FREE MDTP Data Analysis Questions and Answers
In a data set, the range is defined as:
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Wrong!
The range measures the spread of the data by subtracting the smallest value from the largest value.
Which of the following best describes the mean of a data set?
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The mean is calculated by summing all the values and dividing by the total number of values.
What is the median of the data set 3,7,9,15,18?
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Wrong!
The median is the middle value of an ordered data set. Here, 9 is the middle value.
A scatter plot is most useful for determining:
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A scatter plot shows how two variables relate to each other, often revealing correlations.
Which measure of central tendency is most affected by extreme values?
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Wrong!
The mean is affected by extreme values because it takes into account all values in the data set.