A movie enthusiast is going to select 1 of 4 movies (labeled W, X, Y, and Z) using a random method where all the movies are equally likely to be chosen. Which of the following is the probability distribution for the movie selection?
Answer
A
Table with 4 columns and 2 rows.Row 1: Column 1, 'W'; Column 2, 'X'; Column 3, 'Y'; Column 4, 'Z' Row 2: Column 1, '0 point 4 0'; Column 2, '0 point 4 0'; Column 3, '0 point 4 0'; Column 4, '0 point 4 0'
B
Table with 4 columns and 2 rows.Row 1: Column 1, 'W'; Column 2, 'X'; Column 3, 'Y'; Column 4, 'Z' Row 2: Column 1, '0 point 1 0'; Column 2, '0 point 2 0'; Column 3, '0 point 3 0'; Column 4, '0 point 4 0'
C
Table with 4 columns and 2 rows.Row 1: Column 1, 'W'; Column 2, 'X'; Column 3, 'Y'; Column 4, 'Z' Row 2: Column 1, '0 point 2 5'; Column 2, '0 point 2 5'; Column 3, '0 point 2 5'; Column 4, '0 point 2 5'
D
Table with 4 columns and 2 rows.Row 1: Column 1, 'W'; Column 2, 'X'; Column 3, 'Y'; Column 4, 'Z' Row 2: Column 1, '0 point 5 0'; Column 2, '0 point 5 0'; Column 3, '0 point 5 0'; Column 4, 'negative 0 point 5 0'
Explanation
Because all 4 movies are equally likely, each movie has probability 1 ÷ 4 = 0.25. Choice C assigns 0.25 to W, X, Y, and Z, and the probabilities add up to 1.
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