Find the mean , median and mode of the following marks of 15 students on a screening test ( out of 20 ) : 2 , 0 , 8 , 0 , 15 , 6 , 8 , 11 , z13 , 0 , 7 , 1 , 0 , 10 , 12 .
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Step-by-step explanation:
mean=sum of observations/ no of observations
=2+0+8+0+15+6+8+11+13+0+7+1+0+10+12 /15
mean=6.2
mode= most repeating term
so , mode=0
median= middle term
n is odd means n+1/2
n=15,.
=(15+1/2)th term
=(16/2)th term
=8th term
that is median is11
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