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Statistics - Mean of a Frequency Distribution

Statistics - Mean of a Frequency Distribution

IP 2
4 marks

The dot diagram below shows the number of movies that \(30\) students watched in a month.

  1. Calculate the mean number of movies watched by the students.

    [2]

  2. Based on the data above, is mean or median a better measure of the central tendency of the data set?

    [2]

Solution:

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Answer:(a) 2.7 movies (b) The median is better because 10 is an outlier that pulls the mean upwards.

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