People who ate something else than salad = 1/3*T
People who ordered salads without italian dressing = T*2/3*(1 - 1/3) = T*2/3*2/3 = T*4/9
People who did not eat italian dressing in sum = 1/3T + 4/9T = 7/9 T -> Answer E
People who ordered salads without italian dressing = T*2/3*(1 - 1/3) = T*2/3*2/3 = T*4/9
People who did not eat italian dressing in sum = 1/3T + 4/9T = 7/9 T -> Answer E
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