@jetynz well it is between 7/8 and 4/3 right. So the range is 1/8 + 1/3. Then I want numbers greater than 1, which is 1/3. So it is 1/3 over (7/8 + 4/3)
@idkname Maybe i’ve just been out of Algebra 2 for a while, but I don’t understand how you’re allowed to make the connection of the ‘range being 1/8 + 1/3’ the range of what? I just don’t see how that fits in. Numbers greater than 1 --> how did that get you 1/3? And then why do you just divide 1/3 by this so called ‘range’?
Maybe its just been awhile for me lol
@jetynz well, i’m not really confident on the answer so maybe you are right (your way still doesn’t make sense to me). But this is a probability question. I got 1/8 + 1/3 because that is the range of the number line. You know the number is between 7/8 and 4/3 right. So imagine a number line with one end at 7/8 and 4/3 on other then. Then there is 1 in between. Then I calculated how far 1 is from 4/3. Then divide that distance by the total distance to get the probability.
EDIT:
can you explain your way again. How did you get 9/12 or 3/4?
@idkName AHHHHH That makes so much more sense. The number line explains it. The only reason i think there might be the slight difference between ours is that your way doesn’t take into account the value of 1, just the two sides. Right so above it is 1/3 and below it is 1/8, but what about on it? The ratio and just itself just doesn’t work.
The way we did it was by starting with common denominators so the 7/8 and 4/3 become 21/24 and 32/24
Then to just test a certain range of numbers to get the percentage that were at or above 1 we lined up a certain amount of numbers in that fraction.
21 22 23 24 25 26 27 28 29 30 31 32
24/24 is 1, so that and everything above it is over 1.
so 9/12 are at or over 1.
But maybe I’m wrong
@jetynz I thought about the number 1. So what do you get if you don’t account the value one?
@idkName Well from our math if you didn’t take 1 into account:
21 22 23 --24-- 25 26 27 28 29 30 31 32
8 are above it, 3 below
8/11 --> What you got
Wait if you make it a bunch of fractions though, then doesn’t that not account for all of the numbers between 7/8 and 4/3?
@matchachacha yeah exactly… I don’t know. Maybe you guys are right.
Ugh… so I might be down to 2 skipped 3 wrong now D: The 800 seems out of reach
^ lol dw still better than me I omitted 5 missed one woohoo
@jetynz, wow that is a very clever way of approaching it.Ultimately, it depends if the question is asking greater than 1 or great or equal to one. If it was greater or equal to one, I would have never figured out your way.
Really hope this test has a very generous curve.
What’s the curve usually?
And was this test harder than usual?
My life is rip. Last year paper had like simple questions, could be done using the calculatpr directly. But… :’( this time’s paper was so hard!
@matchachacha that is what most people said idk.
even if I get only 4-5 wrong I’m screwed :-/ kill me
yup so I got that wrong… lol
Because the period is one and one second is a period 60 beats per minute
wt did u guys get for the two data sets i chose 2 and 3 (standard dev and range were the same)
What did you get for the distance between (x,y) and (0,b) ? Was it the one with the radical without the aboslute value?
Also, how did you solve the last problem? f(5) = ?
Was the answer for the arc (2nd to last) in the circle 0.3?
Lastly, was the one with the perpendicular and absolute value 4? I guessed…
I skipped 2, I know I got the heartbeat/period one wrong and probably some others
I took this test in December and skipped 5 and got around 3 wrong (probably some more, IDK). I got a 760. Aiming for higher than 780… maybe a 800? (prays)
ALSO, this test is wayyy harder than the December one. Like the one in December started out SO EASY compared to this one (they asked a simple algebra substitution question). But then I again I didn’t study between that time.