SEC 2 ELEMENTARY MATHEMATICS CHAPTER 13: Mean,Median,Mode Worksheet 13.2 Name: _________________________ ( Class: 2__

)

Date: _________

1. The following shows the number of goals scored by a footballer in twelve soccer matches. 4, 1, 2, 1, 0, 1, 4, 3, 0, 4, 1, 3 (a) Find the mean number of goals scored. (b) Find the modal number of goals scored. (c) Find the median number of goals scored. Solution:

2. The masses, in kilograms, of 10 bags checked in to a flight, were measured. The results are shown below. 20 21

22 23

20 20

23 22

20 22

(a) What is the mode of the mass? (b) Calculate the median mass. (c) Another bag is now added. Given that the new mean mass is 20kg, find the weight of this bag. Solution:

3. The following is a record of goals scored by a netball team in 14 matches. 1, 4 , 5 , 9 , 4 , 10 , 4, 4 , 8 , 8 , 7 , 8 , 5 , 7 (a) (b) (c) (d)

Construct a dot diagram to represent the above data. State the modal score. Find the median score. Calculate the mean number of goals scored.

Solution: (a)

4. Given a set of numbers 11, 7, 5, 8, 23, 34 and 17, (a) calculate the mean, (b) find the median. Solution:

5. The masses, in kilogrammes, of 12 people were measured. The results are shown below. 75 72

60 54

84 68

47 54

54 69

66 56

(a) Calculate the mean mass. (b) Find the median mass. Solution:

6. The following are marks scored by 10 students in a Mathematics test. 3, 6, 4, 3, 5, 6, 7, 9, 6, 4 If the total marks of the test is 10 marks, find the (a) modal mark, (b) median mark, (c) mean of this set of marks.

Solution:

SEC 2 ELEMENTARY MATHEMATICS CHAPTER 13 ...

The following shows the number of goals scored by a footballer in twelve soccer matches. 4, 1, 2, 1, 0, 1, 4, 3, 0, 4, 1, 3. (a) Find the mean number of goals scored. (b) Find the modal number of goals scored. (c) Find the median number of goals scored. Solution: 2. The masses, in kilograms, of 10 bags checked in to a flight, ...

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