C3_W1_Lab_2_Birthday_Problems - Analytical solution problem 3

This is regarding the analytical solution for problem 3.

Could anyone please help. I don’t get where the 2 in ln 2 is coming from (at the very end of the screen capture)

Thanks in advance

You take the ln (natural logarithms) of both sides of the inequality and it will give you that result!

Thanks for your answer
But why is ln 0.5 resulting in ln 2
I don’t get where the 2 is coming from, ln on both sides I’m fine with

ln0.5 = -ln2, there is a sign change during the simplifications!

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Got it, thank you very much :smile:
Great, that one can ask questions and gets a result that fast

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