a. How many possible pairs of jeans are there if each pair has one style and one color?
b. Suppose you have one pair of jeans of each possible style and color in the table. What is the probability of choosing a pair of black jeans at random?
regular light blue
loose fit indigo
boot cut washed
slim fit black
A. 30 pairs; 1/4
B. 9 pairs; 1/20
C. 20 pairs; 1/5
D. 4 pairs; 1/5
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