Based on past experience, an architect has determined the probability mass function for the number of times a drawing must be examined by a client before it is accepted. Let the random variable X= the...

Extracted text: Based on past experience, an architect has determined the probability mass function for the number of times a drawing must be examined by a client before it is accepted. Let the random variable X= the number of times a drawing must be examined by a client before it is accepted. The distribution of X is shown below. Value of X 2 3 4 5 Probability 0.1 0.2 0.3 0.2 0.2 What is the average number of times a drawing must be examined by a client before it is accepted? (Do not round).