Math, statistics... How to I make a frequency distribution with this?
Just answer the frequency distribution. Once I know that, I can do the rest on my own.
- PuzzlingLv 74 months ago
Create your classes starting at 35000 and a width of 5000 per class.
35000 ≤ x < 40000
40000 ≤ x < 45000
45000 ≤ x < 50000
50000 ≤ x < 55000
55000 ≤ x < 60000
60000 ≤ x < 65000
65000 ≤ x < 70000
70000 ≤ x < 75000
Now for each median household income for the 50 states + DC, add a tally mark for the appropriate class. For example, 39,622 would go in the first class. At the end, add up how many values are in each class.
The table with 8 classes with numbers next to them become your frequency distribution.
Now turn the numbers into a percent. There are 51 total values, so divide each tally by 51 and then write it as a percent.
If you had 3 in a specific class:
3/51 = 1/17 = 0.05882 ≈ 5.9%
Write down each of the classes and instead of the absolute number, put the percentage. You have a *relative* frequency distribution.
Turn the result from A into a histogram (a bar chart)
Turn the result from B into a histogram (a bar chart, but with percentages instead of absolute frequency counts).