Books read within the past year || Frequency || Relative Frequency
-----------------------------------------------------------------------------------------
|| none || 10 || ||
|| 0-4 || 4 || ||
|| 5-9 || 1 || ||
|| 10-14 || 10 || ||
|| 15-19 || 2 || ||
|| 20-25 || 44 || ||
To find the relative frequency, I tried doing 10/44, 4/44, 1/44 etc, But it's the wrong answer apparently. All help is appreciated!
There are 71 total books, so that is what you need to divide by, so the weighted sum = 1.
To find the relative frequency, you need to divide the frequency of each category by the total number of observations. In this case, it seems that the total number of observations is missing from the table. To calculate the total number of observations, you need to sum up the frequencies.
From the information given, we can calculate the total number of observations by summing the frequencies:
Total number of observations = 10 + 4 + 1 + 10 + 2 + 44 = 71
Now, we can calculate the relative frequency for each category by dividing the frequency by the total number of observations:
Relative Frequency of "none" = 10 / 71
Relative Frequency of "0-4" = 4 / 71
Relative Frequency of "5-9" = 1 / 71
Relative Frequency of "10-14" = 10 / 71
Relative Frequency of "15-19" = 2 / 71
Relative Frequency of "20-25" = 44 / 71
You can calculate each relative frequency using a calculator or by dividing the numbers manually. Remember to round off the answers to an appropriate decimal place based on the desired level of precision.