For the following probability distribution:
E(X) is equal to :
Given, Probability distribution table is given,
Now,
E(X)=[(-4)×(0.1)+(-3)×(0.2)+(-2)×(0.3)+(-1)×(0.2)+(0×0.2)]
E(X)=[-0.4-0.6-0.6-0.2+0]
E(X)=[-1.8]
Hence, E(X) =-1.8
88
For the following probability distribution:
E(X) is equal to :
Given, Probability distribution table is given,
Now,
E(X)=[(-4)×(0.1)+(-3)×(0.2)+(-2)×(0.3)+(-1)×(0.2)+(0×0.2)]
E(X)=[-0.4-0.6-0.6-0.2+0]
E(X)=[-1.8]
Hence, E(X) =-1.8