Question

I have a doubt in this question

Answer 1

$mean = \frac{sum \: of \: datas \: }{total \: no. \: of \: datas} \\ 1) \: \: mean = \frac{1 + 2 + 3 + 4 + 5}{5} \\ = \frac{15}{5} \\ = 3$

Answer 2

Answer:

Step-by-step explanation: