True or false: describing data

Exercise and reference answers

Questions

1. Statement is true

   No

   Statement

   Standard deviation can be negative.

2. Statement is true

   Yes

   Statement

   You find the variance before the standard deviation.

3. Statement is true

   Yes

   Statement

   Right skew usually pulls the mean above the median.

4. Statement is true

   No

   Statement

   Skewed left means most data sits on the left.

5. Statement is true

   Yes

   Statement

   The IQR uses only the middle half of the data.

Instructions

Tap True or False for each statement.

Explanation