Questions: The histogram to the right represents the weights (in pounds) of members of a certain high-school debate team. What is the class width? What are the approximate lower and upper class limits of the first class? What is the class width? The class width is (Simplify your answer.)

The histogram to the right represents the weights (in pounds) of members of a certain high-school debate team. What is the class width? What are the approximate lower and upper class limits of the first class?

What is the class width?
The class width is
(Simplify your answer.)

Transcript text: The histogram to the right represents the weights (in pounds) of members of a certain high-school debate team. What is the class width? What are the approximate lower and upper class limits of the first class? What is the class width? The class width is $\square$ (Simplify your answer.)

Solution

Solution Steps

Step 1: Identify the class intervals

Examine the histogram to determine the class intervals. The intervals appear to be:

105-115
115-125
125-135
135-145
145-155
155-165
165-175

Step 2: Calculate the class width

The class width is the difference between the upper and lower boundaries of a class interval. For example, for the interval 105-115: \[ \text{Class width} = 115 - 105 = 10 \]

Step 3: Determine the lower and upper class limits of the first class

The first class interval is 105-115. Therefore: