Q. 543.5( 4 Votes )

The marks in a su

Answer :

a) Range = highest marks–lowest marks


= 42–17


= 25


b) Mean =


Sum of values = 31 + 37 + 35 + 38 + 42 + 23 + 17 + 18 + 35 + 5 + 35 + 29


= 345


Number of values = 12


Mean = = 28.75


c) Median


1st arrange data in ascending order


17, 18, 23, 25, 29, 31, 35, 35, 35, 37, 38, 42


For even number of terms


Median = mean of and term


Median = mean of 6th and 7th term


= = 33


d) Mode


It is the marks which is obtained by maximum students


Mode = 35 (Comes for 3 students)


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