Independence from Two Way Tables

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%

Of the times when the forecast called for rain, what is the percentage that it actually rained?

• About 90%

• About 50%

• About 70%

• About 80%

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

What is the probability you select a person who would pick chocolate?

• .398

• .342

• .26

• .686

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

• 38%

• 47%

• 25%

• 54%

How many females were surveyed?

• 10

• 16

• 26

• 14

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

• 91

• 52%

• 17%

• 35%

What is the relative frequency (to the nearest percent) of boys among those who cannot bike to school? 

• 4%

• 14%

• 13%

• 29%

How many total have no cell phone?

• 13

• 9

• 22

• 100

How many sophomores like burritos and pizza?

• 6

• 5

• 11

• 50