Question

If the mean of 2,3,x,7 is 4.25 then what is the value of x

Answer 1

Mean = Sum of Observations/No. of Observations

$\longrightarrow$ 4.25 = (2 + 3 + x + 7)/4

$\longrightarrow$ 4.25 = (12 + x)/4

$\longrightarrow$ 4.25 × 4 = 12 + x

$\longrightarrow$ 17 = 12 + x

$\longrightarrow$ x = 17 - 12

$\longrightarrow$ x = 5

Answer 2

Step-by-step explanation:

2+3+x+7/4=4.25

12+x=4.25×4

12+x=17

x=5