The median of the observations 11,12,14,(x-2),(x+4),(x+9),32,38,47 arranged in ascending order is 24.find the value of x and hence find the mean.
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Answered by
19
x=20
mean =25
.........
mean =25
.........
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Answered by
42
Median = 24
No.of observations = 9
Median = (n+1)/2th observation
= (9+1)/2th observation
= 10/2th observation
= 5th observation
= x+4
Median = x+4
24 = x+4
x = 24-4
x = 20
No.of observations = 9
Median = (n+1)/2th observation
= (9+1)/2th observation
= 10/2th observation
= 5th observation
= x+4
Median = x+4
24 = x+4
x = 24-4
x = 20
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