Question

DATA HANDLING
CLASS 7
3. THE MARKS IN A SUBJECT FOR 12 STUDENTS ARE AS FOLLOWS ;
31, 37, 35, 38, 42, 23, 17, 18, 35, 25, 35, AND 29
FOR THE GIVEN DATA, FIND THE RANGE, MEAN, MEDIAN AND MODE

Answer 1

MEAN=sum of all marks /2=31+37+35+38+42+23+17+18+35+25+35+29

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