Use linear regression to find a
function that fits the following
points.
(5,2.4), (10,8...
Mathematics, 11.11.2020 23:20 20009
Use linear regression to find a
function that fits the following
points.
(5,2.4), (10,8.9)
y = [? ]x + [ ]
Answers: 3
Mathematics, 22.06.2019 07:00
2. a family eats at a restaurant. the bill is $42. the family leaves a tip and spends $49.77. a. how much was the tip in dollars? b. how much was the tip as a percentage of the bill?
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 ฯ2 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 ฯ2 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 ฯ2. is s and unbiased estimator of ฯ? the above problem is from triolaโs essentials of statistics, 4th edition.
Answers: 2
Mathematics, 22.06.2019 09:00
Isuck at math and i'm failing, i will give brainliest if you answer correctly. determine the answer to (-3) + (-5) and explain the steps using a number line
Answers: 2
Mathematics, 22.06.2019 10:30
To rent a car, you must pay $0.30 per mile plus a maintenance fee of $35. write and equation to represent this function.
Answers: 1
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