Given the following data set: 111, 122, 133, 149, 126, 117, 101, 121 Find the value of the interquartile range (IQR).
a 15.5
b. 20.7
C75.6
d 25.3
Can some one help me pls

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.

You call the pizza store and find out that eachpizza has 12 slices. you expect 16 people tocome, and you estimate each person will eat 3slices. how many pizzas should you order

Find the solution set of this inequality. select the correct graph. |8x+16|> 16