Idiot\'s Guides Basic Math and Pre-Algebra

Check Point Answers 325

20.

21. The range of {34, 54, 78, 92, 101} is
    101 – 34 = 67.


22. The range of {3, 4, 5, 4, 7, 8, 9, 2, 10, 1} is
    10 – 1 = 9.


23. The interquartile range of {3, 4, 5, 4, 7, 8, 9,
    2, 10, 17, 32, 34, 36, 38} is 32 – 4 = 28.


24. The IQR of {2, 2, 2, 3, 3, 4, 4, 4, 4, 34, 54, 78,
    92, 101} is 54 – 3 = 51.


25. The standard deviation of the test scores
    {69, 70, 73, 74, and 74} is approximately
    2.345.

0 15 9 23 412617 8110113415 16 17 181920 21 2223 24 252627 28 29 31 32 33 34 35 36 37 38 39 40

x

30