probailty question (ANOTHER)3.Suppose that a discrete random variable X assumes values from the set SX = {0,1,2,…,8}.Suppose that the pmf of X has the form,px(k) = a*k for k=0,1,2,...,8and zero otherwise.(a) Find the value of a .(b) Find the probab
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![probailty question (ANOTHER)3.Suppose that a discrete random variable X assumes values from the set SX = {0,1,2,…,8}.Suppose that the pmf of X has the form,px(k) = a*k for k=0,1,2,...,8and zero otherwise.(a) Find the value of a .(b) Find the probab](/uploads/image/z/10864286-62-6.jpg?t=probailty+question+%28ANOTHER%293.Suppose+that+a+discrete+random+variable+X+assumes+values+from+the+set+SX+%3D+%7B0%2C1%2C2%2C%E2%80%A6%2C8%7D.Suppose+that+the+pmf+of+X+has+the+form%2Cpx%28k%29+%3D+a%2Ak+for+k%3D0%2C1%2C2%2C...%2C8and+zero+otherwise.%28a%29+Find+the+value+of+a+.%28b%29+Find+the+probab)
probailty question (ANOTHER)3.Suppose that a discrete random variable X assumes values from the set SX = {0,1,2,…,8}.Suppose that the pmf of X has the form,px(k) = a*k for k=0,1,2,...,8and zero otherwise.(a) Find the value of a .(b) Find the probab
probailty question (ANOTHER)
3.Suppose that a discrete random variable X assumes values from the set SX = {0,1,2,…,8}.
Suppose that the pmf of X has the form,
px(k) = a*k for k=0,1,2,...,8
and zero otherwise.
(a) Find the value of a .
(b) Find the probability that {X ≤ 4}.
probailty question (ANOTHER)3.Suppose that a discrete random variable X assumes values from the set SX = {0,1,2,…,8}.Suppose that the pmf of X has the form,px(k) = a*k for k=0,1,2,...,8and zero otherwise.(a) Find the value of a .(b) Find the probab
(a):∑px(k) = 1,即px(0)+px(1)+...+px(8) = 1,解得 a = 1/36
(b):