Explanation
A histogram is a display of statistical information that uses rectangles to show the frequency of data items in successive numerical intervals of equal size
Step 1
(a) bottling plants in interval (25-31)
given
we can see that for the interval (25-31) the number of bottling plants is 5
a)5
Step 2
b)
class width:The class width of a histogram refers to the thickness of each of the bars in the given histogram
Calculate the range of the entire data set by subtracting the lowest point from the highest,
Divide it by the number of classes,so
[tex]class\text{ width=}\frac{35}{5}=7[/tex]
Step 3
finally ,how many bottling plants had 24 or fewer work stoppages?
so, to find the total, we need to add
[tex]total\text{ =4+9+6=19}[/tex]
so, 19 bottling plants had 24 or fewer work stoppages
c)19
I hope this helps you
