the score of an maths test out of 15 students as folliws
19,25,23,20,9,20,15,10,5,16,25,20,24,12,20
find mean median and the mode of data
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Mean= sum of observations/no of observations
Mean=19+25+23+20+9+20+15+10+5+16+25+20+24+12+20/15
Mean=263/15
Mean= 17.5333
Median=
Ascending order= 5, 9, 10, 12, 15, 16, 19, 20, 20, 20, 20, 23, 24, 25, 25
Middle number=20
Median=20
Mode=20
Median and mode is same
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