Question

The data represent the number of customers waiting for a table at 7 pm for 40 consecutive Saturdays.

9,9,8,9,4,9,11,6,

13,10,6,8,4,7,5,10,

10,11,8,3,6,7,6,10,

13,11,12,6,10,7,9,10,

9,9,8,9,4,9,11,6.

Fill this table for absolute and relative frequencies.

Number of customers	Frequency
1-3
4-6
7-9
10-12
13-15