1. Table 3.8 gives the frequency distribution of the daily commuting times (in minutes) from home to work for all 26 employees of a company.

Daily Commuting Time Number of

(minutes) Employees	Frequency F
0 to less than 10	5
10 to less than 20	3
20 to less than 30	6
30 to less than 40	8
40 to less than 50	4
TOTAL	26

1. Calculate the Mean[2 Marks]
2. Calculate the Variance[6 Marks]
3. Calculate the Standard Deviation[2 Marks]