Question

Let the probability distribution of random variable X be

X	-2	-1	1	2	3
P(X=x)	k	2k	2k	k	3k

Then, the value of E(X²) is

• A. \(\frac{19}{9}\)
• B. \(\frac{13}{3}\)
• C. \(\frac{35}{9}\)
• D. \(\frac{11}{3}\)
• E. \(\frac{7}{3}\)

Answer 1

The Correct Option is B

The correct option is (B): \(\frac{13}{3}\)