Question

Write the values of ‘a’ for which the following distribution of probabilities becomes a probability distribution:

X = xi:	-2	-1	0	1
P(X = xi):	\(\frac{1-a}{4}\)	\(\frac{1+2a}{4}\)	\(\frac{1-2a}{4}\)	\(\frac{1+a}{4}\)

Answer 1

The probability distribution of X is:

We Know that