How we are taking e(x)=1/p

#1

how we are taking e(x)=1/p
and what does expectation means

#2

Hey @uditkumar652 Expectation is the weighted average value of a random variable.
Lets say you want to find out the expected value of the die’s outcome.
Then it can be calculated as 1*(1/6) + 2*(1/6) + 3*(1/6) +4*(1/6) +5*(1/6) +6*(1/6)
For more on expectation ,check out this https://www.rapidtables.com/math/probability/Expectation.html

And as for why e(x)=1/p see this https://www.cut-the-knot.org/Probability/LengthToFirstSuccess.shtml

#3

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