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Probability and Statistics Worksheet 15

Answer Key

1

The number of countries that participated in United Nations meeting in 5 different years was 100, 120, 110, 100, 140. Find the following:

 

a.    Mean: 114

 

b.    Median: 110

 

c.    Mode: 100

2

The marks scored by 6 student in a competitive exam were 45, 60, 45, 50, 70, 44. Find the following:

 

a.    Mean: 52.33

 

b.    Median: 47.5

 

c.    Mode: 45

3

The number of matches proposed by the soccer federation for the next five years is 25, 25, 45, 40, 50. Find the following:

 

a.    Mean: 37

 

b.    Median: 40

 

c.    Mode: 25

4

The ground water levels in 6 different cities across the world in meters are 50, 55, 34, 57, 60, 55, 64 .Find the following:

 

a.    Mean: 53.57

 

b.    Median: 55

 

c.    Mode: 55

5

The molecules of seven different compounds contain the following number of atoms 20, 33, 20, 25, 20, 35, 40. Find the following:

a.    Mean: 27.57

 

b.    Median: 25

 

c.    Mode: 20

 



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