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Ahly

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  • Gender
    Male
  • Exams
    May 2017
  • Country
    Egypt

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  1. Ahly

    Suez Crisis: A War?

    Hi, Does anyone know if the Suez Crisis is considered by the IB to be a 20th century war? Meaning, I can study it for Paper two World history topic 11: Causes and effects of 20th century wars? Thanks.
  2. 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.
  3. Ahly

    Hat Check Problem - IA

    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.
  4. Ahly

    Calculating e using infinite series

    Very helpful! Thanks.
  5. 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.
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