A random variable X has the probability distribution:
Then the value P(X ≥ 5) is:
0.2
0.23
0.13
0.45
P(X ≥ 5) = P(5) + P(6) + P(7) = 0.01 + 0.02 + 0.17 = 0.2
The the value of P(X > 4) is:
If the mean of the following distribution is 2.6, then the value of y is