Mathematics, 20.01.2020 17:31 deedee363
Various problems with data collection can cause some observations to be missing. suppose a data set has 20 cases. here are the values of the variable x for 10 of these cases: 17, 6, 12, 14, 20, 23, 9, 12, 16, 21 the values for the other ten cases are missing. one way to deal with missing data is called imputation. the basic idea is that missing values are replaced, or imputed, with values that are based on an analysis of the data that are not missing. for a data set with a single variable, the usual choice of a value for imputation is the mean of the values that are not missing. (a) compute the mean and standard deviation for the 10 cases for which x is not missing. (b) create a new data set with 20 cases by using imputation where you set the values for the 10 missing cases equal to the mean that you computed in the previous part. compute the mean and standard deviation for this new data set with 20 cases. (c) summarize what you have learned about the possible effects of this type of imputation on the mean and the standard deviation.
Answers: 3
Mathematics, 21.06.2019 18:00
Me, prove a quadrilateral with vertices g(1,-1), h(5,1), i(4,3) and j(0,1) is a rectangle using the parallelogram method and a rectangle method.
Answers: 3
Mathematics, 21.06.2019 19:00
If olu is twice as old as funmi if the sum of their ages is 60 how old is olu
Answers: 1
Mathematics, 21.06.2019 20:50
Determine the common ratio and find the next three terms of the geometric sequence. 649-14-02-00-00_files/i0100000, 649-14-02-00-00_files/i0100001, 2, a. 3; 649-14-02-00-00_files/i0100002, 649-14-02-00-00_files/i0100003, 649-14-02-00-00_files/i0100004. c. 649-14-02-00-00_files/i0100005; 649-14-02-00-00_files/i0100006, 649-14-02-00-00_files/i0100007, 649-14-02-00-00_files/i0100008. b. 3; 6, 18, 54 d. 649-14-02-00-00_files/i0100009. 6, 18, 54 select the best answer from the choices provided a b c d
Answers: 1
Mathematics, 22.06.2019 00:20
Which of the following is equal to the square root of the cube root of 5 ? (1 point) 5 to the power of 1 over 3 5 to the power of 1 over 6 5 to the power of 2 over 3 5 to the power of 3 over 2
Answers: 1
Various problems with data collection can cause some observations to be missing. suppose a data set...
Mathematics, 22.10.2019 18:00
Mathematics, 22.10.2019 18:00
History, 22.10.2019 18:00
Mathematics, 22.10.2019 18:00
Physics, 22.10.2019 18:00
History, 22.10.2019 18:00
History, 22.10.2019 18:00
Mathematics, 22.10.2019 18:00
Mathematics, 22.10.2019 18:00
Mathematics, 22.10.2019 18:00
Chemistry, 22.10.2019 18:00
Health, 22.10.2019 18:00
Mathematics, 22.10.2019 18:00