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Overbooking of passengers on intercontincontinental flights is como practice among airlines. Aircraft which are capable of carrying 340 passengers are booked to carry 365 passengers. If on average 10% passengers who have booked fail to turn up for their flights, what is the aveage probability that at least one passenger who has a booking will end up without a seat on particular flight? Hint: apply the normal approximation to the binomial distibution.
a pew research center poll used telephone interviews to ask american adults if parents are pushing their kids too hard
The Dean of Students believes that the costs are greater this semester. What is the test value for this hypothesis?
Recent studies indicate that the typical 50-year-old woman spends $350 per year for personal-care products. The distribution of the amounts spent is positively skewed.
suppose duration of human pregnancies are somewhat skewed with mean 263 days and standard deviation of 19 days.
In checking the quality of the work, she notices that some slight blemishes occasionally are apparent. A sample of 20 pieces of work resulted in the following number of blemishes on each piece:
An owner of a fast food restaurant reported to corporate headquarters that the average bill paid by his customers in the last quarter was $6.20 and that the standard deviation was $1.90.
543 people were selected at random from a large population. 505 of them said they had the internet installed on their
Intersection of two mutually exclusive events: can be any value between 0 to 1, must always be equal to 1.
a sample of 200 elements from a population with a known standard deviation is selected. for an interval estimation of m
With a mean of 805 pairs of jeans and a standard deviation of 207 pairs. What is the probability that the company will make a profit each month?
You're the production manager for operation that produces circuit boards. Each board is tested at the end of manufacturing process. Rejected boards are discarded and have no future value.
A mortgage department of a large bank is studying its recent loans. Of particualr interest is how such factors as the value of the home (in thousands of dollars), education level of the head of the household, age of the head of the household, curr..
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