Question

The marks of 12 students in a subject are as follows:
31, 37, 35, 38, 32, 23, 17, 18, 35, 20, 35, 29
Find the range,mean,medisn and mode of the given data.
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Answer 1

mean = sum of observations/no. of observations

= 31+37+35+38+32+23+17+18+35+20+35+29/12

=350/12

=29.1

SET THEM IN ASCENDING ORDER

17,18,20,23,29,31,32,35,,35,35,37,38

median =31+32/2

=63/2

=31.5

mode =35

THIS IS THE ANSWER

MARK AS BRAINLIST ANSWER

Answer 2

Answer:

Mean 30.41

Medain = 33

Mode = 35

Range = 25

Step-by-step explanation:

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

Sum of all = 365

Arrange in ascending order

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

Mean = 365/12 = 30.41

Mode = 35  ( repeating 3 Times)

Median = Mean of 6th & 7th digit in ascending order = (31+35)/2 = 33

Range = 42 -17 = 25