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 Interactive Checkpoint
 Union of Sets:  The set of all elements that belong to at least one of the given two or more sets.

Answer the following questions about the union of a data set.
Enter each answer below and press tab to check
Graded Response

a)

S = {-2, 3, 4, 6, 9} and

R = {-3, 4, 5, 7, 20}

How many numbers are in the set R S ?

a)
b)23 students are taking math, 19 students are taking English, and 11 students are taking both math and English. How many students are taking math or English? b)