Question

Solve the question plsss plss answer

Answer 1

Answer:

1)Mean= ∑(xifi)/N=(12*1+13*3+14*9+15*12+16*8+17*7)/40 =15.1

mode= highest frequency=15 (beacaude frequency of 15 is max)

2)mean=(112*3+114*7+116*6+118*10+120*4)/30=116.33

mode=118        

Step-by-step explanation:

Answer 2

Answer:

12

$122\pi \geqslant$