Frequency Distribution and Relative Frequency Distribution of Students’ Marks

STATISTICS (STAT-490) Pre MBA
Student Full Name:
Student ID:
CRN No:
Branch:

(i) A frequency distribution and a relative frequency distribution for 25 student’s marks
with 5 classes have been constructed below. The frequency distribution has been
constructed with Tally marks. The relative frequency table has been constructed and
provided in Table 2.
Table 1: Frequency Distribution of Students’ marks
Lower Upper Tally Mark FREQUENCY
45 54.8 ||| 3
54.8 64.6 |||| 5
64.6 74.4 |||| ||| 8
74.4 84.2 |||| 4
84.2 94 |||| 5
Class Boundaries
Table 2: Relative Frequency Distribution of Students’ marks
Lower Upper Midpoint FREQUENCY Rel.Freq
45 54.8 49.9 3 0.12
54.8 64.6 59.7 5 0.2
64.6 74.4 69.5 8 0.32
74.4 84.2 79.3 4 0.16
84.2 94 89.1 5 0.2
Class Boundaries
(ii) A frequency Histogram for 25 student’s marks with 5 classes has been created. The
horizontal scale has been taken as the marks of the students. The vertical scale
indicated the frequency of a particular class for the data.
Figure 1: Histogram of Students’ marks
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