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HOW are quartiles helpful in describing data?
They are a simple measure of the spread of the data, which is not affected by extreme values.
What is the term in statistics for the difference between the smallest and largest values in the data set?
RangeThe term for the difference between the smallest and the largest values in a set of data is called the range. It is probably derived from the idea that the values of the numbers in the data could range anywhere from the lowest to the highest values but not beyond. The range is a measure of how disperse (spread out) the values are but it is not a very powerful measure.
A data value that is much higher or lower than any other data values in a set?
the data value that is much higher or lower than the other data given is called an outlier
How do you convert data values into percent of a whole and then convert percent to degrees to construct a circle graph?
Sum all the data values together: this is the whole. To convert each data value into a percentage, divide it by the whole and multiply by 100. To convert the percentage into an angular measure in degrees, multiply the percentage by 3.6
What is a set of numerical data?
In statistics numerical data is quantitative rather than qualitative.
