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Answers
Answer:
868
Step-by-step explanation:
Wages No. of workers Cumulative Frequency
800 - 820 7 7
820 - 840 14 21
840 - 860 19 40
860 - 880 25 65
880 - 900 20 85
900 - 920 10 95
920 - 940 5 100
------
N = 100
We have N = 100
Then, N/2 = 50.
∴ 860 - 880 is the class whose cumulative frequency 65 is greater than 50.
∴ Median class = 860 - 880.
Thus,
l = 860, N/2 = 50, C.F = 40, f = 25, h = 20.
Median = l + {N/2 - CF/f} * h
= 860 + {50 - 40/25} * 20
= 860 + {10/25} * 20
= 868.
Therefore, Median = 868.
Hope this helps!
Step-by-step explanation:
Wages No. of workers Cumulative Frequency
800 - 820 7 7
820 - 840 14 21
840 - 860 19 40
860 - 880 25 65
880 - 900 20 85
900 - 920 10 95
920 - 940 5 100
------
N = 100
We have N = 100
Then, N/2 = 50.
∴ 860 - 880 is the class whose cumulative frequency 65 is greater than 50.
∴ Median class = 860 - 880.
Thus,
l = 860, N/2 = 50, C.F = 40, f = 25, h = 20.
Median = l + {N/2 - CF/f} * h
= 860 + {50 - 40/25} * 20
= 860 + {10/25} * 20
= 868.
Therefore, Median = 868.