Mathematics, 06.11.2019 05:31 acalvario2019
Every day jo practices her tennis serve by continually serving until she has had a total of 50 successful serves. if each of her serves is, independently of previous ones, successful with probability .4 , .4, approximately what is the probability that she will need more than 100 100 serves to accomplish her goal?
Answers: 3
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Aproduction manager test 10 toothbrushes and finds that their mean lifetime is 450 hours. she then design sales package of this type of toothbrush. it states that the customers can expect the toothbrush to last approximately 460 hours. this is an example of what phase of inferential statistics
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