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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 intervalFrequency
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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