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Refer to Exercise 5 69 Use the complementation rule to find

Refer to Exercise 5.69. Use the complementation rule to find the probability that a randomly selected senator in the 109th Congress is

Age (yr) No. of senators

Under 50 ........... 12

50–59 ........... 33

60–69 ........... 32

70–79 ........... 18

80 and over .......... 5

a. 50 years old or older.

b. Under 70 years old.

Age (yr) No. of senators

Under 50 ........... 12

50–59 ........... 33

60–69 ........... 32

70–79 ........... 18

80 and over .......... 5

a. 50 years old or older.

b. Under 70 years old.

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