Three of these are wrong. Find the one that holds.

Exercise and reference answers

Questions

1. Question

   Three of these statements about the mean are false.

   Choices

   1. Item

      It is a measure of central tendency

      Correct

      Yes

   2. Explanation

      That is what a measure of dispersion does.

      Item

      It measures how scattered the data is

   3. Explanation

      Every observation enters the total.

      Item

      It ignores extreme values

   4. Explanation

      A spread is needed alongside it.

      Item

      It fully describes a data set

Explanation