Expected value of estimated probability distribution

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A survey conducted by a song rating service finds that the percentages of listeners familiar with "Poker Face" by Lady Gaga who would give the song ratings of 5, 4, 3, 2, and 1 are, respectively, 47 percent, 22 percent, 21 percent, 5 percent, and 5 percent. Assign the numerical values 1, 2, 3, 4, and 5 to the (qualitative) ratings 1, 2, 3, 4, and 5 and find an estimate of the probability distribution of x = this song's rating by a randomly selected listener who is familiar with the song.

Find the expected value of the estimated probability distribution. (Round your answer to 2 decimal places.)

Reference no: EM132464554

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