What is the expected value of the distribution? The owner of a local movie theater keeps track of the
number of tickets sold in each purchase and makes a
probability distribution based on these records. Let X
represent the number of tickets bought in one
purchase. The distribution for X is given in the table.
O 2
O 2.1
O 2.5
O 3
1
2
3
4
5
Number of
Tickets
Probability
0.29
0.44
0.19
0.06
0.02