
Averages - answers
1. 4.43
2. 59.11
3. 7
4. 16.5
5. 112.8
6. Group A = 11.9, Group B = 11.6 so the answer is Group A (just!)
7. Overall average = 122/30 = 4.067. Day 1 average = 41/10 = 4.1. Day 2 average = 48/10 = 4.8 Day 3 average = 33/10 = 3.3, so Day 2 has the worst overall average.
On Day1, 2 students were more that 5 minutes late, Day2 = 5 students and Day 3 = 1 student so Day 2 is also the day on which most students were more that 5 minutes late.
SMILE - Numeracy skills by Tom Frank, Eric Williams and Clare Wright, University of Birmingham Careers Centre adapted by Marion Kelt Glasgow Caledonian University is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License.