Answer
a. 0.06
b. 0.5
c. 0.94
Work Step by Step
Note: it says half of the college graduates so P(married and graduate) is 0.44 * 0.5 = 0.22
a. P(not married and not graduate)
= 1 - P(married or graduate)
= 1 - (P(married) + P(graduate) - P(married and graduate))
= 1 - P(married) - P(graduate) + P(married and graduate)
= 1 - 0.72 - 0.44 + 0.22
b. P(married and not graduate) = P(married) - P(married and graduate)
= 0.72 - 0.22
= 0.5
c. P(married or graduate) = P(married) + P(graduate) - P(married and graduate)
= 0.72 + 0.44 - 0.22
= 0.94
