Quick Quiz: Test Your Skills on Finding the Range

📚 Quick Study Guide

• 🔢 The range is the difference between the highest and lowest values in a dataset.
• 📊 To find the range: Subtract the smallest value from the largest value.
• ✏️ Formula: Range = Maximum Value - Minimum Value
• 💡 Example: For the dataset {3, 7, 2, 9, 5}, the range is $9 - 2 = 7$.
• ➕ Range is a measure of variability. A larger range indicates greater variability.
• 📝 When dealing with functions, the range refers to all possible output values (y-values).

Practice Quiz

1. What is the range of the following data set: 12, 5, 23, 8, 16?
   1. 7
   2. 11
   3. 23
   4. 18
2. Calculate the range for the numbers: -5, 0, 8, -2, 11.
   1. 6
   2. 16
   3. 3
   4. 11
3. Find the range of the set: 1.5, 4.2, 0.8, 2.9, 5.1.
   1. 3.7
   2. 4.3
   3. 2.1
   4. 5.9
4. What is the range of the function $f(x) = x^2$ for the domain $[-2, 3]$?
   1. $[0, 4]$
   2. $[0, 9]$
   3. $[4, 9]$
   4. $[-2, 3]$
5. Determine the range of the heights (in cm) of students: 155, 162, 170, 158, 175.
   1. 15
   2. 20
   3. 17
   4. 27
6. A thermometer records temperatures (in °C) as: 22, 25, 19, 28, 21. What is the range?
   1. 6
   2. 9
   3. 7
   4. 10
7. What is the range of the following set of test scores: 75, 82, 90, 68, 88?
   1. 18
   2. 22
   3. 20
   4. 28