Question

I need help on these

Answer 1

a) x = 20

b) x = 9

Explanation:

Mean:

a)
`\boxed{\bf Mean =(sum \ of \ all \ the \ data)/(Number \ of \ data)}`

`(16 +x + 3 + 14 +57)/(5)=22\\`

x + 90 = 22*5

x + 90 = 110

x = 110 - 90

x = 20

b)

`\bf (4 + x + 5 +6 + 1)/(5) = 5`

x + 16 = 5 * 5

x + 16 = 25

x = 25 - 16

x = 9