Question

2.2 histograms and dot plots
based on the histogram above, what is the frequency of the class containing the value 4

Explanation:

Step1: Identify the class for value 4

The histogram's x - axis has intervals. The interval containing 4 is 3 - 5 (since 3 ≤ 4 < 5, assuming the class width is 2, as the intervals are 1 - 3, 3 - 5, 5 - 7, etc.).

Step2: Find the frequency of this class

Looking at the histogram, the bar corresponding to the class 3 - 5 (which contains 4) has a frequency of 2 (from the y - axis, the height of the bar for 3 - 5 is 2).

Answer:

2