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Write the (i) lower boundary and (ii) up...

Write the (i) lower boundary and (ii) upper boundary of the class 20-30, if the classes are 10-20, 20-30, 30-40,…… .

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To find the lower and upper boundaries of the class 20-30, we can follow these steps: ### Step-by-Step Solution: 1. **Identify the Class Interval**: The class interval given is 20-30. This means we are looking at all values that fall between 20 and 30. 2. **Determine the Lower Boundary**: - The lower boundary of a class interval is defined as the smallest value in that class. - For the class 20-30, the smallest value is 20. - Therefore, the lower boundary is **20**. 3. **Determine the Upper Boundary**: - The upper boundary of a class interval is defined as the largest value in that class. - For the class 20-30, the largest value is 30. - Therefore, the upper boundary is **30**. ### Final Answer: - (i) Lower Boundary: **20** - (ii) Upper Boundary: **30**
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