Hello!
Convert the percentages to decimals by dividing them by 100, and then multiply them by the amount of boys and girls.
53 ÷ 100 = 0.53 as a decimal
0.53 × 300 girls = 159
This means that 159 of the 300 girls play sports.
Repeat this to calculate how many boys play sports.
39 ÷ 100 = 0.39
0.39 × 500 = 195
This means that 195 out of the 500 boys play sports.
Final Answer:
More boys play sports than girls.
Answer:
E(X) = 1.28
Var(X) = 0.6016
E(X | Y=2) = 1.6667
Var(X | Y=2) = 0.4272
Step-by-step explanation:
Answer:
4 17/25
Step-by-step explanation:
68
four and sixty-eight hundredths => 4 ------- or 4 34/50 or 4 17/25
100