Problems 17 and 18 use the following definition of the modal class. The modal class of a variable can be obtained from data in a frequency distribution by determining the class that has the largest frequency. Determine the modal class of the frequency distribution in Problem 2.

Verified step by step guidance

1. Recall that the modal class in a frequency distribution is the class interval with the highest frequency.
2. Locate the frequency distribution table from Problem 2, which lists class intervals and their corresponding frequencies.
3. Examine the frequencies for each class interval carefully and identify which class interval has the largest frequency value.
4. The class interval with the largest frequency is the modal class.
5. Write down the modal class as the answer, specifying the class interval range.

Key Concepts

Frequency Distribution

A frequency distribution organizes data into classes or intervals and shows how many data points fall into each class. It helps summarize large data sets and identify patterns such as the most common values.

Modal Class

The modal class is the class interval in a frequency distribution that has the highest frequency. It represents the range where the data values occur most frequently, indicating the mode for grouped data.

Identifying the Modal Class

To find the modal class, examine the frequency distribution and locate the class with the largest frequency count. This class is considered the modal class and helps describe the data's central tendency in grouped data.