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Cake day: July 1st, 2024

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  • This can also be used a great example of proof by contradiction: There is no correct answer in the options. Proof: Assume there was a correct answer in the options. Then it must be either 25%, 50% or 60%. Now we make a case distinction.

    (A) Assume it was 25. Then there would be two of four correct options yielding in a probability of 50%. Therefore 50 must be the correct answer. -> contradiction.

    (B) Assume it was 50. Then there would be one of four correct options yielding in a probability of 25%. Therefore the answer is 25. -> contradiction.

    © Assume it was 60%. Since only 0,1,2,3 or 4 of the answers can be correct the probability of choosing the right answer must be one of 0% 25% 50% 75% or 100%. -> contradiction.

    Because of (A), (B) and ©, it cannot be 25, 50% or 60%. -> contradiction.




  • bratorange@feddit.orgtoScience Memes@mander.xyzLiquid Trees
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    2 months ago

    Like I always think that people don’t get one thing about trees in a city. There purpose is is not about co2. The co2 reduction of city trees is neglectable. The reason you need them in a city is temperature regulation, shade, air quality, mood, the local eco system and maybe solidifying unsealed ground. Putting these tanks in a city is laughably inefficient w.r.t. co2 conversion if you compare this to any effort to do this in instustrial capacity ( which is is also still laughably inefficient)