2022 AP Statistics Free Response #3

Walkthrough of the 2022 AP Statistics Free Free Response #3

Link to the released FRQs:

Link to my PDF Solutions:

AP® is a trademark registered by the College Board, which is not affiliated with, and does not endorse, this content.

[AllenTsaoSTEMCoach]

Corrections/Clarifications:

part (c) It wasn't a yes/no question. I should have explicitly stated that I recommend the old programming.

[teamir]

I basically completely skipped this quesrion😭

[riley]

Do u think I will get a P on b i) if I put X=# of underfilled in a given box but I'm pretty sure I forgot to write binomial. I misread the question and thought it was asking for its shape so I put skewed to the right because np was small and then for the calculation I did 1-p^10-10p^9(1-p). Do u think it will be implied binomial or did u have to state it and write the conditions? Thx

[Ookashay]

For part A wouldn't you have to show the calculation of getting a z-score?

[tanyaliu]

For part (c), I did a little extra work and calculated the 1-binomcdf values using the new value they give us. I got the same answer as you but do you think they would mark it wrong?

[danielneill]

Is ok if I never wrote p(x>2) or what ever but got the right answer with the rest of the work

[anonymousalexa]

For parts a and c, is it required to write normalcdf and the mean, standard deviation, upper, and lower bounds? Everything else I did right, just want to make sure I won’t get marked off for that.

[clintn.kildepstein]

Bruh for part b in part ii I wrote the answer to part i do you think they’ll give me credit?😬 like in part i I didn’t know they were only asking if it was binomial, but in part ii I explicitly wrote that I was doing binomial cdf

[h-daubs]

For parts A and B, I believe I got the correct answer but my process to get that answer was probably not as clear as the AP grader would want. I additionally said the original programming and gave reasoning comparing the two probabilities based off z-score. What do you think this would get me out of 4?

[alishamittal]

For the last part, I said that you should keep the original programming because there is a smaller chance of the crate being rejected...would this be correct?
Thank you!