A city's baseball team coach recorded the ages of the players on the team. The players' ages are: {12, 16, 15, 12, 16, 14, 12, 16, 13} What is the interquartile range (IQR) of the players' ages? A.1 B.2 C.3 D. 4

2x - 20 = 32 20 - 3x = 8 6x - 8 = 16 -13 - 3x = -10

An office supply company conducted a survey before marketing a new paper shredder designed for home use. in the survey, 80 % of the people who tried the shredder were satisfied with it. because of this high satisfaction rate, the company decided to market the new shredder. assume that 80 % of all people are satisfied with this shredder. during a certain month, 100 customers bought this shredder. find the probability that of these 100 customers, the number who are satisfied is 69 or fewer.

Abag contains 10 white golf balls and 6 striped golf balls. a golfer wants to add 112 golf balls to the bag. he wants the ratio of white to striped gold balls to remain the same. how many of each should he add?