Question

The score of 15 students in an examination out of 10 marks is as below:3, 9, 7, 5, 6, 3, 7, 6, 7, 4, 7, 7, 4, 8, 2. Find the mean, mode and median.
2 points
(a) 5
(b) 4
(c) 7
(d) 6​

Answer 1

Step-by-step explanation:

$3, \: 9, \: 7, \: 5, \: 6, \: 3, \: 7, \: 6, \: 7, \: 4, \: 7, \: 7, \: 4, \: 8, \: 2. \\ Scores \: \: in \: \: Ascending \: \: Order : \\ 2, \: 3, \: 3, \: 4, \: 4, \: 5, \: 6, \: 6, \: 7, \: 7, \: 7, \: 7, \: 7, \: 8, \: 9. \\ \\ Mean = \frac{Sum}{No \: \: of \: \: Students} \\ Mean =\frac{85}{15} \\ Mean = \underline{ \underline{5.66}} \\ \\ Mode \: \: is \: \: the \: \: number \: \: which \\ occurs \: \: max \: \: no \: \: of \: \: times \\ 7 \: \: occurred \: \: 5 \: \: times \\ Mode = 7 \\ \\ Median \: \: is \: \: the \: \: middle \: \: number \\ Median = 6$