Question

What is the mean of 20,25,28,30,

Answer 1

25.75

Explanation:

20 plus 25 plus 28 plus 30 equals 103 and 103 divided by 4 is 25.75

Answer 2

`\boxed{ \bold{ \huge{ \boxed{ \bold{ \sf{25.75}}}}}}`

Explanation:

Given data : 20 , 25 , 28 , 30

Σx ( sum of all the items ) = 20 + 25 + 28 + 30 = 103

N ( total number of items ) = 4

Finding the mean

To find mean of the given data , divide the sum of all the items by the number of items.

`\boxed{ \sf{mean = (sum \: of \: all \: the \: items)/(the \: number \: of \: items)}}`

`\longrightarrow{ \sf{ (103)/(4)}}`

`\longrightarrow{ \sf{25.75}}`

Hope I helped!

Best regards! :D