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Answer variants:
10 - 20
20 - 30
30 - 40
40 - 50
50 - 60
Consider the following tabular column. If the value of \(x\) is 31, answer the questions that follow.
| Class interval | Frequency |
\(10\) - \(20\) | \(x - 3\) |
\(20\) - \(30\) | \(2x + 5\) |
\(30\) - \(40\) | \(x\) |
\(40\) - \(50\) | \(x + 2\) |
\(50\) - \(60\) | \(2x\) |
1. Which of the class intervals will have the tallest frequency rectangle?
The class interval is .
The frequency is .
2. If two class intervals are combined, which two class intervals will have the tallest frequency rectangle?
The class intervals are and .
The total frequency is .
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