A die is rolled 3 times, and success is rolling a 4.

(a) Construct the binomial distribution that describes this experiment, with x indicating the number of successes.

x Pr(x)

——————–

0 ____

1 ____

2 ____

3 ____

(b) Find the mean of this distribution.

μ =

(c) Find the standard deviation of this distribution. (Round your answer to three decimal places.)

σ =