2 votes 2 votes Consider a dice with the property that the probability of a face with $n$ dots showing up is proportional to $n$. The probability of the face with three dots showing up is ________. Probability & Statistics gate2014-ee-2 probability-and-statistics probability + – makhdoom ghaya asked Feb 11, 2017 retagged Mar 8, 2021 by Lakshman Bhaiya makhdoom ghaya 9.4k points answer comment Share See all 0 reply Please log in or register to add a comment.
1 votes 1 votes X 1 2 3 4 5 6 P(X) k 2k 3k 4k 5k 6k where, k is a proportional constant. ∑P(X)=1 k+2k+3k+4k+5k+6k = 1 k= 1/21 P(3 dots) = 3* 1/21 =3/21 (Answer) Avik10 answered Nov 4, 2017 Avik10 160 points comment Share ask related question See all 2 Comments See all 2 2 Comments reply Reenakhanna 100 points commented Oct 26, 2018 reply Share Why we are equating it to 1 1 votes 1 votes hina firdaus 100 points commented Feb 15, 2019 reply Share Because summation of any random event is always equal to 1 in probability Probability of having an event+ probability of not having an event =1 p+ ~p = 1 0 votes 0 votes Please log in or register to add a comment.