Question

please answer this question of class 10​

Answer 1

Answer:

(x₁+3)+(x₂+3)+...+(xₙ+3)

= (x₁+x₂+...+xₙ) +3n

=nx′+3n ( as x bar sign is not available in my keyboard so i use x′)

mean = (1/n)(nx′+3n)=x′+3