Spot the intruder

Exercise and reference answers

Questions

1. Items

   1. Mean
   2. Median
   3. Mode
   4. Variance

   Odd item

   Variance

2. Items

   1. Variance
   2. Standard deviation
   3. Range
   4. Median

   Odd item

   Median

3. Items

   1. cosh
   2. sinh
   3. tanh
   4. log

   Odd item

   log

Instructions

Three belong together. Tap the one that does not.