Statistics - Finding Unknowns from Averages and Spread

Statistics - Finding Unknowns from Averages and Spread

IP 1
5 marks

The table shows the number of books read by a group of students during the holidays.

Number of books\(0\)\(1\)\(2\)\(3\)\(4\)
Number of students\(2\)\(5\)\(x\)\(4\)\(1\)

  1. The mean number of books read is \(1.8\). Find \(x\).

    [3]

  2. Find the median number of books read. Show how you identify the middle observation.

    [2]

Solution:

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Answer:(a) \(x=3\) (b) \(2\) books

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