In a survey,20 people were asked how many magazines they had purchased during the previous year.The results are shown below.Construct a histogram to represent the data.Use 4 bins with a bin width of 10,and begin with a lower bin limit of -0.5.What is the approximate amount at the centre?
6 15 3 36 25 18 12 18 5 30
24 7 0 22 33 24 19 4 12 9 
Definitions:
Probability (p)
The likelihood of a specific event or outcome occurring, expressed as a number between 0 and 1.
Hypothesis Testing
A statistical method used to make inferences or decisions about population parameters based on sample data, often involving testing an assumption or claim.
Research Hypothesis
A statement positing a relationship between variables or indicating differences among groups, which the research is designed to test.
Confirmation
The process of verifying that a theory, hypothesis, or finding is accurate and reliable through additional observation or experimentation.
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