Statistics

Statistics

7 marks

A box contains \(100\) cards. Each card has a number between one and six written on it.
The following table shows the frequencies for each number.

Number\(1\)\(2\)\(3\)\(4\)\(5\)\(6\)
Frequency\(26\)\(10\)\(20\)\(k\)\(29\)\(11\)
  1. Calculate the value of \(k\).

    [2]
  2. Find

    [5]
    1. the median;

    2. the interquartile range.

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Answer:(a) \(k=4\) (b)(i) \(3\) (ii) \(4\)

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