24. Packaging A cereal company is choosing between two devices to package their cereal into bags. The box-and-whisker plots below show the weights of the bags packed by each device.

    
    Image Long Description

    Bag Weight (oz)

    1. Which device produces packages with a more consistent weight? Explain.
    2. Which device should be chosen if the manufacturer wants to minimize the number of packages with weights less than 17 oz? More than 17.2 oz? Explain.

C Challenge

25. Reasoning Can you find the mean, median, and mode of a data set by looking at a box-and-whisker plot? Explain.
26. Of 100 people that take a test, nine have scores greater than 93. What is the percentile rank of a score of 93?

Standardized Test Prep

GRIDDED RESPONSE

SAT/ACT

27. During one week, the employees of a small business work 17, 21, 42, 29, 12, 17, 18, 19, 27, and 36 h. What is the third quartile of this data set?
28. What is the range of the data set 100, 32, 101, 96, 89, 120, and 40?
29. Jared can clear his driveway of snow in 36 min. It takes his brother 48 min. To the nearest minute, how long does it take to clear the driveway if they work together?
30. To the nearest hundredth, what is the value of 15 ⋅ 7 3 ? square root of 15 dot , fraction 7 , over square root of 3 end fraction . question mark

Mixed Review

See Lesson 12-3.

Find the mean, median, and mode of each data set.

31. prize pumpkin weights (lb): 948 627 731 697 988 643 719 627
32. daily customers: 47 41 22 17 55 34 71 46 39 41 38 60 52

Get Ready! To prepare for Lesson 12-5, do Exercise 33.

See Lesson 5-7.

33. Bowling Make a scatter plot of the data below. Draw a trend line and write its equation. Predict the number of tenpin bowling establishments in 2015.

    Tenpin Bowling

    Year	2002	2003	2004	2005	2006
    Bowling Establishments	5973	5811	5761	5818	5566

    Source: United States Bowling Congress

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