Warehouse Grocery Shop ping Therese manages a grocery warehouse that encourages volume shop ping on the part of its customers Therese has discovered that on any given weekday 70 of the customer sales amount to more than 100 That is any given sale on such a day has a probability of 0 70 of being for more than 100 Actu ally the conditional probabilities throughout the day would change slightly depending on earlier sales but this effect would be negligible for the first several sales of the day so we can treat them as independent Find the probability of each event Give answers to three decimal places 63 The first two sales on Wednesday are both for more than 100 049 64 The first three sales on Wednesday are all for more than 100 343 65 None of the first three sales on Wednesday is for more than 100 0 66 Exactly one of the first three sales on Wednesday is for more than 100 1