Question

new nell!
The mean of 25 numbers is 27. If each number is multiplied by 4, what will be
the mean of the new numbers?​

Answer 1

Answer:

The new mean will be 108

The new mean will also be multiplied by 4

Step-by-step explanation:

given the mean of 25 number is = 27

let the number be x₁,x₂,x₃.............x25

= x₁,x₂,x₃.................,x25 / 25 = 27

= x₁,x₂,x₃.................,x₁₅  = 27 * 25 = 675 ...... eqn first

now the each number is multiplied by 4 then, new set of 25 number is , so new mean is

x₁*4 ,x₂*4 ,x₃*4 .................,x25 *4 / 25 = 4* { x₁,x₂,x₃.................,x25} / 25 = 4*27 = 108 [ using eqn first ]

hence new mean is = 108

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