\f(Conferences) 23. What is the correlation between the following z-scores? ourses Google Drive X Y Chat alendar 1.3 1.6 Inbox -1.2 -1.0 O History -0.1 1-0.2 0.5 0.3 Help -O.8 -0.6 O d. 0.9767 O a.-0.9767 O c.0,7967 O b. -0.7967Question 12 1 pts The monthly income of the five research directors of Recoletos schools are : 55,000, 59,500, 62,500, 57,000 and 61,000. What is its variance? O c. 7. 000, 000 O a. 6, 000, 000 O d. 7, 300, 000 R O b, 6, 300, 000 Next .Question 27 ton es) What is the value of bo using the given data? ve Performance Rating (x) 85 89 91 93 84 89 Crime Rate (y) 89 90 92 92 88 90 O c. 50.27 O a. 50.47 O b. 50.37 O d.50.17Question 17 1 pts Button rices What is the standard deviation? Drive Ages of Consumers 30-34 10 35-39 15 40-44 8 45-49 7 O b. 4.89 O d. 5.55 O c. 5.35 O a, 5.21\fides Questic labus Question 24 1 pts Question BlueButton Time Running: inferences] Attempt due: Sep 27 ogle Drive 54 Minutes, 6 Se The data below shows the performance rating of the police offices and the crime solution efficiency in their respective areas of responsibility for the last 6 months. Performance Rating (x) 85 89 91 93 84 89 Crime Rate (y) 89 90 92 92 88 90 What is the slope of the regression line? O b. b- 0.4554 O db=0.5545 O ab=0.4454 O c b:0.5445 Next .\fGrades Syllabus Question 25 1 pts BigBlueButton (Conferences) What is the equation of the regression line? Google Drive Performance Rating (x) 85 89 91 93 84 89 Chat Crime Rate (y) 89 90 92 92 88 90 O b. 50,47 +.4454x O a. 50.47 + 0.4554x O d. 50.47 + .5545 O C 50.47 +.5445x Next . Type here to search OChoose the letter of the correct answer. Question 13 What is the third quartile in the given data 15, 17, 10, 12, 13, 10, 14, 10, 8 and 9? O a. 9.75 O d. 15.2 O b. 14.25 O c. 13.7