25. The number of tickets purchased by a customer for a musical performance at a certain concert hall can be considered a random variable. The table below shows the relative frequency distribution for the number of tickets purchased by a customer. Number of tickets purchased 1 2 3 4 5 Relative frequency 0.20 0.45 0.10 0.20 0.05 Suppose each ticket for a certain musical performance cost $12. Based on the distribution shown, what is the mean cost per customer for the performance? (A) $2.45 (B) $2.75 (C) $24.50 (D) $29.40 (E) $36.00

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