<p>Just pure speculation on my part. but if I got about a 50/69 on the MC and around 65% on the FRQs, do I have a shot at a 5?</p>
<p>Interesting. Are you guys allowed to say that since at least 1/5 of the expected cell counts weren’t greater than or equal to 5, then you can’t perform a chi-square test?</p>
<p>@Nidget Depends what form you took</p>
<p>What is cell Z? no cilia, smooth/rough ER, golgia, mitochondria?</p>
<p>was the rat urine question absurdly easy or did i horribly misread that? some kind soul please tell me your answer</p>
<p>I never disclosed any specific MC or FRQ’s from today’s test here or on FB, but can my scores be invalidated for saying “physical science helped me on __<em>”? .</em>.</p>
<p>@thenerdyjew: Cell Z was a red blood cell; its function is to carry oxygen.
@leatherlibrarian: ethyl alcohol increases urine production</p>
<p>@thenerdyjew: Cell Z was a red blood cell; its function is to carry oxygen.
@leatherlibrarian: ethyl alcohol increases urine production</p>
<p>@Rebel You vastly overestimate how much College board cares.</p>
<p>You, sir, are wonderful.</p>
<p>Wait were we only supposed to have a 4 function calculator?</p>
<p>Yes. ****ty little things, really.</p>
<p>@Nidget: Most likely. It’s my first test and I’ve been reading invalidation horror stories lol</p>
<p>Would this have worked; this is how our teacher taught us. </p>
<p>Null hypothesis: The final distribution of the flies after 10 minutes is a result of chance.
So in the end, the hypothesis is rejected, and thus the final distribution is affected by external factors, in this case the ripeness of bananas, besides chance alone.</p>
<p>Would you say the ratios would be the same as those observed after 1 minute? :)</p>
<p>I think the curve will be more lenient because of the nature of this test. It was way different than any practice test or released FR we’ve ever gotten to see before, and under this pressure even people like me who usually ace the class made silly mistakes (putting 100% as decimal form or even skipping a whole FR question). Everyone at my school was pretty devastated. It was more of a logic, data analysis test than a content one. That may make it easier for those who don’t know the material, but also harder since it’s new. I think I did well but then I didn’t finish the last few problems and accidentally skipped a FR. So I’m not sure. I’m still hoping for a 5.</p>
<p>I think both could work. Earlier, ppl were saying 60/0/0 or 30/0/30 were the best answers. Clearly not! Can’t divide by zero!!! Muhahahahaha!!!</p>
<p>@Rebel I feel the same way!</p>
<p>And I tried to divide by zero @84th line, but then explained how that wouldn’t work in my response… how do you think they’d look at that?</p>
<p>here’s my take.
The FRQ for chi square specifically asked for YOUR null hypothesis. essentially, as long as you had numbers that added to 60 and did not result in a divide by zero error, you should be fine.
Acceptable Chi square for expected:
20/20/20
21/18/21
ANYTHING ELSE AS LONG AS ALL NUMBERS ARE NON ZERO
Correct me if im wrong, please, but because the question specifically states “explain YOUR hypothesis,” any numbers that don’t have zeros should be fine, IMO.</p>