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Question: It can be shown that a sum of independent normally distributed random variables is also normally distributed. Do all functions of normal random variables lead to normal random variables? Consider the following. Super Drugs is a chain of drugstores with three similar-size stores in a given city. The sales in a given week for any of these stores is normally distributed with mean $15,000 and standard deviation $3000. At the end of each week, the sales figure for the store with the largest sales among the three stores is recorded. Is this maximum value normally distributed? To answer this question, simulate a weekly sales figure at each of the three stores and calculate the maximum. Then replicate this maximum 500 times and create a histogram of the 500 maximum values. Does it appear to be normally shaped? Whatever this distribution looks like, use your simulated values to estimate its mean and standard deviation of the maximum.
MATH1550H: Assignment: Question: A word is selected at random from the following poem of Persian poet and mathematician Omar Khayyam (1048-1131), translated by English poet Edward Fitzgerald (1808-1883). Find the expected value of the length of th..
MATH1550H: Assignment: Question: what is the least number of applicants that should be interviewed so as to have at least 50% chance of finding one such secretary?
MATH1550H: Assignment: Question: Experience shows that X, the number of customers entering a post office during any period of time t, is a random variable the probability mass function of which is of the form
MATH1550H: Assignment:Questions: (Genetics) What is the probability that at most two of the offspring are aa?
MATH1550H: Assignment: Questions: Let’s assume the department of Mathematics of Trent University has 11 faculty members. For i = 0; 1; 2; 3; find pi, the probability that i of them were born on Canada Day using the binomial distributions.
Caselet on McDonald’s vs. Burger King - Waiting time
Generate descriptive statistics. Create a stem-and-leaf plot of the data and box plot of the data.
Problems on Sampling Variability and Standard Error and Confidence Intervals
Estimate the population mean
Conduct a marketing experiment in which students are to taste one of two different brands of soft drink
Find out the probability
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