Use the following grouped frequency table to answer the question.
Class (marks)
Frequency
0–10
4
10–20
6
20–30
10
30–40
8
40–50
2
Which of the following correctly lists the Mean, Median and Mode (in this order) of the data?
a) 26.7,25.0,24.3
b) 24.3,24.5,26.2
c) 24.3,25.0,26.4
d) 24.3,25.0,26.7