A botany student is asked to match the popular names of three house plants with their obscure

Question:

A botany student is asked to match the popular names of three house plants with their obscure botanical names. Suppose the student never heard of these names and is trying to match by sheer guess. Let X denote the number of correct matches.
(a) Obtain the probability of X.
(b) What is the expected number of matches? Distribution
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