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The following histogram shows the scores on the first exam

The following histogram shows the scores on the first exam for a statistics class.

a. How many students took the exam?

b. What is the class interval?

c. What is the class midpoint for the first class?

d. How many students earned a score of less than70?

a. How many students took the exam?

b. What is the class interval?

c. What is the class midpoint for the first class?

d. How many students earned a score of less than70?

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