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The prices of $100$ college textbooks were recorded. The range of the prices is from $\$59$ to $\$280$.
What is true among the following statements when the data is presented in a frequency distribution?
The "2 to the k rule" can be applied.
Number of classes should be equal to the number of the prices.
Having more classes is better than having fewer classes.
Class interval is NOT related to the number of classes.