find the median for ci 0-5 5-10 10-15 15-20 and f of 2,3,4,1
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Answered by
0
Answer:
Class-interval Frequency Cumulative frequency
0−5 5 5
5−10 3 5+3=8
10−15 9 8+9=17(c.l)
15−20 10 17+10=27
20−25 8 27+8=35
25−30 5 35+5=40
N=40
⇒N/2=40/2=20
then the median class;
15−20
Lowest limit(l)=15
Class width(h)=5
Frequency(f)=10
and c.f= preceding cumulative frequency of median class
=median
=l+(
f
N/2−c.f
)×h
=15+(
10
20−17
)×15
=15+
10
3×5
=15+
10
15
Median=15+1.5=16.5.
Answered by
1
Answer:
Median=15+1.5=16.5 is the correct answer
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