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Business Statistics, 3rd Edition
book

Business Statistics, 3rd Edition

by Naval Bajpai
April 2024
Intermediate to advanced content levelIntermediate to advanced
921 pages
37h 16m
English
Pearson India
Content preview from Business Statistics, 3rd Edition
Chapter 3
PB
Measures of Central Tendency
101
TABLE 3.25
Computation of median for Example 3.15
Vacations availed Number of employees (f) Cumulative frequency (cf)
0–10 2 2
10–20 18 20
20–30 30 50
30–40 45 95
40–50 35 130
50–60 20 150
60–70 6 156
70-80 3 159
Sum
fN
i
i
n
==
=
1
159
Here, N = 159, which is an odd number.
N
2
=
159
2
79 5=
.,
which falls in the class 30–40 (see the row of the cumulative frequency 95
which contains 79.5). Hence, the median class is 30–40.
l = lower limit of median class = 30
f = frequency of median class = 45
c = total of all frequencies preceding median class = 50
i = width of class interval of median class = 10
Median = l
N
c
f
i+
×
2
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Publisher Resources

ISBN: 9789390168996