00:01
Here we are asked to determine what the key terms refer to in the survey.
00:05
The survey was intended to find the average number of classes that students at this college take.
00:11
And they took a group of 32 students and had them tell how many classes they were taking this semester, either one, two, three, or four.
00:22
So i believe what we're supposed to do in this question is match these four terms to these four sentences.
00:30
Now the first one is statistic.
00:36
Statistics always pertain to samples.
00:41
And a statistic is typically some calculation done with the sample information.
00:45
For example, the sample mean or the sample variance or the sample proportion.
00:53
So here the sample is the 32 students.
00:57
And so the average number of classes of these 32 is the sample mean, which is a statistic.
01:05
Second one is the sample itself...