Answer :
Final answer:
Colin correctly predicted the outcome for 3 out of 8 questions he thought he got wrong, and 42 out of 45 questions he got right, thus his accuracy in predicting his scores was 84%.
Explanation:
To find Colin's percentage accuracy with predicting his scores, you first need to identify the total number of questions he predicted accurately.
He predicted he got 8 questions wrong and was correct on 3 of them (8-5 = 3). As he got 45 questions right in total, it means he accurately predicted 42 questions correctly (45-3 = 42).
So his percentage accuracy is the number of accurately predicted questions divided by the total number of questions.
Therefore, his predictive accuracy percentage is (42/50)*100 = 84%
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Final answer:
Colin had an 84% accuracy in predicting his scores.
Explanation:
To calculate Colin's percentage accuracy in predicting his scores, we first need to determine the number of questions he actually got wrong. Since he identified 8 questions as wrong, but he got 5 of them right, it means he actually got 3 questions wrong. Therefore, he got 45 - 3 = 42 questions right. To find the percentage accuracy, we divide the number of questions he got right by the total number of questions and multiply by 100: (42/50) x 100 = 84% accuracy.
Learn more about Percentage Accuracy here:
https://brainly.com/question/33589240
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