Spot the one that does not belong

Exercise and reference answers

Questions

1. Items

   1. Mean
   2. Range
   3. Mean deviation

   Odd item

   Mean

2. Items

   1. Mean
   2. Standard deviation
   3. Median

   Odd item

   Standard deviation

3. Items

   1. Absolute deviation
   2. Squared deviation
   3. Frequency

   Odd item

   Frequency

4. Items

   1. x̄
   2. σ
   3. σ²

   Odd item

   x̄

Explanation