Quick picks on statistics

Exercise and reference answers

Questions

1. Question

   The measure independent of units is the:

   Choices

   1. Coefficient of variation
   2. Range of the series
   3. Mean of the series

   Correct choice

   Coefficient of variation

2. Question

   For grouped data each class is replaced by its:

   Choices

   1. End point
   2. Mid-point
   3. Max point

   Correct choice

   Mid-point

3. Question

   A lesser C.V. means the series is more:

   Choices

   1. Variable
   2. Vulnerable
   3. Consistent

   Correct choice

   Consistent

4. Question

   With an even count the median is the mean of the:

   Choices

   1. Two middle ones
   2. Two lowest ones
   3. Two highest ones

   Correct choice

   Two middle ones

Instructions

Tap the correct answer before the round moves on.

Explanation