Question

the mean of 5 number is x if we multiply by 4 from each number then what is new mean​

Answer 1

Answer:

The new mean is 4x

For example the 5 numbers are 1,2,3,4,5

Mean =(1+2+3+4+5) /5=3

Multiply each number by 4

The numbers are 4,8,12,16,20

New mean =4+8+12+16+20)/5=60/5=12=4(old mean)

Answer 2

The new mean is 4x

For example the 5 numbers are 1,2,3,4,5

Mean =(1+2+3+4+5) /5=3

Multiply each number by 4

The numbers are 4,8,12,16,20

New mean =4+8+12+16+20)/5=60/5=12=4(old mean)