Question

Construct a relative frequency distribution of your data. Remember each class should have the same width, for example, classes of 0 to 5, 6 to 10, 11 to 15, etc. In 3 tabs:

classes	frequency	relative frequency

Data: The researcher asks 25 students, "On average, how many hours daily a college student spends on social networks?"

Respondent   Hours of S.N.

1	1h40m
2	2h30m
3	2h30m
4	2h30m
5	2h10m
6	2h
7	2h
8	3h
9	2h20m
10	2h20m
11	2h20m
12	2h40m
13	2h30m
14	2h30m
15	2h30m
16	2h10m
17	2h50m
18	2h50m
19	2h10m
20	2h
21	1h50m
22	1h50m
23	2h40m
24	2h30m
25	3h

Answer 1

First we will convert the data into minutes, we have:

Respondent   Hours of S.N.      

1	1h40m=100min
2	2h30m=150min
3	2h30m=150m
4	2h30m=150m
5	2h10m=130m
6	2h=120m
7	2h=120m
8	3h=180
9	2h20m=140m
10	2h20m=140m
11	2h20m=140m
12	2h40m=160m
13	2h30m=150m
14	2h30m=150m
15	2h30m=150m
16	2h10m=130m
17	2h50m=170m
18	2h50m=170m
19	2h10m=130m
20	2h=120m
21	1h50m=110m
22	1h50m=110m
23	2h40m=160m
24	2h30m=150m
25	3h=180m

Here minimum is 100 and maximum is 180

Therefore the class width is:

h=30, Rounding off to nearest tens.

Hence the frequency distribution is

classes

frequency

relative frequency

100-130                        6                              6/25=0.24

130-160                      13                               13/25=0.52

160-190                       6

Total       =              25                                     6/25=0.24