Mathematics, 10.03.2020 01:02 mariahbrooks
Hotels, like airline, often overbook, counting on the fact that some people with reservations will cancel at the last minute. A certain hotel chain finds 20% of the reservations will not be used. Let the Binomial random variable X be the number of reservations canceled. If we randomly selected 15 reservations, what is the probability that more than 8 but less than 12 reservations will be used?
Answers: 2
Mathematics, 21.06.2019 19:20
1- is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis. 2- what do you think the product of a nonzero rational number and an irrational number is? is it rational or irrational? make use of variables, the closure property of integers, and possibly a proof by contradiction to prove your hypothesis. 3- why do we have to specify that the rational number must be nonzero when we determine what the product of a nonzero rational number and an irrational number is? if the rational number were 0, would it give us the same result we found in part b?
Answers: 3
Hotels, like airline, often overbook, counting on the fact that some people with reservations will c...
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