A researcher wanted to examine the age of men when they get married.

Question

The following data was collected:
38 32 27 37 33 28 27 38 35 28 34 21
34 29 37 36 25 20 28 41 28 35 36 40
31 25 31 33 34 39 20 29 24 30 31 26
62 23
33
35 27 22 36 39 42 38 29 36
1. If you were going to create a frequency table, starting at 20, with a class width of 4, what would be your classes?

Answer 1

To create a frequency table starting at 20 with a class width of 4, you would set up the classes as follows:

1. Class 1: 20 - 23
2. Class 2: 24 - 27
3. Class 3: 28 - 31
4. Class 4: 32 - 35
5. Class 5: 36 - 39
6. Class 6: 40 - 43
7. Class 7: 44 - 47
8. Class 8: 48 - 51
9. Class 9: 52 - 55
10. Class 10: 56 - 59
11. Class 11: 60 - 63

Note: Since the highest age in the data you provided is 62, additional classes (like 44-47, 48-51, 52-55, 56-59, 60-63) will include no data points, but they are helpful for clarity in frequency distributions. You can stop creating classes after 60 if you prefer.