True or false on statistics

Exercise and reference answers

Questions

1. Statement is true

   No

   Statement

   Central tendency alone describes data fully.

2. Statement is true

   Yes

   Statement

   Range is maximum minus minimum.

3. Statement is true

   Yes

   Statement

   Deviations from the mean sum to zero.

4. Statement is true

   No

   Statement

   Mean deviation uses squared deviations.

5. Statement is true

   Yes

   Statement

   Standard deviation has the units of the data.

6. Statement is true

   No

   Statement

   Coefficient of variation carries units.

Instructions

Decide whether each statement is true or false.

Explanation