What is the expected number of good grapefruit in a sack

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Reference no: EM13614704

It is estimated that 75% of a grapefruit crop is good; the other 25%have rotten centers that cannot be detected until the grapefruit are cut open. The grapefruit are sold in packs of 10. Let r be the number of good grapefruits in the sack.

(a) What is the probability of getting no more than one bad grapefruit in a sack? What is the probability of getting at least one good grapefruit in a sack?

(b) What is the expected number of good grapefruit in a sack?

Reference no: EM13614704

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