Basic Concepts of Probability
1.
3.
5.
7.
9.
e. and are not mutually exclusive because is the nonzero number and are mutually exclusive because .
11.
a. "four or less"
b. "an odd number"
c. "no heads" or "all tails"
d. "a freshman"
13.
a. "All the children are boys".
b. "At least two of the children are girls" or "There are two or three girls".
c. "At least one child is a boy".
d. "There are either no girls, exactly one girl, or three girls".
e. "The first born is a boy".
15. 0.47
17.
19.
21.