A is a that displays data collected from one source that belongs to two different categories. We want to find the of students that studied independently for more than 2 hours to the total number of students who studied independently. We will start by looking at the given table.
|
Studies Less Than 2 Hours
|
Studies More Than 2 Hours
|
Studied Independently
|
12
|
4
|
Studied with a Study Group
|
8
|
11
|
We can see in the table that there are
4 students who studied independently for more than
2 hours. Now we will calculate the total number of students who
studied independently. To do so, we can add the number of students who studied independently for less than
2 hours to the number of students that
studied independently for more than 2 hours. Let's do it!
Studied Independently: 12+4=16
Finally, we can find the the missing frequency. To do so, we calculate the of the number of students who
studied independently for more than 2 hours and the total number of students who
studied independently.
The frequency of students that
studied independently for more than 2 hours to the total number of students who
studied independently is equal to
0.25. This result corresponds to answer
C.