Gasoline prices varied from state to state. What is the range of gasoline prices? Example 2 : Ms. Kaiser listed 9 integers on the blackboard. What is the range of these integers? Example 3 : A marathon race was completed by 5 participants. What is the range of times given in hours below? Summary : The range of a set of data is the difference between the highest and lowest values in the set.
To find it, first order the data from least to greatest. Then subtract the smallest value from the largest value in the set. However, it is possible for more than one student to get the same grade. For example, there might be two or three students in your class that studied very hard and managed to get a 96 percent as their final grade. Multiple values in the domain can correspond to a single value in the range. What's the range of this function? Although you'll learn more advanced ways of finding the range later on, for now, the simplest way to find the range of this function is to apply the function to each element of the domain, and track your results.
This gives you a set of results:. But as you can see, some elements are repeated there. Recalling the example of math grades as a function, that's okay; more than one student can end up with the same grade, or more than one element of the domain can "point" to the same element in the range. But you don't want to write down the repeated elements when you give the range.
So, your answer is simply:. Lisa studied mathematics at the University of Alaska, Anchorage, and spent several years tutoring high school and university students through scary -- but fun!
So the range of this particular data set is 36 percentage points. Calculate Average Deviation. How to Calculate Variance. How to Calculate Percent Relative Range. What is the weight range of these three horse breeds? What is the range of Marco's mathematics quiz grades? Statistically speaking, most people skip to the answers without doing the math first.
Don't be a statistic! Work the problems out first! Range is used in real life to make mathematical calculations. Range can be used to calculate the amount of time that has passed, like when calculating your age. The current year is , and you were born in How old are you? Or how much time has passed?
Range is also used in real life to figure out the dispersion of a high school class' test scores, to determine the price range for a service, and much more. Get better grades with tutoring from top-rated professional tutors. Get help fast. Want to see the tutors near you? Math Tutors. Find a Tutor.
What Is Range?
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