Question

A game of chance is played on a wheel that contains 34 numbers (16 are red, 16 are black, and 2 are green). When the wheel is spun, the ball is equally likely to land on any of the 34 numbers. Suppose that you bet $7 on red. If the ball lands on a red number, you win $7; otherwise you lose your $7. Let X be the amount you win on your $7 bet. Then X is the random variable whose probability distribution is as follows. a. Find the expected value of the random variable X. The expected value is (Round to three decimal places as needed.) X P(X = x) 7 0.471 -7 0.529 Use this to complete parts (a) through (d) to the right.

          A game of chance is played on a wheel that contains
34 numbers (16 are red, 16 are black, and 2 are green).
When the wheel is spun, the ball is equally likely to land
on any of the 34 numbers. Suppose that you bet $7 on
red. If the ball lands on a red number, you win $7;
otherwise you lose your $7. Let X be the amount you
win on your $7 bet. Then X is the random variable
whose probability distribution is as follows.
a. Find the expected value of the random
variable X.
The expected value is
(Round to three decimal places as needed.)
X
P(X = x)
7
0.471
-7
0.529
Use this to complete parts (a) through (d) to the right.

A game of chance is played on a wheel that contains
34 numbers (16 are red, 16 are black, and 2 are green).
When the wheel is spun, the ball is equally likely to land
on any of the 34 numbers. Suppose that you bet 7 on
red. If the ball lands on a red number, you win7;
otherwise you lose your 7. Let X be the amount you
win on your7 bet. Then X is the random variable
whose probability distribution is as follows.
a. Find the expected value of the random
variable X.
The expected value is
(Round to three decimal places as needed.)
X
P(X = x)
7
0.471
-7
0.529
Use this to complete parts (a) through (d) to the right.

Added by Belinda B.

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