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    May 2012
  1. I love broccoli... NP can speak in more than 3 languages....
  2. True...my favorite color. NP loves Nutella
  3. I was looking at payback,arr and npv. Any other suggestions ? Anything related to sources of finance ? Havent covered the entire finance in IB1. Could probably do it on my own now. You could look into the different sources of finance available for the company and evaluate them.
  4. There is a whole chapter dedicated to "Location" in the Business syllabus. Other tools that are most frequently used are the PEST and SWOT analaysis as well....
  5. In addition to what HiggsHunter mentioned, taking water pollution from a biological perspective, you can determine the level of the pollution in the river using indicator species... Indicator species are species that require a certain environment to live, for example, some require highly oxygenated water and cannot be found in highly polluted water as other species now are present.... I recommend that you check out the student sheet on this website for a list of these indicator species...http://www.nuffieldfoundation.org/practical-biology/monitoring-water-pollution-invertebrate-indicator-speci
  6. Ahh...it was C I think...The diapraghm contracts and causes inhalation... And I don't the pic had anything to do with the question, it was which of the multiple answers correctly described the function of the diaphragm.....
  7. Ahh...that...they usually do that for this question, however, I think that the role of Pfr is usually to promote flowering in plants, since it is the active form....
  8. P1 - Easy but I messed up a lot in it... P2- Yea true, the data analysis was confusing...short questions were fine. Section B was very weird, they focused on very minor things in the syllabus (Water properties, protein function, and such...) Btw...have you realized that they have focused greatly on plants?
  9. Hi, I'm HL too... Paper 3 was awesome! Yes, they did ask about fleming, florey and chain..but i had read that once, so remembered it...Paper 2, Section A was tough i guess, especially the first question, but overall it was good. Paper 1! God! Don't know what i have done, yes it was not so easy! I just hope i get 30+ on 40 anyhow... How much do you think you'll get in paper 1? And which two questions did you all choose for section B, paper 2? i did, 7 and 10 , and i guess 7 was quite easy! No one in my class did question 8, did any of you opted for 8? It was terrible...thank god i didn't do! An
  10. I am HL too. I found Paper 1 terrible; too much moles I do not understand.... Paper 2 was easier than I expected, espically Section B questions. Paper 3....I chose Analytical and Biochemistry. Biochemistry was much harder than I thought it would be, and I was surprised by analytical: no graphs to analyze but instead they focused on chromotography techniques and such....It wasn't as good as I expected all in all....
  11. Don't you multiply for intersection??? Yea i thought of that too! But those are not independent events, are they? Uggh...I only thought of that after the exam.... Although the only way to find the intersection between them was to multiply them, no? But do yo really need to multiply for intersection, we know that p(x<=2) (or sth nt sure)=p(x=0)+p(x=1)+p(x=2) and p(x=>1)=p(x=1)+p(x=2)+p(x=3)+.... So "intersection" between these two sets are p(x=1) and p(x=2) Hmm...Good point...Didn't really pay attention to that... I found the probability of P(x>1) using GDC so I didn;t really pay
  12. Don't you multiply for intersection??? Yea i thought of that too! But those are not independent events, are they? Uggh...I only thought of that after the exam.... Although the only way to find the intersection between them was to multiply them, no?
  13. I did the opposite Between 1.22 and pi/2 Do you remember the question, as i am not sure, was it sth ike 0<2.6sin(theta)-2(theta), correct me if i am wrong I remember it being between 0 and 1.22 rad because yes something like that was the inequality but it's basically what is on your graph that you would have just used and its all the values of x where y is still positive, because if you solve the inequality that is what you will find and after 1.22 the graph goes below the x-axis. I got confused by this question. The question asks to use the graph of f(x) to find the values, so I though
  14. how did you get 11/21? this is the one with the two white balls from bag A right?? I just multiplied the probabilities of getting white balls along the branches of the tree diagram so I got 3/7 * 2/6 = 1/7 not sure if I read the question wrong now, do you remember how many white balls there were in total in bag A? Hmmm....I am really sorry...I do not remeber the question correctly and I am not sure about my answer either. But yea, when I did it I multiplied along the branches of the tree, so I might have mistook the numbers (but I think part b asked for the probability of getting a white ball
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