Mathematics, 30.09.2019 17:50 nikkih1225
What is the radius of a circle whose equation is (x-7)2+(y-10)2=4
Answers: 2
Mathematics, 22.06.2019 01:00
You went to a restaurant and spent $53.25 on the meal. there was a 6% sales tax. what was the amount of money, not including a tip, you spent at the restaurant?
Answers: 1
Mathematics, 22.06.2019 01:10
Awavelength of 610 nm was found to be the most intense wavelength emitted by copper. answer the following questions about this wavelength of light. a) what is this wavelength in cm? b) what is the frequency that corresponds to this wavelength? c) what is the energy of light of this wavelength? d) what is the wavenumber corresponding to this wavelength?
Answers: 2
Mathematics, 22.06.2019 03:30
Jack brought 12 pet monkeys. if each monkey cost $45.99, how much money did he spend in all?
Answers: 2
Mathematics, 22.06.2019 07:50
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
What is the radius of a circle whose equation is (x-7)2+(y-10)2=4...
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