Mathematics, 12.01.2021 19:40, alanihuling
A recent report from the Postal Rate Commission Office of the Consumer Advocate concluded that 33% of three-day Priority mail was not delivered by the end of the third day. Suppose an impartial inspector checks the on-time delivery of a random sample of Priority packages at the time of the report
A. If the inspector randomly checks ten packages, what is the probability that at least one package did not arrive on time (by the end of the third day)?
B. What is the probability that the first Priority package delivered on time is the fourth package checked?
C. What is the expected number of packages that need to be checked to find the first that doesn’t arrive on time?
D. What is the expected number of packages that need to be checked to find the first that does arrive on time?
Answers: 1
Mathematics, 21.06.2019 13:20, payshencec21
The ratio of two numbers is 5 to 4. the sum of the numbers is 99. what number is the greater of the two numbers?
Answers: 1
Mathematics, 21.06.2019 14:30, snoodledoodlebop
anyone? find the second, fifth, and ninth terms of a sequence where the first term is 65 and the common difference is -7. 72, 93, 121 72, 79, 86 58, 37, 9 58, 51, 44
Answers: 1
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