Answer:
So if he wants the highest chance to get a calculator he should pick bag 3(Bracket 3)
It is becouse it has the biggest percentage and the biggest frequency of pulling out a calculator
Explanation:
Bracket 1
18 + 18 = 36
18 ÷ 16 = 50%
Bracket 2
30 + 20 = 50
30 ÷ 50 = 60%
Bracket 3
21+9= 30
21 ÷30 = 70%
Bracket 4
13 + 20= 33
13 ÷ 33 = 39.(39)%