Q&A for How to Calculate Range

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  • Question
    What is the range of a list of numbers?
    David Jia
    Academic Tutor
    David Jia is an Academic Tutor and the Founder of LA Math Tutoring, a private tutoring company based in Los Angeles, California. With over 10 years of teaching experience, David works with students of all ages and grades in various subjects, as well as college admissions counseling and test preparation for the SAT, ACT, ISEE, and more. After attaining a perfect 800 math score and a 690 English score on the SAT, David was awarded the Dickinson Scholarship from the University of Miami, where he graduated with a Bachelor’s degree in Business Administration. Additionally, David has worked as an instructor for online videos for textbook companies such as Larson Texts, Big Ideas Learning, and Big Ideas Math.
    Academic Tutor
    Expert Answer
    If you're given a set of data, find the smallest number, then the largest number. Subtract them from each other to get the range.
  • Question
    What would be the range of these numbers - 8, -6, 0, 1, 3, 4, 20 be?
    Chelsea soden
    Community Answer
    First order the data from least to greatest, then subtract the smallest value from the largest value in the set.
  • Question
    How do I calculate mean, median and mode?
    Community Answer
    For mean, add all numbers up and divide them by how many numbers there are. For median, place all numbers in ascending order then find the middle number. For mode, find the most commonly-occurring number.
  • Question
    What is the range of 12,400?
    Community Answer
    You have to have multiple numbers to calculate the range.
  • Question
    How can I find the range with negative and positive numbers?
    Community Answer
    You know that if a negative number is higher, it is less (eg -4 < -2), so the negative with the "highest" number would be the lowest part, and you would then take the highest positive number, and then subtract the lower part from the higher. Eg: Your numbers are -9, -4, 0, 3, and 7. Well, you take the negative with the "highest" positive number, ie., -9, and then the highest positive number, 7. Subtract 7 - (-9), and you get 16.
  • Question
    Why do we measure the range?
    Donagan
    Top Answerer
    It gives us an overview of a set of data, an idea of how much "space" is contained within those data points.
  • Question
    How do I calculate domain?
    Donagan
    Top Answerer
  • Question
    The range is a data set is 14. If the smallest number in the set is 24, what is the largest number?
    Donagan
    Top Answerer
    Add the range to the smallest number.
  • Question
    How do I calculate mean?
    Community Answer
    Add all the numbers and divide the sum by the number of entries in the range.
  • Question
    How do I create range from mean?
    Donagan
    Top Answerer
    If all you know is the mean, you don't have enough information to find the range.
  • Question
    If the lowest number is 0, is it still subtracted from the highest when calculating the range?
    Donagan
    Top Answerer
    Yes. When zero is the lowest number, the highest number is the range.
  • Question
    What is the range for the numbers 12, 8, 17, 12, 15, 18, 30?
    Donagan
    Top Answerer
    Subtract the lowest number from the highest number: 30 - 8 = 22.
  • Question
    What if I have multiple low numbers and a multiple like 2, 2, 4, 5, 6, 14,14?
    Community Answer
    Repeats don't matter. You still have a minimum (2) and a maximum (14) and the range is the difference between them, 14 - 2 = 12.
  • Question
    How do I turn decimals into a fraction?
    Donagan
    Top Answerer
    Use the numbers in the decimal as the numerator, and choose a multiple of ten as the denominator. For example, if the decimal is .35, the numerator would be 35, and the denominator would be 100. For the decimal .842, the numerator would be 842, and the denominator would be 1,000. In each case you would reduce the fraction if possible. If the decimal were 2.25, the numerator would be 25, the denominator would be 100, and the mixed number would be 2 25/100, or 2¼.
  • Question
    What is the range of 4.8 and 4.9?
    Donagan
    Top Answerer
    The range is 4.9 - 4.8 = 0.1
  • Question
    Can 0 be used as a number when working out the range?
    Donagan
    Top Answerer
    Yes. Even though zero seems to have no value, it actually has a relative value and its own place on a number line. Therefore, it takes up space in a data set and must be considered when calculating range.
  • Question
    What is the range for measurement 200 +/- 3%?
    Donagan
    Top Answerer
    3% of 200 is 6. 200 + 3% = 200 + 6 = 206. 200 - 3% = 200 - 6 = 194. 206 - 194 = 12 (the range).
  • Question
    How do I calculate median?
    Donagan
    Top Answerer
  • Question
    What Is the domain and range of f(x) = 3 - x²?
    I_l1ke_gam3s
    Community Answer
  • Question
    Can you subtract 0 from 9?
    Community Answer
    Sure! 9 - 0 = 9. If 9 and 0 are the highest and lowest numbers in a data set, the range is 9.
  • Question
    What is the range of y=12, 13, 20 x=15, 3, 4?
    Community Answer
    Treat the x-values and the y-values separately. The y range is 20 - 12 = 8. The x range is 15 - 3 = 12.
  • Question
    What is the range of 86, 19, 25, 76 and 35?
    I_l1ke_gam3s
    Community Answer
    Subtract the lowest number from the highest number: 86 - 19 = 67. The range is 67.
  • Question
    What is the range of 3, 4, 5, 7, 9, 10, 10?
    Community Answer
    The range is 7. 10 - 3 = 7.
  • Question
    What we do in our observation if the lowest value is zero and the highest value is 96? For example, 23, 45, 47, 87, 96, 0, 12, then what is range?
    Donagan
    Top Answerer
    The range is 96 - 0 = 96.
  • Question
    If you have two small numbers in a range what do you do?
    Donagan
    Top Answerer
    Same as usual: subtract the smaller number from the larger.
  • Question
    What about 3 numbers? Like 14, 90, 69, 14, and 40?
    Donagan
    Top Answerer
    The range is 90 - 14 = 76.
  • Question
    How do I find the range of 50, 76, 88, 93, 99, and 58 if 30 were added to the set?
    Donagan
    Top Answerer
    The new range is 99 - 30 = 69.
  • Question
    What if the smallest number is 0, do you still subtract it form the biggest number for range?
    Donagan
    Top Answerer
    Yes. In this case the highest number is the range.
  • Question
    How will I calculate the range of these numbers 3, 3, 5, 7, 8?
    Donagan
    Top Answerer
    8 - 3 = 5.
  • Question
    Twice a certain number x is greater than 4 find the range of values of x?
    Donagan
    Top Answerer
    Twice 2 equals 4, so x can be any number greater than 2.
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