Here is a bivariate data set. у 43 51 34 40 21 34 43 68 22 29 57 60 3965 52 50 Find the correlation coefficient and report it accurate to four decimal places.
Here is a bivariate data set. х 94 94 81 67 у 98 -7 21 69 85 84 70 46 68 55 89 22 -65 10 -31 215 Find the correlation coefficient and report it accurate to four decimal places. r= Check Answer
Here is a bivariate data set. х у 91.1 82.3 94.3 43.6 72.7 6.3 89.5 -19.9 73.8 141 85.8 76.9 48 -92.1 69 177 69.2 -34.7 90.1 130.2 102.2 245.2 74 101.2 81.9 -24 94 -23.8 51 -2.6 Find the correlation coefficient and report it accurate to three decimal places. What proportion of the variation in y can be explained by the variation in the values of x? Report answer as a percentage accurate to one decimal place. %
Problem 4: Variables that may affect Grades The data set contains a random sample of STAT 250 Final Exam Scores out of 80 points. For each individual sampled, the time (in hours per week) that the student spent participating in a GMU club or sport and working for pay outside of GMU was recorded. Values of 0 indicate the students either does not participate in a club or sport or does not work a job for pay. The goal of...
Problem #1: Consider the below matrix A, which you can copy and paste directly into Matlab. The matrix contains 3 columns. The first column consists of Test #1 marks, the second column is Test # 2 marks, and the third column is final exam marks for a large linear algebra course. Each row represents a particular student.A = [36 45 75 81 59 73 77 73 73 65 72 78 65 55 83 73 57 78 84 31 60 83...
estimate the average age at which multiple sclerosis patients were diagnosed with the condition for the first time in a given city. How big should the sample be? Define your procedures for this estimate (if necessary, set your own values of unknown parameters, based on statistical theory). In Table 1 you will find all ages of this patient population. 54 58 56 48 62 59 55 56 60 52 53 61 56 56 53 37 71 62 39 61 54...
NUMBER OF PEOPLE 10.2 10.0 10.1 8.5 10.2 8.2 8 Source: United States Census. 11. In the Sanitary District of Chicago, operating engineers are hired on of a competitive civil-service examination. In 1966, there were 223 appl for 15 jobs. The exam was held on March 12; the test scores are s arranged in increasing order. The height of each bar in the histogram next page) shows the number of people with the correspondin examiners were charged with rigging the...
Presidents Ages (44 of them): 57 61 57 57 58 57 61 54 68 51 49 64 50 48 65 52 56 46 54 49 51 47 55 55 54 42 51 56 55 51 54 51 60 62 43 55 56 61 52 69 64 46 54 47 Please answer Question D the last one: Quartile Q1: 51 Quartile Q2: 54.5 Quartile Q3: 57.5 IQR= 6.5 Lower fence = 41.25 Upper fence = 67.25 d. Use the fences from...
Timelimit: 2 hours, 30 minutes Here is a bivariate data set. X 51.3 78 41.9 62.6 30.8 42.2 y 34.6 46.6 48.3 73 40.8 64.6 Find the correlation coefficient (three decimal accuracy What proportion of the variation in y can be explained by the variation in the values of x? Report answer as a percentage accurate to one decimal place P- [one decimal accuracy] Points possible: 3 This is attempt 1 of 1. Submit
10. Below are 36 sorted ages of an acting award winner. Find Upper P10 using the method presented in the textbook. 22 22 23 24 27 28 30 31 32 32 34 35 35 39 40 42 45 46 48 49 49 51 51 53 53 56 56 57 60 64 66 75 77 79 80 80 11. Find the third quartile Q3 of the list of 24 sorted values shown below 30 32 38 44 45 46 46 48...