The production of electric bulbs in different factories is shown in the following table. Draw the frequency polygon from the table. No. of bulbs produced (Thousands) 30 - 40 40 - 50 50 - 60 60 - 70 70 - 80 80 - 90 90 - 100 No. of factories 7 33 45 65 47 18 5
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Answered by
0
Answer:
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Step-by-step explanation:
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Answered by
1
Answer:
Median class:50-60
l= 50
h=10
f=20
cf=47
50+(
20
52.5−47
)×10
=>50+
20
5.5
×10
=>50+
2
5.5
=>50+2.75
=52.75
Median= 52.75 bulbs
≈ 53 bulbs
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