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1. Suppose x is a random variable best described by a uniform probability distribution with c = 20 and d = 45
a. Find f(x)
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
2. Suppose x is a random variable best described by a uniform probability distribution with c = 3 and d = 7
How many heads do you expect to have at the end of 10 flips? What is the expected percentage of heads at the end of 10 flips?
questionthe table below gives the quarterly enrollment in a major american business college for the period
Suppose the systolic blood pressure Xand fasting blood sugar Y are jointly distributed as bivariate normal in some population with means 120 and 105, standard deviations 10 and 20, and correlation 0.7. Find the average fasting blood sugar of those..
A study was completed that examined the relationship between coffee consumption and level of stress for a group of 50 undergraduate students. The correlation was .373, and it was a two-tailed test, done at the .01 level of significance.
We are interested in testing the claim that the heights of men and the heights of women have different variances. Given that s = 6.60 for women
Written permission shall be obtained before medical records are made available to anyone not directly concerned with the patient's care.
HEIGHTS OF WOMEN The heights of 4000 women who participated in a survey were found to be normally distributed with a mean of 64.5 in. and a standard deviation.
Suppose the winnings of gamblers at Las Vegas are normally distributed with mean µ = -300 (the typical person loses $300), and standard deviation s = 100.
Using T-tests to compare the monthly performances of 'XXX Corp' and 'YYY Inc'. Check how sample periods affect your conclusion.
Research Scenario: Children who experience chronic pain as a result of medical procedures are the focus of a psychiatrist's study. Specifically,
This problem related to Basic Statistics and it discuss about computing the mean number of job in line and the mode of the number of jobs in line. The calculations have been given in the solution
what is the probability that the average of the scores of the two students from university A will be greater than the average of the scores of the three
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