Probability and Two Way Frequency Tables

Of the 400 people who purchased concessions, 50% of them bought a soda. This is an example of

• Joint Frequency

• Marginal Frequency

• Joint Relative Frequency

• Marginal Relative Frequency

• Conditional Relative Frequency

Which of the following formulas will correctly calculate the percentage of males who prefer basketball?

• 15 / 48 * 100

• 48 / 15 * 100

• 15 / 48

• 48 / 15

Which demographic is more likely to choose basketball as their favorite sport?

• Males

• Females

• Males and Females have the same probability of choosing basketball.

• Can't be determine from the chart alone.

According to the table, what is the relative frequency of students ages 10 - 13 who eat breakfast?

• About 33%

• About 50%

• About 40%

• About 44%

Out of those surveyed, what is the probability that the student is a boy who can't bike to school (in simplest form)?

• 4/30

• 7/30

• 2/15

• 14/30

What percentage of males drive sports cars?

• 35%

• 16.25%

• 65%

• 25%

According to the two-way table, a person who plays an instrument is most likely to:

• Not play an instrument

• Not play a team sport

• Play a team sport

• All of the above

Of the mechanical engineers, what is the probability that math is their favorite subject?

• 91

• 52%

• 17%

• 35%

Identify the join relative frequency of boys that have blond hair.

• .4

• 0.1

• 0.44

• 0.2

What percent of people who attended the basketball game also attended the school play?

• 38%

• 47%

• 25%

• 54%