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28 March, 11:49

Each night, Abby recorded how many pages of a book she read before going to bed. Her data is as follows: 7, 9, 10, 6, 8, 12, 5, 11, 48, and 13.

What is the mean number for pages she read each night?

What is the median?

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  1. 28 March, 12:19
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    mean = 12.9

    median = 9.5

    Step-by-step explanation:

    mean = sum of all observations / total no. of observations

    = 7+9+10+6+8+12+5+11+48+13 / 10

    =129 / 10

    = 12.9

    median = middlemost no. after arranging in ascending order

    = 5,6,7,8,9,10,11,13,48

    =9 and 10

    =9+10 / 2

    = 19 / 2

    = 9.5
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