11.6 Two Way Frequency Tables

11.6 Two Way Frequency Tables

Vocabulary

• Frequency - the number of times an even occurred

• Relative Frequency - frequency expressed as a percentage of the total

How to find relative frequency

• Divide the frequency number by the total number of data points

• Example:  $\frac{40}{90}=0.44$  

  
  

Analyzing frequency tables:

• If the school wanted to cater to female athletes, what types of sports should they offer?

Multiple Choice

If the concession stand wanted to make the most money possible, which type of drink should they sell?

• Soda

• Water

• No drinks

Fill in the Blanks

What is the relative frequency of customers who chose soda as their drink? (write your answer as a decimal)

Fill in the Blanks

What is the probability (same thing as relative frequency) of a male choosing basketball as his preferred sport? Write your answer as a decimal rounded to the nearest hundredth.