38. The lines graphed below show the amounts of water in two tanks as they were being filled over time. TANK FILLING RATES
Water (gallons)
1,800
1,600
1,400
1,200
1,000
800
600
400
Tank A
Amount
Tank B
200
0
0.5
1 1.5 2
Time (minutes)
For each tank, explain whether or not there is a proportional relationship between the amount of water, in gallons,
and the time, in minutes. If there is a proportional relationship, identify the unit rate. Use specific features of the
graph to support your answer.

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