Range and Variability
Grade 6 · Math · Statistics and Data · New Mexico, USA
Lesson Summary
The range measures how spread out a data set is by finding the difference between the highest and lowest values.
Explanation
The range is the simplest measure of variability. You find it by subtracting the smallest value from the largest. For example, if test scores are 65, 78, 82, 90, and 95, the range is 95 - 65 = 30. A small range means the data values are clustered close together, while a large range means they are spread far apart. Variability tells you how consistent or inconsistent data is, which is important when comparing groups or making predictions.
Practice Questions
Q1: Find the range of this data set: 12, 5, 20, 8, 15.
Answer: 15 (20 - 5).
Q2: Team A's scores: 70, 72, 74. Team B's scores: 50, 70, 90. Which team has a greater range?
Answer: Team B with a range of 40, compared to Team A's range of 4.
Q3: If all values in a data set are the same, what is the range?
Answer: 0, because there is no difference between the highest and lowest values.
People Also Ask
What is Range and Variability in Grade 6 Math?+
Range and Variability is a lesson in the Statistics and Data chapter of Grade 6 Math. It is part of the New Mexico, USA school curriculum and covers key concepts that students need to understand at this level.
What grade level covers Range and Variability?+
Range and Variability is taught in Grade 6 as part of the Math curriculum in New Mexico, USA.
How can I help my child with Statistics and Data in Math?+
Start with the lesson summary and explanation on this page. Practice the questions provided, then use TutorTom for personalized, step-by-step help with Statistics and Data topics.