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Find Mean and standard deviation of uniform distribution. Recall that the following result was obtained in lecture: if a random variable X takes on the each of the values, 0, 1... 9 with probability 1/10 then
E[X] = 9/2 and Var[X] = 33/4.
Consider a four digit uniform random number generator; as in each of the 10,000 values 0.0000 through 9999 is equally likely. Find the mean and variance of the values produced by such a random number generator.
Given 7 male individuals in a Physical Education course, the number of sit ups each individual can do in a one minute period was recorded:
Explain how much money do these people make each year. Suppose you read in your local newspaper that 45 officials in student services whioch is earned as an average.
If student is chosen at random, determine the probability that he or she is sophomore and owns a credit card.
what is the required sample size is the error is to be less than 1/2 hour with a 95% level of confidence?
The City Transit Authority plans to hire 8 new bus drivers. From the group of 100 qualified applicants, of whom 55 are men and 45 are women, 8 names are to be selected by lot. Suppose that Mary and John Lewis are among the 100 qualified applicants..
Sales manager wishes to award sales representatives who earn the largest commissions a bonus of= $1,000 .He can award bonus to 20% of representatives. Determine cutoff point between those who earn bonus and those who don't?
Roger has read a report that the weights of adult mail Siberian tigers have a distribution which is approximately normal with mean μ = 390 lb and σ = 65 lb.
You will investigate four different scenarios of population growth also decline in this town. Graph the model as well as investigate it by four different growth models.
Test hypothesis that both propellants have same mean burning rate. Utilize α=0.05. Compute the P value.
In what sense is this business problem? A societal problem? An individual problem?
For monthly volume of 300 tables, find out total cost, total revenue and profit.
The daily numbers of calls received by the Internal Revenue Service office in July are shown below:
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