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Lilyana runs a cake decorating business, for which 10% of her orders come over the telephone. Let C be the
number of cake orders Lilyana receives in a month until she first gets an order over the telephone. Assume the
method of placing each cake order is independent.
Find the probability that it takes fewer than 5 orders for Lilyana to get her first telephone order of the month.
You may round your answer to the nearest hundredth.
PC <5) =
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