document.write( "Question 918908: The following data relates to daily bill on consumption of a certain commodity for 600 households\r
\n" ); document.write( "\n" ); document.write( "Daily bills (KSh) 10 - 20 20 - 30 30 - 40 40 - 50 50 - 60 60 - 70 70 - 80 80 - 90 90 - 100
\n" ); document.write( "No. of households 60 70 110 100 60 50 90 30 30\r
\n" ); document.write( "\n" ); document.write( "i) Calculate the mean
\n" ); document.write( "ii) Calculate the median
\n" ); document.write( "iii) Calculate the standard deviation
\n" ); document.write( "iv) Calculate the coefficient of skewness
\n" ); document.write( "v) Comment on the skewness of this distribution
\n" ); document.write( "vi) Calculate the coefficient of variation
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Algebra.Com's Answer #557317 by ewatrrr(24785) $\"\"$ $\"About$

You can put this solution on YOUR website!

 
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document.write( "Hi
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document.write( "Mid	f	M*f	M - m  (M - m)^2 f(M - m)^2
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document.write( "15	60	900	-34	1156	69360
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document.write( "25	70	1750	-24	576	40320
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document.write( "35	110	3850	-14	196	21560
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document.write( "45	100	4500	-4	16	1600
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document.write( "50	60	3000	1	1	60
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document.write( "65	50	3250	16	256	12800
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document.write( "75	90	6750	26	676	60840
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document.write( "85	30	2550	36	1296	38880
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document.write( "95	30	2850	46	2116	63480
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document.write( "	600	29400			308900
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document.write( "		49 mean			515.6928214
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document.write( "					22.70887492 sd
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document.write( "mean = 49
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document.write( "median = 46 
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document.write( "sd = 22.7
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document.write( "P = 3(49-46)/22.7
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document.write( "CV = 
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document.write( "

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