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No working out needed, thankyou! Here is a histogram of the distribution of grades on a quiz. 5 - count - 40 50 60 70

No working out needed, thankyou!

Here is a histogram of the distribution of grades on a quiz. 5 - count - 40 50 60 70 80 90 100 grades What proportion of the students scored an 80 or above on the quiz? Please answer as a decimal

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