Table 8.84 Frequency table Marks No. of Candidates
9
5
15
11
25
1។
IS
35
45
23
19
55
65
13
15.
10
85
95
11 .
4
a Determine the median mark for the distribution.
b Calculate the mean to the nearest whole number.
e state the mode of the distribution
d A candidate is selected at random. Calculate the person
probability that his marks are: (1) less than or equal to our
(ii) at least 15