The marks out of 10 obtained by 14 students in a class test are as follows:
6, 9, 7, 6, 8, 9, 5, 6, 8, 9, 6, 7, 8, 6
Answer the following.
(a) Arrange the observations in ascending order.
(b) Prepare a frequency table of the ordered data.
(c) Find the mode of the data and state its frequency.