5. Following are the marks obtained by 16 students of a class in a test (out of 50 marks) in
mathematics:
10, 36, 36, 4, 32, 26, 16, 34, 36, 34, 26, 36, 32, 16, 10, 40
Find:
(a) The range of marks.
(b) Mean marks.
(c) The marks of one of students were taken wrong, instead of 62, 26 were taken. Find the actual
mean marks.
Share
Answer:
Range= biggest - smallest
Answer
Total number of values =50
Range = Highest value − Lowest value
=98−8=90
Let us divide the given data into 10 classes.
∴ Length of the Class interval =
Number of class interval
Range
=
10
90
=10
The frequency table of the marks obtained by 50 students in a mathematics test is as follows.
mark me as brainiest please