Frequency tables: find the total of all the values
Multiply each value by its count, then add the products.
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A coach counted the goals scored in each game of a season. Results: 0 goals: 4 games; 1 goal: 3 games; 2 goals: 2 games; 3 goals: 5 games. How many goals are there in all?
Answer: 22
A teacher asked each student how many books they read this month. Results: 0 books: 5 students; 1 book: 3 students; 2 books: 1 student; 3 books: 2 students. How many books are there in all?
Answer: 11
A survey asked each family how many pets they have. Results: 2 pets: 4 families; 3 pets: 3 families; 4 pets: 5 families; 5 pets: 5 families. How many pets are there in all?
Answer: 62
Tip: Multiply each value by its count, then add the products.
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