Answer: The approximate population mean for student applications (in thousands) is 214.
Explanation:
Since we have given that
Semester Student applications (in thousands)
1 106
2 137
3 285
4 120
5 202
6 195
7 327
8 139
9 307
10 318
11 212
12 217
As we know the formula for Population mean i.e.

So, we get that

Hence, The approximate population mean for student applications (in thousands) is 214.