Mathematics, 02.10.2019 19:00 nate102201
Frank works in the supply room of a law firm. at the beginning of the month, he had 21 boxes of pens with 13 pens in each box. at the end of the month, there were 45 pens left. how many pens did he give out over the month?
Answers: 3
Mathematics, 21.06.2019 19:00
How do the definitions, properties, and postulates you've learned about line segments, parallel lines, and angles to define the shapes of polygons
Answers: 1
Mathematics, 21.06.2019 21:30
Look at the figure below: triangle abc is a right triangle with angle abc equal to 90 degrees. the length of ac is 5 units and the length of ab is 4 units. d is a point above c. triangle adc is a right triangle with angle dac equal to 90 degrees and dc parallel to ab. what is the length, in units, of segment cd?
Answers: 1
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
Frank works in the supply room of a law firm. at the beginning of the month, he had 21 boxes of pens...
Mathematics, 12.11.2020 22:10
Mathematics, 12.11.2020 22:10
History, 12.11.2020 22:10
Spanish, 12.11.2020 22:10
Mathematics, 12.11.2020 22:10
Biology, 12.11.2020 22:10
Mathematics, 12.11.2020 22:10
History, 12.11.2020 22:10
Mathematics, 12.11.2020 22:10
Physics, 12.11.2020 22:10
Mathematics, 12.11.2020 22:10