Problem
Comments or Modications
3.1: 2
Display a tree diagram to justify your answer. Note that order is
important. One of the outcomes, for example, is wbb.
No explanation is needed.
Use the counting
Note that this problem set grade will not be dropped for any reason.
Problem
8.5: 20a
8.5: 20b
9.1: 4a
9.1: 18a
9.1: 18b
9.2: 14a
9.3: 6abc
10.1: 10
Comments or Modications
Counts double
You do not ne
Compute probabilities using the table, not built-in functions on a calculator. Follow
the procedures used in class that were presented as model solutions.
Problem
5.1:
5.1:
5.2:
5.2:
5.2:
5.3:
5.3:
5.
Problem
4.2:
4.2:
4.2:
4.2:
4.3:
2
4
14
22
2
4.3: 4
4.3: 8
Comments or Modications
Imitate the procedure of class with a table of three columns.
Be sure to explain your reasoning in parts (a) and (b).
Problem
1.1:
2.2:
2.3:
2.3:
2.4:
2.4:
2.5:
3.2:
3.3:
3.3:
12
16
12
18
24
26
24
20
20
24
Comments or Modications
Denote by B1 the event that bulb 1 burns all night and by B2 the
event that bulb 2 burns
Problem
Comments or Modications
3.2: 8
Show your work in each part by writing something like
P (E ) = P (e1 ) + P (e2 ) + P (e3 ) = 0.1 + 0.3 = 0.5
3.2:
3.2:
3.2:
3.3:
3.3:
3.3:
10ab
10cd
16
2
4
8
3.3
Problem
Comments or Modications
2.2: 20
2.2: 22b
You do not need to copy the table.
Ignore the data given in the problem and instead use the data
described by the ordered stem and leaf diagram in Figu
Note that this problem set grade will not be dropped for any reason.
Problem
10.2: 16
10.2: 20
10.2: 26
10.4: 16
10.4: 20
10.5: 16a
10.5: 16b
10.5: 20
Comments or Modications
You may merely show your