Which one does NOT belong?

Exercise and reference answers

Questions

1. Items

   1. Mean
   2. Median
   3. Class width
   4. Mode

   Reason

   Class width is the size of an interval, not a measure of the centre of the data.

   Odd item

   Class width

2. Items

   1. Grouped data
   2. Ungrouped data
   3. Cumulative frequency
   4. Tangent

   Reason

   A tangent is a line meeting a circle at one point, and belongs to geometry rather than statistics.

   Odd item

   Tangent

Instructions

Tap the item that does not belong with the rest.

Explanation