Answer to Question #331271 in Statistics and Probability for Jam

Question

2. A random variable X has this probability distribution:

x 0 1 2 3 4 5

P(X=x) 0.1 ? 0.05 0.1 0.03 0.3

Find f(2)

Answer 1

$f(2)=P(X≤2)=1-P(X>2)=1-P(X=3)-P(X=4)-P(X=5)=1-0.1-0.03-0.3=0.57$