Data collected for 300 fish for north atlantic. The length of the fish (in cm) is summarized in the histogram below.

The lower class limit of the first class is 40

Step-by-step explanation:

Given

See attachment for histogram

Required

The lower limit of the first class

The attached histogram has overlapping interval, and the intervals are:

40 to 60, 60 to 80, 80 to 100, and so on....

The first class here is:

40 to 60

As a general rule; a class is represented by Lower Limit to Upper Limit.

So, by comparison.

Lower Limit = 40

Upper Limit - 60