guys I need ur help! pls answer it ASAP
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Answered by
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15+17+f+12+9+5+2/7
=f+60/7
f=-60/7
=-8.57
hope this helps
am not sure
=f+60/7
f=-60/7
=-8.57
hope this helps
am not sure
swetha0202:
why is it divided by 7?
Answered by
1
Given median of the following data = 240.
C.I f Cumulative Frequency
0 - 100 15 15
100 - 200 17 32(17 + 15)
200 - 300 f 32 + f
300 - 400 12 44 + f(32 + 12 + f)
400 - 500 9 53 + f(44 + 9 + f)
500 - 600 5 58 + f(53 + 5 + f)
600 - 700 2 60 + f(58 + 2 + f)
---------------------------------------------------------------------------------------------
N = 60 + f.
Now,
L = 200, C.F = 32, Median class h = 200 - 300 = 100





40(2f) = 100(f - 4)
80f = 100f - 400
-20f = -400
f = 20.
Therefore f = 20.
Hope this helps!
C.I f Cumulative Frequency
0 - 100 15 15
100 - 200 17 32(17 + 15)
200 - 300 f 32 + f
300 - 400 12 44 + f(32 + 12 + f)
400 - 500 9 53 + f(44 + 9 + f)
500 - 600 5 58 + f(53 + 5 + f)
600 - 700 2 60 + f(58 + 2 + f)
---------------------------------------------------------------------------------------------
N = 60 + f.
Now,
L = 200, C.F = 32, Median class h = 200 - 300 = 100
40(2f) = 100(f - 4)
80f = 100f - 400
-20f = -400
f = 20.
Therefore f = 20.
Hope this helps!
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