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In the python code, what should be placed where it says #Edit here for expectation_val?

Problem 1 The purpose of this problem is to write python code so that given a PMF you calculate things like ELX1 (which is really just a function of the PMF) and similarly varlX] (which also only operates on the PMF). 1.A Given a PMF use the same data structure from HW2 to write code to calculate expectation. Remember the formula is EX] Note that we only need to sum over k in the support, namely k values for which Px(k) 0. For example, imagine if X takes values 2 or 3 with probabilities 0.4 and 0.6. Then see the below shell. another thing to do: get them to appreciate calculating the mean notice that for large number of samples, they are the same