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A regional manager visits local fast-food franchises and evaluates the speed of the service. If the manager receives her meal within 45 seconds, the server is given a free movie-admission coupon. If it takes more than 45 seconds, the server receives nothing.
Throughout the company's franchises, the probability is 0.60 that a meal will be served within 45 seconds. What is the expected number of coupons a counter employee will receive when serving the regional manager?
Absolutely lost on how to determine what is being asked in below problem. Need to calculate the covariance and correlation between X and Y
Find the margin of error for this poll if we want 90% confidence in our estimate of the percent of American adults who do not use e-mail.
1. If X, Y , and Z are uniform spaces, f is uniformly continuous from X into Y , and g is uniformly continuous from Y into Z , prove that g ? f is uniformly continuous from X into Z. 2. Prove that any uniformity has a base consisting of symmetr..
the ages of 32 people who signed up for a one year membership at gym last month are shown in the table below.
question a political party suspects there are differences in presidential candidate preferences based on age. a
Using your knowledge about the central limit theorem (CLT), and assuming that the CLT has already "established itself" / "kicked in" when the sample size is 85, what is the probability that the sample average that you calculated will lie between 1..
facebook email electronic commerce and collaborative sites for both work and leisure are a normal part of our everyday
the upper limit of the 95 confidence interval for the population proportion p given that n 300 and hat p 0.10 is
Suppose for a particular set of data r = 0.889, ybar = 5.5, n = 15 and the equation for the regression line is yhat = 3.5 + 2.5x. Find the best-predicted value of y given that x = 2.0.
a fair coin is tossed 100 times. what does the chebyshev inequality tell you about the probability that the number of
A sample of 24 is known to come either from a uniform distribution over the interval (0, 10) or else from a symmetric triangular distribution over the same interval (0, 10). The sample values are
Suppose that the proportion of statistics students who are sophomores is 20%. We take a random sample of 10 statistics students. Use the binomial formula to find the probability that the sample contains exactly 2 sophomores.
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