3/11/10

Test 5 Section 4 - #12 (page 654)

The median is just the middle number in a list. Since we're dealing with consecutive numbers, we can just list the 9 consecutive numbers that have 42 in the middle. If we want to be really careful, we can start in the middle and work outward until we have 9 numbers:

42
41, 42, 43
40, 41, 42, 43, 44
39, 40, 41, 42, 43, 44, 45
38, 39, 40, 41, 42, 43, 44, 45, 46


What's the largest number in our list?  46.

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