blakelyolivia123
New Member
How far in advance should I begin studying?
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1,001 questions about the ASTB (post your scores & ask your questions here!)
- Thread starter edato
- Start date
elariosa95
SNA (A-Pool)
The best time time to start studying is yesterday.
The second best time is right now.
FlyingGamecock
Well-Known Member
Pretty positive the trigger is even and clutch is odd.
elariosa95
SNA (A-Pool)
To go off what I said, definitely DO NOT cram for the ASTB! You only get three chances total, and you don’t want to waste them.
I was studying probability worksheets in Kyle's and Gomez' drive, but it seem like a lot of those questions are designed to be practiced with a calculator as a lot of the division is nearly impossible to do quickly without one. How should I go about studying probability w/out a calculator? Most of my knowledge is based on permutations and combinatorics, which primarily involve factorials which are time consuming to hand calculate past 5! or 6!. Should I just memorize up to 10!?
E.g.
A fair coin is flipped ten times. What is the
probability of the coin landing heads up
exactly six times?
I know to solve this with P = 10 C 6 / 2^10. With hand calcs, this becomes 10! / (6! 4! * 1024) = 3628800 / 6! * 24 * 1024. Obviously this can't practically be done without a calculator in the time you need to get it done on a test. A quicker option could be drawing a chart out with every possibility and counting the times the coin lands heads up 6 times, but when you need to solve each problem in ~50 seconds, this is also really time consuming. How else could I go about a problem like this in a time considerate manner?
E.g.
A fair coin is flipped ten times. What is the
probability of the coin landing heads up
exactly six times?
I know to solve this with P = 10 C 6 / 2^10. With hand calcs, this becomes 10! / (6! 4! * 1024) = 3628800 / 6! * 24 * 1024. Obviously this can't practically be done without a calculator in the time you need to get it done on a test. A quicker option could be drawing a chart out with every possibility and counting the times the coin lands heads up 6 times, but when you need to solve each problem in ~50 seconds, this is also really time consuming. How else could I go about a problem like this in a time considerate manner?
When dividing factorials by factorials you can usually cancel out a ton of like numbers in the numerator and denominator. You won't need a calculator for any problems on the astb. You should be good at doing basic stuff in your head/on paper.
elariosa95
SNA (A-Pool)
This^^
When I took it, one of the questions I got was the probability of the numbers on a pair of dice adding up to 8. Not terribly time-consuming but worth knowing how to do ahead of time just so you're prepared for different cases.
Idk why I never realized that. Thanks
I think I can handle something like that, where you can count up the possibilities in your head and divide by 36, but do you remember any more complicated probability questions, maybe something along the difficulty of this worksheet? I seem to remember some on my first try that I wasn't confident on but I don't remember the details.
elariosa95
SNA (A-Pool)
I remember seeing a problem in the Barron's ASTB book about the probability of getting x number of boys out of y number of children. Other than that, I can't remember any others.
aymanb1234
New Member
they are “less than” and “greater than” symbols
Hello Everyone.
I am an OCC applicant for the USMC. I want to fly for the Marines. I am 25 (going on 26) years old. I have taken the ASTB twice and achieved nearly the same (non-qualifying) scores 53/5/4/6 and 52/5/4/5 respectively. For Marines, I have been told through my recruiter that the PFAR and the FOFAR are paramount, requiring 6's to qualify.
It is quite clear that what I have done thus far is not working, which is why I am here. I am currently reading through the forum looking for the drives, guides, etc that I've seen mentioned thus far. Does anyone have any suggestions (although I am sure I'll read through some of them in this thread) on improving performance on the PBM section? I absolutely suck on that part, and it needs the most improvement (although all my sections do as well). Anything is appreciated. Thank you for taking the time, and I am glad that something like this exists not only so I can benefit from it, but also so I can pay it forward (hopefully) later on down the road.
Major: Bachelor of Arts in Economics
College: University of San Diego (2020)
GPA: 3.26
Branch: USMC
Very Respectfully,
Nigel Ward
I am an OCC applicant for the USMC. I want to fly for the Marines. I am 25 (going on 26) years old. I have taken the ASTB twice and achieved nearly the same (non-qualifying) scores 53/5/4/6 and 52/5/4/5 respectively. For Marines, I have been told through my recruiter that the PFAR and the FOFAR are paramount, requiring 6's to qualify.
It is quite clear that what I have done thus far is not working, which is why I am here. I am currently reading through the forum looking for the drives, guides, etc that I've seen mentioned thus far. Does anyone have any suggestions (although I am sure I'll read through some of them in this thread) on improving performance on the PBM section? I absolutely suck on that part, and it needs the most improvement (although all my sections do as well). Anything is appreciated. Thank you for taking the time, and I am glad that something like this exists not only so I can benefit from it, but also so I can pay it forward (hopefully) later on down the road.
Major: Bachelor of Arts in Economics
College: University of San Diego (2020)
GPA: 3.26
Branch: USMC
Very Respectfully,
Nigel Ward
aymanb1234
New Member
I’m on the same boat with a 52 and 5’s across the board so i’m also looking for a response. All you need is a 4 on the AQR and a 6 on the PFAR, they don’t care about the FOFAR anymore. I have been told by my OSO that there are one point waivers for those that get a 5 on the PFAR to make it a 6, if that’s what it comes down to on your last attempt, hopefully that won’t be the case but thought I could relay that info if worse comes to worst.
They were together, as in <m> = .... (some equation)
exNavyOffRec
Well-Known Member
That one point waiver has been talked about several times before, none who have talked about it somewhat recently ever talked about being able to obtain it. In most cases the question will be can we not get enough applicants so we need to give a waiver. The views on waivers often change based on who is in charge, ideally study and obtain a score so you can avoid needing a waiver.