Podcast
Questions and Answers
Define the term 'mean'.
Define the term 'mean'.
The mean is the average of a list of numbers.
What is the mode of the following set of numbers: 1, 2, 3, 4, 4, 5, 5, 6, 6, 6?
What is the mode of the following set of numbers: 1, 2, 3, 4, 4, 5, 5, 6, 6, 6?
The mode is 6.
Explain how to find the median of a set of numbers.
Explain how to find the median of a set of numbers.
If the number of data points is odd, the median is the middle point. If the number of data points is even, the median is the average of the two middle numbers.
List three types of graphs used to display data and give a brief description of each.
List three types of graphs used to display data and give a brief description of each.
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Why is it important for data to be valid?
Why is it important for data to be valid?
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Which type of graph is best suited for showing the relationship between two variables in a data set?
Which type of graph is best suited for showing the relationship between two variables in a data set?
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What type of graph would be most appropriate for representing the distribution of ages in a population?
What type of graph would be most appropriate for representing the distribution of ages in a population?
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In a scatterplot, what does a positive correlation between two variables indicate?
In a scatterplot, what does a positive correlation between two variables indicate?
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When is a pie graph most useful in data representation?
When is a pie graph most useful in data representation?
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Which type of graph is suitable for comparing different categories or groups with distinct bars?
Which type of graph is suitable for comparing different categories or groups with distinct bars?
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