The data in the table below is taken from CensusAtSchool - Junior Cycle Mathematics - Question 2 - 2013

The junior students in the sample are:

Student	Cans Bought	Cans Recycled
A	6	2
B	0	0
C	1	1
F	1	1
I	1	1
L	3	1

To calculate the total cans bought by junior students, we sum the values:

$6 + 0 + 1 + 1 + 1 + 3 = 12$

Thus, a total of 12 soft drink cans were bought by the junior students.

To find out the total number of cans recycled by the junior students, we will sum their recycled values:

$2 + 0 + 1 + 1 + 1 + 1 = 6$

Therefore, the junior students recycled a total of 6 soft drink cans.

To analyze the recycling rates:

• For junior students, the recycling rate is calculated as follows:

$ext{Junior Recycling Rate} = \frac{6}{12} \times 100\% = 50\%$

• For senior students (4th to 6th year), we calculate the total cans and recycled cans:

Cans bought by seniors = 15, Cans recycled by seniors = 9.

$ext{Senior Recycling Rate} = \frac{9}{15} \times 100\% = 60\%$

Comparing both rates, we can conclude that senior students have a better recycling rate (60%) compared to junior students (50%).