On departing an airport, the time on a pilot's watch was 21:30 h. On arrival at his destination in the same time zone the next day, his watch was reading 06:10 h. How many hours did the flight take? (A) 2½ (B)3⅔ (C) 8 ⅔ (D) 27⅔

The correlation coefficient between the number of students and marks obtained in end semester exam. (13 marks) give the statistical meaning of the relationship between the number of students and marks b. obtained in end semester exam. (3 marks) draw the number of students and marks obtained in end semester exam scatter diagram c. (4 marks) check list write your name and id corectly write the question number properly use your own calculator. show all the steps to solve the problems. use the correct formula. answer in provided time. don't use your mobile for any purpose. write your answer up to two decimal places