Independence and Two Way Tables

Are the events "blonde" hair and "blue" eyes independent?

• Independent

• Not Independent

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 girls have blonde hair?

• 30%

• 32%

• 29%

• 40%

What percentage of the students were boys?

• 20%

• 25%

• 40%

• 50%

What percentage of SUV's are driven by women?

• 56.25%

• 75%

• 83.25%

• 86.5%

What percentage of males drive sports cars?

• 35%

• 16.25%

• 65%

• 25%

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%

What percentage of the days that it rained, did they forecast no rain?

• About 20%

• About 18%

• About 14%

• About 12%

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

A survey explored the relationship between gender and band class. Which is a reasonable conclusion?

• There are more band members than non-band members

• There are more boys in the class than girls

• There are more boys in band than not in band

• More than half of the bands members in the class are girls