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1.Suppose x is a random variable best described by a uniform probability distribution with c = 3 and d = 7
a. find f(x)
b. find the mean and standard deviation of x
2. Suppose x is a random variable best described by a uniform probability distribution with c = 20 and d = 45
b. Find the mean and standard deviation of x
c. Graph f(x) and locate mean (u) and the interval u+ or - 2 sigma on the graph. Note that the probability that x assumes a value within the interval mean (u)+ or - 2sigma is equal to 1
providing excellent customer service is essential in any business. a bank samples 7 tellers and monitors the time to
What is the present value of an annuity in which $200 is paid each year for 10 years, assuming a discount rate of 6% and the first payment is received one year
Construct a 95% confidence interval for the mean number of months elapsed for students participating in this program. Interpret your results.
you are evaluating two portfolios for your personal investment on the basis of their return.portfolio as yearly return
The owner randomly chooses a cake and it is burned. What is the probability that the cake was made by Baker 1?
What is the best way for audience differences to be reflected in approaching communication channels?
You will need a computer program that simulates a large number of binomial random variables at once for this exercise.
Compute the Spearman correlation coefficient for the data listed in given Exercise.- Convert the following scale data to ordinal or ranked data, starting with a rank of 1 for the smallest data point.
Question 1: In the game of roulette, there is a wheel with spaces marked 0 through 36 and a space marked 00.
Specify the precise form of the test. For example, specify that the t test is for two population means with related samples, or that the c2 test is for two variables, or that the F test is for repeated measures.
a. Was this a paired or a two-sample study? b. Was this an observational study or an experiment?
Determine the percentage of residences in the country that are rentals.
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