For each of the following, find x, 2x, and x Then interpret in words the meaning of

Question:

For each of the following, find μx, σ2x, and σx Then interpret in words the meaning of μx and employ Chebyshev's rule to find intervals that contain at least 3/4 and 8/9 of the observed values of x.
a. x = the number of patrons who prefer diet cola A as defined in Exercise 5.10a.
b. x = the number of girls born to the couple as defined in Exercise 5.10b.
c. x = the number of people who will purchase a car as defined in Exercise 5.10c.