Mark DeRosa, a Major League Baseball player, was a second baseman for the Chicago Cubs in 2007. Consider the experiment of DeRosa making a batting appearance. There are five experimental outcomes: He is out, he advances to first base, he hits a double, he hits a triple, or he hits a home run. Define the random variable x as the number of bases that DeRosa advances on the baseball diamond from his batting appearance. Thus, the values of x are:

85.560%

step-by-step explanation:

conditional probability is defined as:

p(a|b) = p(a∩b) / p(b)

in other words, the probability that a occurs, given that b has occurred = the probability that both a and b occur / the probability that b occurs.

in this example:

p(turns 64 | turns 44) = p(turns 64 & turns 44) / p(turns 44).

if someone turns 64, they must have already turned 44, so:

p(turns 64 | turns 44) = p(turns 64) / p(turns 44)

on page 42, we see that of the original 100,000, 94944 turn 44, and 81234 turn 64.   therefore:

p(turns 64 | turns 44) = 81234 / 94944

p(turns 64 | turns 44) = 0.85560

210/22 = 9.55

since he can't take part of a person to the game the answer is 9 people

hope this !