Test Questions on Calculating and Interpreting Range: Grade 7

📚 Quick Study Guide

• 🔢 The range is the difference between the highest and lowest values in a data set.
• 📝 To calculate the range, use the formula: Range = Highest Value - Lowest Value.
• 📊 The range tells you how spread out the data is. A larger range means the data is more spread out.
• 💡 The range is sensitive to outliers (extreme values).
• ➕ The range is a simple measure of variability, but it doesn't tell you anything about the values in between the highest and lowest.
• 📈 Use range to quickly understand the spread, but consider other measures like mean or median for more detailed analysis.

Practice Quiz

1. What is the range of the following data set: 5, 12, 3, 8, 1?
1. 4
2. 9
3. 11
4. 13
2. Calculate the range for the set of numbers: 25, 18, 32, 12, 40.
1. 22
2. 28
3. 30
4. 52
3. If the highest score on a test is 95 and the lowest score is 62, what is the range of the scores?
1. 23
2. 33
3. 35
4. 157
4. A set of data includes these values: 10, 15, 20, 25, and 30. What is the range?
1. 5
2. 10
3. 20
4. 30
5. The temperatures recorded in a week were: 68, 72, 75, 78, 70, 65, 69. What is the range of temperatures?
1. 8
2. 10
3. 13
4. 15
6. What does a large range indicate about a data set?
1. The data is clustered closely together.
2. The data is evenly distributed.
3. The data is more spread out.
4. The data has a low average.
7. In a data set, the highest value is 100 and the range is 45. What is the lowest value?
1. 45
2. 55
3. 65
4. 145