See Problem 2.

Identify the outlier of each set of values.

9. 3.4 4.5 2.3 5.9 9.8 3.3 2.1 3.0 2.9
10. 17 21 19 10 15 19 14 0 11 16

See Problems 3 and 4.

11. Weather The table shows average monthly temperatures of two cities. How can you compare the temperatures?

    	J	F	M	A	M	J	J	A	S	O	N	D
    Jacksonville, Florida	52.4	55.2	61.1	67.0	73.4	79.1	81.6	81.2	78.1	69.8	61.9	55.1
    Austin, Texas	48.8	52.8	61.5	69.9	75.6	81.3	84.5	84.8	80.2	71.1	60.9	51.6

Make a box-and-whisker plot for each set of values.

12. 12 11 15 12 19 20 19 14 18 15 16
13. 120 145 133 105 117 150 130 136 128

See Problem 5.

Find the values at the 30th and 90th percentiles for each data set.

14. 6283 5700 6381 6274 5700 5896 5972 6075 5993 5581
15. 7 12 3 14 17 20 5 3 17 4 13 2 15 9 15 18 16 9 1 6

B Apply

Identify the outlier in each data set. Then find the mean, median, and mode of the data set when the outlier is included and when it is not.

16. 947 757 103 619 661 582 626 900 869 728 1001 596 515
17. 87 104 381 215 174 199 233 186 142 228 9 53 117 129
18. 49 57.5 58 49.2 62 22.2 67 52.1 77 99.9 80 51.7 64

19. Think About a Plan Use the water temperature data for the eastern coast of the Gulf of Mexico during the summer months, as shown in the graph below. Find the quartiles by graphing a box-and-whisker plot of the data.

    
    Image Long Description

    Gulf of Mexico Eastern Coast Water Temperatures ( ° F ) open degrees cap f close

    • What information can you get from the graph?
    • How can you use that information to make a box-and-whisker plot?
    • How can you find the quartiles using your box-and-whisker plot?

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