ad answer the following O 2.4 15565 3 4 Σ* x 5 8 7 4 3 9 x-μ (x-μ)² Σ(x-μ)² = = 36 of sick days taken last year by each employee, as shown in the table.
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- Point for this question will be added manunally. Q. Results for the initial stage of testing for an infectious disease are shown below. In the second stage of testing to differentiate true positives from false positives, what is the prevalence of disease? Status Test Positive Test Negative 0.,10 0.90 0.47 0.99 0.89 Disease Present 900 100 Disease Absent 1,000 8,000This value represents how much a change in one variable can be predicted from its relationship witha completely different variable .......Two refreshment stands kept track of the number of cases of soda they sold weekly during the summer time, as shown on the dot plots below. Stand A Stand B 10 11 12 13 14 15 16 17 18 19 10 11 12 13 14 15 16 17 18 19 Number of Cases Sold Number of Cases Sold What is the difference between the modes of the number of cases of soda sold? OA. 11 ов. 2 ос. 5 OD. 16
- For the following pairs of data points (10, 100), (8, 120), (5, 200), (4, 200), (10, 90), (7, 110), and (6, 150), the relationship between X and Y is a. Zero O b. None C. Positive d. Negative NEXT PAGE GE for anything acerIdentify the relationship between two variables and the terminology used to describe that relationship if a. ρ >0. b. ρ = 0. c.ρ< 0.For the following pairs of data points (10, 100), (8, 120), (5, 200), (4, 200), (10, 90), (7, 110), and (6, 150), the relationship between X and Y is of Zero O a. O b. Negative OC. Positive O d. None
- Help me answer part C only. .9793 is wrongI just need the d section(For Questions 17-19 and 20-24). The following data was collected from a clinical trial testing a new drug aimed to lower blood pressure for individuals older than age 45. Half of the 20 participants received the new drug (Treatment = Yes) and the other half of the participants received a placebo pill (Treatment = No). Their age and gender was also recorded. Please use this data for Questions 17-19 and 20-24 and note, not all the information in the table will be used for either problem, you must decide what is relevant based on what the problem is asking. Subject ID Treatment Age Gender BP_Before BP_After D1 Yes 65 F 103.3 80.5 D2 Yes 59 F 93.6 85.9 D3 Yes 60 M 92 85.2 D4 Yes 54 F 93 87.8 D5 Yes 65 F 95.4 85.3 D6 Yes 57 M 109.6 94.2 D7 Yes 69 M 97.9 83.9 D8 Yes 62 M 96 85 D9 Yes 49 F 98.4 86.3 D10 Yes 45 M 98.4 90 C1 No 63 F…
- 2. You need to present data to your boss and an assistant gives you a scatter gram with random points. They do not seem to form a line but r = 0.95. You did not draw the graph or calculate r. You do have the original data in front of you and it is accurate. How would you handle the discrepancy between the scatter gram and value for r?Which of the below graphical representations tells us how closely the two variables are related and indicates the direction of the changes in respective variables? O a. Scatter diagram O b. Pie chart O c. Ogive O d. HistogramFind the equation of the line which best fits the data points (2;1) , (4;4), (5;1),(6;3).