# Teaching Treasures Statistics with Group Data

## Statistics with Group Data

Below is picture graph showing the salary distribution of employees working at a factory.
Complete the graph using the data given below, making sure you use whole faces at the
beginning of the graph and a half face to finish any amount not divisible by four.

 Employee Salary Graph Income (annually) Number of Employees 7 000 to 9 000 10 000 to 13 000 14 000 to 17 000 18 000 to 21 000 22 000 to 24 000 25 000 to 30 000 31 000 to 45 000

Data

• 7 000 to 9 000 = 10 employees

• 10 000 to 13 000 = 12 employees

• 14 000 to 17 000 = 20 employees

• 18 000 to 21 000 = 16 employees

• 22 000 to 24 000 = 10 employees

• 25 000 to 30 000 = 14 employees

• 31 000 to 45 000 = 8 employees

Each counts for 4 employees
Click on either or then click on the correct place on the graph to insert them.

 Click this then click on a face to delete it.
How many employees receive a salary in the range of:
1. 7 000 to 9 000
2. 14 000 to 17 000
3. 25 000 to 30 000
4. 31 000 to 45 000

What salary range includes more employees than any other?

What percentage of employees earn a salary in the range of: Express as a decimal, round to the nearest hundredth
1. 14 000 to 17 000
2. 7 000 to 9 000
3. 18 000 to 21 000
4. 25 000 to 30 000
5. 31 000 to 45 000

If executive officers, supervisors and managers earn more than 30 000, how many executive officers, supervisors and managers are there?

How many employees are there in total?

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