find the median of data .class intervals 10-20 20-30 30-40 40-50 50-60
..frequency 8 16 36 34 6 100
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37.2
Step-by-step explanation:
class. frequency cumulative frequency
10-20. 8. 8
20-30. 16. 24
30-40. 36. 60
40-50. 34. 94
50-60. 6. 100
n/2= 100/2
=50th item
Median M=L+(n/2-pcf)x c
f
L=30
n/2=50
pcf=24
c=10
f=36
=30+(50-24)x10
36
=30+7.22
=37.22
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