 3)

1. the following set of data represents the number of waiting times in minutes from a random sample of 30 customers waiting for service at a department store. 4 5 7 10 11 11 12 12 13 15 15 17 17 17 17 17 18 20 20 21 22 22 23 24 25 27 27 31 31 32 a. determine the number of classes and class interval.

How is the interquartile range calculated?

Type the next three numbers in a sequence 80, 90, 85, 95, 90, 100, 95, 105