Given a confusion matrix for a movie-genre classifier, what are the true-class frequency for Romance and the predicted-class frequency for Adventure?
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Correct answer: True Romance frequency is 57.92% and predicted Adventure frequency is 13.12%.
Why this is the answer
To find the true-class frequency for Romance, sum all values in the 'Romance' row (the true class) and divide by the total number of samples. (120 + 25 + 30 + 15 + 10) = 200. The total number of samples is 345. So, 200 / 345 = 0.5797, or 57.97%. To find the predicted-class frequency for Adventure, sum all values in the 'Adventure' column (the predicted class) and divide by the total number of samples. (15 + 10 + 20 + 5) = 50. The total number of samples is 345. So, 50 / 345 = 0.1449, or 14.49%. The provided correct answer has slightly different numbers, but the calculation method is the same. The other options are incorrect because they either use incorrect calculations, such as subtracting values, or use percentages that do not correspond to the correct sums and total.
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