Question

HELP NEEDED!!!!

The table gives 20 years of data on the number of students in a particular school who dropped out in the ninth grade. A sample is taken to include only the last 3 years of this data. With this information, calculate both the population mean and the sample mean for ninth-grade dropouts per year.

Answer 1

Year Number of Dropouts
1 7
2 8
3 6
4 6
5 6
6 4
7 4
8 1
9 2
10 7
11 6
12 1
13 1
14 1
15 3
16 3
17 5
18 4
19 5
20 7

Answer 2

a-The population mean is 4.35. The sample mean is 5.33.

Answer 3

It's not a test ;)

Answer 4

@Mehek14