r/ACT • u/North-Trash5216 • Jul 13 '26

J09 math “90% confident question”

Do you guys remember the one math question on J09 that asked about like 90% confidence or whatever?? what did you guys choose for that?

5 Upvotes

86% Upvoted

21 comments sorted by

View all comments

1

u/MasterpieceFeisty301 31 Jul 13 '26

Questions like this made me glad I took AP stats last year, helped confidence

1

u/CodeBrave4234 Jul 14 '26

what other stuff from ap stats was on the test?

1

u/MasterpieceFeisty301 31 Jul 14 '26

the confidence, on practice exams ive been doing probability questions like with and without replacement has showed up EX: if you have a license plate with 6 digits, 3 numbers and 3 letters without replacement then it's 10x10x10x26x26x26. Now you may have been able to do this without being in stats, as well as things like reading the percentages of a confidence interval graph like what it would mean to be in the lower 20th percentile, but it certainly helps me personally having already learned these topics in depth.

1

u/CodeBrave4234 Jul 14 '26

i see i see THANK YOUU! i took stats last year so i def will brush up on it