~(b)(i) Mode = 5.
(ii) Median
Frequency = 18 + 2(11) = 40.
Median position = \(\frac{40}{2} = 20\)
20th position = 5.
(c) No of students that scored at least 7 marks = 4 + 1 = 5.
Probability of scoring at least 7 marks = \(\frac{5}{40} = \frac{1}{8}\)
~(c) No of students that scored at least 7 marks = 4 + 1 = 5.
Probability of scoring at least 7 marks = \(\frac{5}{40} = \frac{1}{8}\)
