Mathematics, 03.02.2021 17:50, bobiscool3698
Let f(x) = x^2 β 2 Write and simplify an expression for f(x + 2).
Answers: 2
Mathematics, 22.06.2019 07:50, xelynncaldera
Assume the population consists of the values 1, 3, 14. assume samples of 2 values are randomly selected with replacement (see page 23 for a definition) from this population. all the samples of n=2 with replacement are 1 and 1, 1 and 3, 1 and 14, 3 and 1, 3 and 3, 3 and 14, 14 and 1, 14 and 3, and 14 and 14. for part a) of this project, find the variance Ο2 of the population {1, 3, 14}. for part b) of this project, list the 9 different possible samples of 2 values selected with replacement, then find sample variance s2 (which includes division by n-1) for each of them, and finally find the mean of the sample variances s2. for part c), for each of the 9 different samples of 2 values selected with replacement, find the variance by treating each sample as if it is a population (using the formula for population variance, which includes division by n), then find the mean of those population variances. for part d), which approach results in values that are better estimates of Ο2 from part a): part b) or part c)? why? when computing variances of samples, should you use division by n or n-1? upload your answers for a), b), c), and d). the preceding parts show that s2 is an unbiased estimator of Ο2. is s and unbiased estimator of Ο? the above problem is from triolaβs essentials of statistics, 4th edition.
Answers: 2
Mathematics, 22.06.2019 10:30, jalynthrntnp5e6my
If a data set haas a regression line equation of y=3x+15, what is the predicted values at x=2
Answers: 1
Let f(x) = x^2 β 2 Write and simplify an expression for f(x + 2)....
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