Suppose P(C) = 98%; P(D) = 88%; and P(C or D) = 33%. Find P(C and D).
Can this really be a probability? If not, explain why not.

Ametal rod needs to be 9 feet and 5.5 inches in length. the sections of the poles being used are each 1 foot and 10.5 inches long. how many 1ft 10.5in sections would be needed to complete the 9ft 5.5in metal rod? and how many inches of material will be left?