Two Way Frequency Table Probability

How many people purchased no food and no drink?

• 60

• 10

• 20

• 200

What percent of the total population surveyed were electrical engineers that like math?

• 33.9%

• 48.6%

• 16.5%

• 21.7%

The table shows the different types of engineers and the subject they liked most.  What percentage of people surveyed were chemical engineers who preferred math?

• 16.5%

• 33.1%

• 17.6%

• 15.5%

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%

What is the relative frequency for selecting a teen given that the person likes chocolate?

• .112

• .267

• .164

• .056

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

Out of all those surveyed who wear shoes, what is the probability they were shorts(in simplest form)?

• 5/8

• 1/6

• 5/18

• 3/8

What is the probability that a student plays on a sports team given they don't play an instrument? 

• .7273

• .8

• .55

• .2222

If I calculate the probability 3/10 as the answer to a question, what was the question?

• P(plays instruments given does not play sports)

• P(plays instruments)

• P(does not play sports given plays instruments)

• P(does not play sports AND plays instruments)

39 ÷ 240 would calculate the _______________ of males who prefer Sports Cars.

• Marginal Frequency

• Joint Frequency

• Joint Relative Frequency

• Marginal Relative Frequency