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Mr. Smith works on the 13th floor of a 15 floor building. The only elevator
Moves continuously through floors 1, 2, . . . , 15, 14, . . . , 2, 1, 2, . . . , except that it stops on a floor on which the button has been pressed. Assume that time spent loading and unloading passengers is very small compared to the travelling time.
Mr. Smith complains that at 5pm, when he wants to go home, the elevator almost always goes up when it stops on his floor. What is the explanation?
Now assume that the building has n elevators, which move independently. Compute the proportion of time the first elevator on Mr. Smith's floor moves up.
a coin is tossed 4 times and the sequence of heads and tails is observed.a. what is the probability that heads and
Jared bets on the number 7 for each of 100 spins of a roulette wheel. Because P(7) = 1/38 he expects to win two or three times. What is the probability that Jared will actually win two or more times?
suppose that a player is a 75 shooter in the first throw and a 80 shooter in the second if the first one is scored but
An airline estimates that 90% of people booked on their flights actually show up. If the airline books 71 peopleon a flight for which the maximum number is 69, what is the probability that the number of people who show up will exceed the capacity ..
assume that you are testing ho p .5 vs. ha p gt .5 and that based on the collected data the p-value of the test is
about 34 of americans have type a blood. a blood drive gets 140 donors. what is the probability that at least 40 of
It is important for airlines to know the approximate total weight of the baggage carried on each airplane. An airline researcher believes that the mean baggage for each adult is 60 kg. To test his belief, he draws a random sample of 50 adult passenge..
On the other hand, with Chemical B, both groups are treated the same. Let X andY denote the expected increase in the number of deaths in Groups 1 and 2, respectively, and denote a decision maker's utility function as
consider an x-bar chart where the x-bar statistic is normally distributed and an associated x-bar control chart exists.
I work in Aerospace Engineering. Aerospace components are often subjected to cyclic loads and can fail in "fatigue". The designers design the parts against fatigue failures using the "fatigue life" of the materials, typically obtained by testing the ..
Correct answerThe "average" amount of error expected in predictions The number of cases that have a non-zero residual The strength of the correlation between X and Y
Develop a point of the population standard deviation for life expectancy of VCRs.
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