Wisconsin Graduation Wisconsin has the highest high school graduation rate of all states at 90%. a. In a random sample of 10 Wisconsin high school students, what is the probability that 9 will graduate? b. In a random sample of 10 Wisconsin high school students, what is the probability than 8 or fewer will graduate? c. What is the probability that at least 9 high school students in our sample of 10 will graduate?
Wisconsin Graduation Wisconsin has the highest high school graduation rate of all states at 90%. a. In a random sample of 10 Wisconsin high school students, what is the probability that 9 will graduate? b. In a random sample of 10 Wisconsin high school students, what is the probability than 8 or fewer will graduate? c. What is the probability that at least 9 high school students in our sample of 10 will graduate?
Solution Summary: The author determines the probability that exactly 9 students out of 10 randomly selected Wisconsin high school students are graduates, if graduation rate of Wisconsin is 90%.
Wisconsin Graduation Wisconsin has the highest high school graduation rate of all states at 90%.
a. In a random sample of 10 Wisconsin high school students, what is the probability that 9 will graduate?
b. In a random sample of 10 Wisconsin high school students, what is the probability than 8 or fewer will graduate?
c. What is the probability that at least 9 high school students in our sample of 10 will graduate?
Definition Definition Number of subjects or observations included in a study. A large sample size typically provides more reliable results and better representation of the population. As sample size and width of confidence interval are inversely related, if the sample size is increased, the width of the confidence interval decreases.
Let Y be a continuous RV with PDF
otherwise
Find the CDF, Fry), of Y .
Find an expression for pth, p € (0, 1), quantile of the distribution.
Find E(Y) and V(Y).
Find E(-2Y + 1) and V(-3Y - 2).
Find E(Y3).
Let X be a continuous RV with CDF
Find P(X < 0), P(-1 < X < 1) and P(0.5 < X).
Based on your answers to the above questions, what is the median of the distribu-tion? Why
Find the PDF, fx (x), of X.
A survey of 581 citizens found that 313 of them favor a new bill introduced by the city. We want to find a 95% confidence interval for the true proportion of the population who favor the bill. What is the lower limit of the interval? Enter the result as a decimal rounded to 3 decimal digits. Your Answer:
University Calculus: Early Transcendentals (4th Edition)
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