Based on past experience, the manager of the VideoRama Store has compiled the following table, which gives the probabilities that a customer who enters the VideoRama Store will buy 0, 1, 2, 3, or 4 videocassettes. How many videocassettes can a customer entering this store be expected to buy? Give your answer to two decimal places, if necessary. 
E = __________
Definitions:
Cardboard Containers
Packaging materials made from layers of paper pulp pressed together, commonly used for shipping or storing goods.
Statistic
A statistic is a numerical value that describes a characteristic or measure derived from a sample of data.
Supermarket Customers
Individuals who purchase goods and services from a supermarket.
Sample Proportion
The fraction or percentage of the sample that represents a particular attribute or characteristic.
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