The random variable X has the probability distribution table shown below.
x | 2 | 4 | 6 | 8 | 10 |
P(X = x) | 0.2 | 0.2 | a | a | 0.2 |
(a) Assuming P(X
= 6) = P(X = 8), find each of
the missing values.
a =
(b) Calculate P(X ≥ 6)
and P(2 < X <
8).
P(X ≥ 6) |
= |
P(2 < X < 8) |
= |
The random variable X has the probability distribution table shown below. x 2 4 6 8...
The random variable X has the probability distribution table shown below. Calculate the standard deviation of X. Show all work as to how you performed your calculations as if you did not have a calculator. (Rounded to two decimal place [6 points) [Hint: First, find E(X)] * 0136 P(X = x) 0.1 0.2 0.3 0.4
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