Mr Hardknuckles’ Class

1. Mr Hardknuckles’ Class How tall are they ?

2. Mr Hardknuckles recorded the heights of students in his class. These are the results. (Heights are in cm) 164, 171, 152, 165, 147, 153, 158, 161, 155, 168, 162, 173, 149, 167,166, 155, 163, 174, 148, 151, 142, 162, 181, 154, 139, 167, 143, 165, 153. Write these numbers into your book. Draw a Frequency Table for this data.

3. 130 - 140 - 150 - 160 - 170 - 180 - Frequency Table 164, 171, 152, 165, 147, 153, 158, 161, 155, 168, 162, 173, 149, 167,166, 155, 163, 174, 148, 151, 142, 162, 181, 154, 139, 167, 143, 165, 153. Score Tally Frequency 1 5 9 11 2 1

4. 130 140 150 160 170 180 Draw a Histogram 12 In a histogram the bars touch each other. 10 8 FREQUENCY 6 4 2 0 SCORE

5. 181 Highest score Max = _________ Min = ________ Range = ________ Modal class = ________ Median = ________ Mean = ________ 139 Lowest score 42 Max - Min 160 - 169 Biggest group 161 Middle when ranked 4608 29 158.9