Mathematics, 07.05.2020 07:00 Hadi3405
Takumi's favorite clothing store is a large store with a large inventory. Many items are on sale, but the store has
a strange policy. You cannot find out if an item is on sale until you check out at the register. The store boasts
that 60% of the items in the store are on sale. Takumi is curious and calls the company headquarters. They
confirm that the items are all independently on sale.
a. As Takumi is checking out, what is the probability that the first item on sale is the third item checked out?
b. If he purchases 8 items of clothing, what is the probability that 5 of them will be on sale?
c. If Takumi plans to purchase a large number of items, what is the probability that he will have to wait longer
than 4 items before seeing the first item on sale?
Answers: 1
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Ben bowled 124 and 188 in his first two games. what must he bowl in his third game to have an average of at least 160?
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Do social recommendations increase ad effectiveness? a study of online video viewers compared viewers who arrived at an advertising video for a particular brand by following a social media recommendation link to viewers who arrived at the same video by web browsing. data were collected on whether the viewer could correctly recall the brand being advertised after seeing the video. the results are given below.correctly recalled the brandarrival 409153browsing20484b. conduct the hypothesis test, using the 0.025 level of significance.what is the value of the test statistic? χ2stat=what is the p-value? p-value=is this value significant atα=0.025?
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