Ten > Statistics

Asked by Basanta · 1 year ago

The weight of 20 students is presented here in the table.

Weight in kg	40-50	50-60	60-70	70-80
No. of students	4	5	7	4

1. In a continuous series, what does m represent in the formula ($\rm\overline X$)=$\rm \frac {\sum fm}{N}$ to calculate mean? Write it. 
2. Find the median class of the given data.
3. Calculate the average weight from the given data.
4. Is the class of measure of central tendencies of the given data same? Justify it.