how are you suppose to understand this stuff?

Study, study, study!

Practice, practice, practice!

ok my question is (if you have a stats book its page 101 question 1.i.)

how do you get the answer if the percentile is 30 and you have 41 numbers in your data table and the 30th number is 57 but when you the equation its not the same answer in the back of the book?

We haven't a clue about which stats book you're using. Plus -- most of us don't have multiple stats book here at home.

With 41 numbers, 12.3 is the top of the 30th percentile.

its the mario f. triola copyright 2002 issue

now how did you get that?

41 * 0.3 = 12.3

Understanding something can be challenging, but with the right approach, it becomes easier. Here are a few steps to help you understand difficult concepts:

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7. Teach someone else: Explain the concept to someone else. Teaching others reinforces your understanding and exposes any gaps or misconceptions you might have.

Remember, understanding complex ideas takes time and effort. Be patient, persistent, and open to new perspectives, and remember that everyone learns in their own unique way.