1. Mathsercise-C HD Special Revision Mixture Ready? Here we go!

2. HD Mixture Shahid listed the number of goals scored by each team in his local hockey league in order 1 7, 12, 13, 18, 19, 24, 31, 34, 39, 42, 56 Find (i) The lower quartile (ii) The upper quartile Answer Question 2

3. Here are the times, in minutes, taken to complete maths homework 2 Draw a stem and leaf diagram to show this HD Mixture 12, 25, 19, 24, 27, 31, 37, 11, 28, 29, 35, 38, 10, 11, 27, 32, 29, 16 Answer Question 3 1 3 2 The stems come from the tens digits The leaves come from the units digits 7174 952 1 0 8 59 8 1 692 7

4. 3 100 students took a test, the graph shows information about their marks (i) Estimate the lowest and highest marks HD Mixture 30 50 70 90 50 60 20 70 30 40 100 90 80 10204060 10 80 No. of students Marks (ii) Estimate the median score (iii) Find the interquartile range Answer Question 4 100 15 57 65 45 = 20-

5. This box plot shows information about the time taken for 24 girls at the swimming club to swim 800m in training 4 Describe the times of the swimmers with reference to median, slowest, fastest, and interquartile range HD Mixture 87109 12111413 151918 1716 22 2120 23 2425 Mins Answer Start Fastest = 23 mins, slowest = 8.5 mins Median = 18 mins, range = 15.5 mins Interquartile range = 20 – 12.5 = 7.5 mins