This math skill involves calculating the average number of items (pizzas) per day for individual series (each store) and then finding the combined average across multiple series. The process includes adding totals from each series and dividing by the number of days.
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Calculate averages of two series graph
Test your understanding of calculate averages of two series graph by practicing it! Work through the below exercises to use it in practice.
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Let's find the average pizzas per day that Jane's made, and the average pizzas per day overall.
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Jane's has a total of 12 pizzas if we add up the individual days
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The average per day is the total, divided by the number of days. So it's 12 over 3, or 4 pizzas per day.
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Frank's made a total of 9 pizzas.
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If we add these together, we have 21 total pizzas in 3 days, for an overall average of 7 pizzas per day across both stores.