Consider the following data representing the price of laptop computers (in dollars).

1204,1206,1345,1306,1207,1078,1357,1232,1228,1302,1189,1177,1083,1094,1326,1071,1427,1348,1420,1253,1270

Price of Laptop Computers (in Dollars)
Class	Frequency	Class Boundaries	Midpoint	Relative Frequency	Cumulative Frequency
1050–1119
1120–1189
1190–1259
1260–1329
1330–1399
1400–1469
Step 4 of 7 :  Determine the upper class boundary for the fourth class.

To determine the **upper class boundary** for the fourth class, we first need to understand the class intervals and their boundaries.

### Given Classes:
- 1050–1119
- 1120–1189
- 1190–1259
- 1260–1329 (fourth class)
- 1330–1399
- 1400–1469

### Understanding Class Boundaries:
Class boundaries adjust the class limits to avoid gaps between them. To find the upper class boundary, you typically add 0.5 to the upper limit of the class.

For the **fourth class (1260–1329)**:
- The upper limit is **1329**.
- The **upper class boundary** is calculated by adding 0.5:

\[
1329 + 0.5 = 1329.5
\]

Thus, the **upper class boundary for the fourth class** is **1329.5**.

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Would you like details on any part of this calculation?

Here are 5 related questions to explore:
1. How do we calculate the midpoint for the fourth class?
2. How is relative frequency determined for each class?
3. What is cumulative frequency, and how is it calculated?
4. How do class boundaries help in data interpretation?
5. How do we plot a histogram using this data?

**Tip**: Always ensure that your class intervals are mutually exclusive and exhaustive for accurate data analysis.

Determine the upper class boundary for the fourth class: 1260–1329.

Learn how to calculate the upper class boundary for the fourth class (1260–1329) in a frequency distribution. This solution explores statistical concepts like class boundaries, frequency distribution, and the formula for calculating upper class boundaries. Perfect for high school students in Grades 9-11.

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