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You are asked to match three songs with the performers who made those songs famous. If you guess, the probability distribution for the number of correct matches is:
Probability 0.448 0.316 0.023 0.213
Number correct 0 1 2 3
What is the probability you will get:
a. Exactly one correct? (Round the final answer to 3 decimal places.)
b. At least one correct? (Round the final answer to 3 decimal places.)
c. Exactly two correct? (Round the final answer to 3 decimal places.)
d. Compute the mean, variance, and standard deviation of this distribution. (Round the final answers to 3 decimal places.)
Mean µ =
Variance σ2 =
Standard deviation σ =
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The field of statistics can be roughly subdivided into two areas: descriptive statistics and probability.
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