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X is the number of returns that I get , the distribution of x is a binomial probability distribution. What is the number of trials (n) probability success (p) and probability fail (q) respectively . What is the probability that I return at least 1 of the 10 serves from my opponent?
The amount of time (in minutes) that an executive of a certain firm talks on the telephone is a random variable having the probability density
Find a 99% confidence interval for the population variance in speed of the rocket car.- What assumptions did you make in constructing these two confidence intervals?
To assess opinion of students at Ohio State University about campus safety, reporter for student newspaper interviews 15 students she meets walking on campus.
Are there any cities that appear to be outliers because they don't fit the pattern of the rest of the data? If so, which city or cities are they?
suppose we have a population of scores with a mean micro of 975 and a standard deviation s of 15. assume that the
What changes in social customs and attitudes came about in Europe as a result of the Black Death?
in random sampling each item or element of the population has an equal chance of being chosen at each draw. a sample is
Rhe frequency distribution summarizes a sample of times (in minutes) between eruptions of a cretain geyser. Find the approximate population mean and approximate population standard deviation of the data.
an index of two store items for 2007 based on 2004 is to be constructed. the information for the prices and quantities
A steel pipe fittings company claims that the yield strength of its nontempered couplings is more variable than that of its tempered couplings. A random sample of nine tempered couplings has a standard deviation of 13.1 megapascals
A person enters a grocery store to shop. There are 15 different brands of cereal and they select 3, one for the next 3 days with order being important. They have 2,730 different combinations. What is the probability of getting ANY ONE of the co..
According to the norms established for a reading comprehension test, eighth graders should average 84.3 with a standard deviation of 8.6. If 45 randomly selected eighth graders from a certain school district averaged 87.8, use the four steps in th..
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