can you show mwe how to do this
7) (8 pts)
Construct a histogram and a frequency polygon
for the following frequency distribution:
Class Frequency
0 - 24 4
25 - 49 10
50 - 74 11
75 - 99 5
100 – 124 1
We find the class boundaries by
1. averaging the last number in each class
and the first number in the succeeding class.
2. To find the left class bound for the first
class.
A. Subtract the largest member of the first
class from its right boundary.
B. Subtract this from the first member of
the first class.
2. To find the right class bound for the last
class.
A. Subtract the class boundary of the
smallest member of the last class from
the smallest member of the last class.
B. Add this to the last member of
the last class.
Class Frequency Class boundaries
0 - 24 4 -0.5 - 24.5
25 - 49 10 24.5 - 49.5
50 - 74 11 49.5 - 74.5
75 - 99 5 74.5 - 99.5
100 – 124 1 99.5 - 124.5
So we make this histogram:
To get the frequency polygon, we just connect the successive
midpoints of the tops of each bar in the histogram:
Edwin