The histogram below presents the compressive strengths of a sample of concrete blocks hardened for 28 days. One rectangle from the histogram is missing. What is its height?

Solution 8E

Step1 of 2:

We have a Histogram and that presents the compressive strengths of a sample of concrete blocks hardened for 28 days.

Our goal is here One rectangle from the histogram is missing.we need to find What is its height?

Step2 of 2:

Let us consider the missing rectangle has a height of “X”.

From the above histogram we can notice that the...