Stage 9 - Q1 - 3 marks
20217
State the modal class and explain why the exact modal value is unknown.
Time (min)
Frequency
\(5\le t<10\)
4
\(10\le t<15\)
10
\(15\le t<20\)
18
\(20\le t<25\)
8
\(25\le t<30\)
5
Hint
Identify the largest count, not the largest class midpoint.