The table shows the distribution of ages of..

Question 1 Report

The table shows the distribution of ages of 22 students in a school.

Age (years)	12-14	15-17	18-20	21-23	24-26
Frequency	6	10	3	2	1

Using an assumed mean of 19, calculate, correct to three significant figures, the :

(a) mean age ; (b) standard deviation ; of the distribution.

Answer

Sets

The table shows the distribution of ages of 22 students in a school. Age (years) 12-14 15-17 18-20 21-23 24-26 Frequency 6 10 3 2 1 Using an assumed mean of...