: Lily runs a cake decorating business, for which 10% of her orders come over the telephone. Let c be the no- of cake orders Lily receives in a month untill she 1st gets order over phone. Assume the method of placing each cake order is independent. Find the probability that it takes fewer than 5 orders for Lily to get her 1st phone order of the month.
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John has probably forgotten the date of examination ( Being -- in
sorry taking some points
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