Ahly

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About Ahly

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  • Gender
    Male
  • Exams
    May 2017
  • Country
    Egypt
  1. I am trying to take the other posts down. I didn't know that was a thing. Sorry. Thanks for the feedback though.
  2. Hi, For my IA I settled on constructing an equation that attempts to model the exponential growth/decay of "something". I would then use line of best fit etc. to make it more accurate. Finally, I would use a 'standard formula' and compare accuracies. Do you have any ideas for things that could be modeled? I figured the population of Egypt but it looks more linear than exponential. I would also like something that has a formula other than the standard exponential formula of P=Ce^t. I should note that I was inspired to do this by a sample IA posted by the IB on the cooling of tea. The three methods as well are taken from the IA. (P.s. Would that be plagiarism? I will make sure no figures/formulas are the same. I would just like to mimic how the student went about answering the problem).
  3. Hi, for my IA I was thinking of doing the hat check problem. Essentially it goes like this; group of men walk into a restaurant checking in n number of hats at the door. The restaurant mixes the the hats up and as the evening is over, each man is randomly given a hat from the pile. What is the probability that no person gets their hat back? Suprisingly, the answer is 1/e. I am a math Sl student. I figured HL/further math students would likely recognize the problem. If anyone is familiar with the problem could you please elaborate on whether this is SL level or above. I have found some explanations rather complicated and wondered whether it was ultimately worth it given the amount of energy it would require with mocks coming up. I know I would be able to get my head around it, but have begun to doubt whether the return (in terms of marks) for this question would be worth it. I have time to change my topic so I am not particularly worried.
  4. Hi, for my IA I was thinking of doing the hat check problem. Essentially it goes like this; group of men walk into a restaurant checking in n number of hats at the door. The restaurant mixes the the hats up and as the evening is over, each man is randomly given a hat from the pile. What is the probability that no person gets their hat back? Suprisingly, the answer is 1/e. If anyone is familiar with the problem could you please elaborate on whether this is SL level or above. I have found some explanations rather complicated and wondered whether it was ultimately worth it given the amount of energy it would require with mocks coming up. I know I would be able to get my head around it, but have begun to doubt whether the return (in terms of marks) for this question would be worth it. I have time to change my topic so I am not particularly worried.
  5. Very helpful! Thanks.
  6. Hi, For my Math IA, I'm planning on exploring the number e and how it relates to change. I know I am able to understand the mathematics behind it but is that enough for the exploration? Do I have to apply the concept and provide date and all that to a real life situation in order to receive high marks? Finally, must the mathematics included in the exploration be entirely my work or must I simply demonstrate understanding through explaining the mathematics? Thank you.