Question

plss answer this plss fast​

Answer 1

Arthemetic mean= fixi/xi.

Step-by-step explanation:

so the answer is

10+15+20+25+30=100

10×4=40

15×6=90

20×3=60

25×2=50

30×5=150

Therefore,

40+90+60+50+150=390

fixi=390

xi=100

fixi÷xi=390÷100

∆ 3.9

∆∆Your answer is 3.9

Answer 2

Answer:

the formula is

mean= £fixi / £fi

=390 / 20

= 19.5

please mark as brainliests answer

how are you sumaiya