Question

My question is: The school action society asked its members how many hours they had worked during the previous week in part-time jobs. The following data lists the number of hours spent working during the previous week.
6 6 6 4 6 6 9 8 6 3 7 6
6 7 6 6 7 6 6 8 6 7 8 4
a: from these data construct a frequency table with the included columns. Round the relative frequencies to three decimal places.


Hour Tally Frequency Midpoint Relative
f Frequency
3 - 4
5 - 6
7 - 8
9 - 10

So when I tried to figure this out I started with
the minimum data entry: 3
The maximum data entry: 9
The range: 9 - 3 = 6
then I am suppose to divide the range by what? That is where I get messed up. I think if I can figure out what I am suppose to be dividing I will get the answer. If someone can just help me get started

Answer 1

you need to first tally the time slots, eg, how many worked either 3 or 4 hours? Put that by 3-4, divided by the total number of people (I count 24). That is the frequency of those working 3-4 hours. Do that for each of the four time slots.
The sum of the four frequencies should add to 1.0 If it does not, there is an error.