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. Number of Tickets 1 2 3 4 5 Probability 0 29 0.44 0.19 0.06 0.02 Which is the correct interpretation of the standard deviation? O The number of tickets purchased typically varies from the expected value by 0.95 tickets. O If many, many purchases are made, the expected number of tickets purchased is 2.1. O The mean number of tickets purchased typically varies from the expected value by 0.95 tickets. O The mean number of tickets purchased typically varies from the expected value by 0.89 tickets.

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