saeedsas
Newbie level 4
Suppose a cereal manufacturer inserts either
one or two coupons randomly – from a set consisting of n types of
coupons – into every cereal box. How many boxes should one buy
on the average to collect at least one coupon of each type?
one or two coupons randomly – from a set consisting of n types of
coupons – into every cereal box. How many boxes should one buy
on the average to collect at least one coupon of each type?