21. A population consists of the following three values: 1, 2, and 3. a. Sampling with replacement, list all possible samples of size 2 and compute the mean of every sample. b. Find the means of the distribution of the sample mean and the population mean. Compare the two values. c. Compare the dispersion of the population with that of the sample mean. d. Describe the shapes of the two distributions.

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Q: Liquid leaked from a damaged tank at a rate of r(t) liters per hour. The rate decreased as time…

A: We need to find lower and upper estimate.

Q: Find lim (x,y)→(12,3) xy cos(x – 4y). OS 1. –36 2. 36 3. 3 4. 0

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A: The given integral is 1/(x-1)2/3 limit from 0 to 3.

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Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.