Stats Review

What is the probability that a student plays an instrument?

• 72.7%

• 55%

• 10%

• 2.2%

What is the probability that they speak French given they are a girl? 

• 2.14%

• 4%

• 40%

• 85.71%

For a two-way table, what is another word for a variable that is not numerical?

• Categorical Variables

• Numerical Variables

• Neither

What type of frequency is the sum of each column and row out of the table total?

• Conditional Frequency

• Marginal Frequency 

• Relative Frequency

• None of the above 

What percentage of males drive sports cars?

• 35%

• 16.25%

• 65%

• 25%

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

• About 20%

• About 18%

• About 14%

• About 12%

What is the probability you select a teen given that the person likes chocolate?

• 11.2%

• 26.7%

• 16.4%

• 5.6%

What is the probability a person bought shorts and shoes? 

• 44.4%

• 16.7%

• 61.1%

• 27.3%

How many people were surveyed?

• 54

• 34

• 88

• 17

How do you write 0.02 as a percent?

• 20%

• 200%

• 2%

• .02%