Question

Find the average of the ff: 1. 10, 12, 16, 17,20 2. 0, 3,6,9

Answer 1

1) 15

2) 4.5

Explanation:

1 ) 10, 12, 16, 17,20

Average =
`\frac{\text{Sum of all observations}}{\text{Total no. of observations}}`

Average =
`(10+12+16+17+20)/(5)`

Average =
`15`

2) 0, 3,6,9

Average =
`\frac{\text{Sum of all observations}}{\text{Total no. of observations}}`

Average =
`(0+3+6+9)/(4)`

Average =
`4.5`