please rate my answer ,if it is helpful
thankyou
=(0+2+4+8+16+36)/6
=11
Data Set: (2, 3, 4, 6, 8, 9} 1. What is the mean of the data set? 2. What is the variance of the data set? 3. What is the standard deviation of the data set? 1 117 16 MacBook Air
Data Set: 6, 1, 4, 2, 3, 4, 6, 8, 9 a. Calculate the mean, median, mode, range, variance and standard deviation (using either formula). b. Compare the two groups in terms of central tendency and variability. What conclusions can you draw from the data in regards to average number of time a student posted, variability of postings, etc?
14/ For the data set 8, 6, 29, 3, 9, 23, 15, 18, 5, 3, 22, 27, 4, 2 and 22 the midrange is A./ 16 B/ 11 C/ 15 D/ 18 15/ By the Empirical Rule, in a city of 62,000 people, the number of people below the mean by more than 1 standard deviation is: A./ 41,160 B/ 9, 920 C/ 21,080 D/ 6,200 Questions 16-18 : Use the distribution in the form of the stem-leaf plot. Stem...
(4)(a)Evaluate the following set of data for possible and probable outliers. 5 8 2 9 5 3 7 4 2 7 4 10 4 3 17 (b) A firm pays 5/12 of its labor force an hourly wage of $5, 1/3 of the labor force a wage of Sand / a wage of $7. Determine the average wage paid by the firm. (C)For the same amount of capital invested in each of 3 years, an investor earned a rate of...
Consider the following data x 0 1 2 3 4 Pr(X=x) .16 .19 .36 .18 .11 a) calculate expected value b) calculate E[X2] c) calculate Var(X) d) calculate the standard deviation
DATA 2 ID X1 X2 X3 Y A 0 2 4 9 B 1 0 8 10 C 0 1 0 5 D 1 1 0 1 E 0 0 8 10 CORRELATION MATRIX Y X1 X2 X3 Y 1 ? -0.304 +0.889 X1 ? 1 -0.327 0 X2 -0.304 -0.327 1 -0.598 X3 +0.889 0 -0.598 1 1. What is the mean squared error of the full model? (Correct answer is 4, please show me how to get there)...
having trouble working excel, please help Lab Assignment Each student has been assigned a unique data set, and will be required to perform basic statistical analyses on the data. Each exercise should be saved to a new file so one of your first tasks will be to make sufficient copies of your data file, named appropriately. E.g. Grant, Karen Inf Stats Ex1; Grant, Karen Inf Stats Ex2; Grant, Karen Inf Stats Ex3. All data files are taken from real data...
What would the sum of x be for the following data set? 4,6,0,3, and 2 a. 16 b. 14 c. 22 d.15 What would the sum of X squared be for the following data set? 4, 6, 0, 3 and 2 a. 56 b.65 c.225 d.100 What would the (sum of x) squared be for the following data set? 4, 6, 0, 3, and 2 a. 20 b.65 c.100 d.225
4.Consider the data set represented by the ordered stem and leaf diagram 10 0 0 9 1 1 1 1 2 3 8 0 1 1 2 2 3 4 5 7 8 8 9 7 0 0 0 1 1 2 4 4 5 6 6 6 7 7 7 8 8 9 6 0 1 2 2 2 3 4 4 5 7 7 7 7 8 8 5 0 2 3 3 4 4 6 7 7...
For the following data set, X: 9, 6, 8, 3, 8, 9, 3, 4, 3, 7; MEAN = (Use one decimal point in your answer, e.g. 2.0)