For randomly selected Mombasa residents, the number of times they visit a clinic frequency distributions was obtained as follows
|
Classes (number of times one visit clinic)
|
7-9
|
10-12
|
13-15
|
16-18
|
19-21
|
22-24
|
25-27
|
|
Frequency
|
10
|
18
|
24
|
22
|
12
|
8
|
6
|
Using the table above:
i. Estimate mean, mode and median
ii. Estimate mean absolute deviation, variance and standard deviation