A survey of a magazine's subscribers indicates that 50% own a house,80% own a car,and 90% of the homeowners also own a car.What proportion of subscribers:
a.own both a car and a house?
b.own a car or a house,or both?
c.own neither a car nor a house?

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The Answer of A survey of a magazine's subscribers indicates that 50% own a house,80% own a car,and 90% of the homeowners also own a car.What proportion of subscribers:
a.own both a car and a house?
b.own a car or a house,or both?
c.own neither a car nor a house?

A Survey of a Magazine's Subscribers Indicates That 50% Own