Question

A local real estate agent is interested in the distribution of the square footage of houses in a neighborhood. The following table and diagrams show the distribution of the house sizes for a sample of sixty-nine homes sold in the neighborhood for the past three years. The diagrams presented are the frequency histogram and the relative frequency histogram for the sample. The class mark for the class (25 - 30] is _______.
A) 29.5 B) 27.5 C) 24.5 D)4

Answer 1

The class mark for the class, 25 - 30, in the frequency distribution is: B. 27.5.

What is the Class mark?

The class mark can be defined as the midpoint or mid-value of a given class interval of a frequency distribution. In other words, it is described as the average of the upper and lower limit of a class interval in a given frequency distribution.

How to Find the Class Interval?

To find the class interval, find the sum of the upper limit and the lower limit, then divide the result by 2. The result you get after dividing is the class mark for that class in the frequency distribution.

Given the class, 25 - 30, the upper limit is 30, and the lower limit is 25.

Class mark for the class = (30 - 25)/2

Class mark for the class = 55/2

Class mark for the class = 27.5

Thus, the class mark for the class, 25 - 30, in the frequency distribution is: B. 27.5.

Learn more about the class mark on:

brainly.com/question/19473137

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