The first quartile of the following data set is: 15,16,17,23,11,19,20,15,18,22,15

Order the number from least to greatest:
11,15,15,15,16,17,18,19,20,22,23
Then find median which is 17
Now we have the first set
11,15,15,15,16
Find the median which is 15, and 15 is also the first quartile. As a result, the first quartile of the following data set is 15. Hope it help!

The question is kind of confusing. if it's asking how many variations of answers can you give. then do 4^5 for your answer.this would be something like the first question could be a and the 2nd c or first b next c etc. if you can, ask the teacher for a better confirmation of what it's asking. if i'm assuming correctly what it's asking, it's 625 different variations.