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Statistics Worksheet

 

Statistics Worksheet                                                 Name: _______________________________

 

Q.1      24 fifth-year pupils were asked to choose from an option of 4 subjects.  The results are in the table below

Accounting

Applied Maths

Physics

French

5

8

4

7

 


 Illustrate the data with a pie chart. 

What percentage of the 24 pupils chose applied maths?                         _____________

 

 

 

 

 

 

 

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 Q.2      The table below shows the number of days on which pupils in a certain class were absent during the    

   
           month of December  

No. of days absent

0

1

2

3

4

5

No. of pupils

8

6

4

5

4

3

              i)                    How many pupils are in the class?                     ___________

              ii)                  
What is the mode of the distribution?                 ___________

             
iii)         Calculate the mean number of days absent.        ___________

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Q.3      The following table shows the number of different drinks purchased from a vending machine on a particular day:  

Drink

Tea

Coffee

Chocolate

Soup

Other

Number of drinks

11

12

10

8

9

           

 

  i)                    Represent the data with a bar chart

  ii)                   What was the total number of drinks sold on the day?                _____________

  iii)                 Express the most popular drink as a percentage of the total number of drinks sold on that day.                                                                                                                  ____________

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Q.4      The number of microwave ovens sold in a particular six-day period by a large electrical shop is shown below:  

Day

Monday

Tuesday

Wednesday

Thursday

Friday

Saturday

Sales

5

7

10

6

8

12

 

         i)                   Show the data on a trend graph

         ii)                 How many microwave ovens were sold during the six days?                        ________

         iii)               Express the number of microwave ovens sold on Monday and Tuesday as a percentage of the total number sold for the six days.                                                                                                 ________

         iv)                The profit on one microwave oven is €40.  Calculate the profit on the sales for the six days.                                                                                                                  ________