Answer:
37.5% of 9 year olds prefer Superhero A
Explanation:
Lets initially understand the two-way relative frequency table.
Superhero A Superhero B
9-year-olds 0.375 0.625
This means that 37.5% of 9 year olds prefer Superhero A and 62.5% of 9 year olds prefer Superhero B.
Superhero A Superhero B
10-year-olds 0.667 0.333
This means that 66.7% of 10 year olds prefer Superhero A and 33.3% of 10 year old prefer Superhero B.
What percent of 9-year-olds prefer Superhero A?
37.5% of 9 year olds prefer Superhero A