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skyhare465Lv1
9 Sep 2020
3. A fair die is tossed independently and repeatedly. Let X be the number of tosses needed to turn up the first 3. (a) Find P(X = 1), P(X = 2) and P(X = 3). (b) Find the probability mass function of X. (c) Show that the probability mass function you found in part (b) is a valid probability mass function
3. A fair die is tossed independently and repeatedly. Let X be the number of tosses needed to turn up the first 3. (a) Find P(X = 1), P(X = 2) and P(X = 3). (b) Find the probability mass function of X. (c) Show that the probability mass function you found in part (b) is a valid probability mass function
srikarmargamLv2
28 Mar 2023
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