Question

Statistical calculations in classified data are based on ______ 

Options

• the actual values of observations

• the upper-class limits

• the lower class limits

• the class midpoints

Answer 1

Statistical calculations in classified data are based on the class midpoints.

Explanation: 

The option the class midpoints is correct.

The calculations in classified data or continuous series are based on the class midpoints. The items in a continuous series cannot be exactly measured. Consequently, the class midpoints are calculated.