Example:
Question 1: Find Mean of following numbers : 45 , 50 , 57 , 58 , 65
Solution 1:
Count of numbers = 5
Sum of numbers = 45 + 50 + 57 + 58 + 65 = 275
Mean = Average = Sum of numbers / Count = 275/5 = 55
Answer : Mean = 55
Median : is middle value in the list . If count of numbers in list is even then median is sum of two middle numbers divided by two. If count of numbers in list is odd then median is the middle number in the list.
Question 1 : Find median of following numbers : 54 , 46 , 67 , 22 , 13 , 76
Solution 1 :
Arrange numbers in ascending order i.e smallest to largest : 13, 22 , 46 , 54 , 67 , 76
Count of numbers = 6 i.e Even numbers
Median = Sum of 3rd and 4th / 2 = (46 + 54)/2 = 100/2 = 50
Answer : Median = 50
Mode : is list of numbers which occur most frequesntly.
Question 1 : Find Mode of following numbers : 45, 56, 12 , 45 , 45 , 56 , 78
Solution 1 :
Arrange numbers in ascending order : 12,45,45,45,56,56,78
45 occurs three times
Answer : Mode = 45
