Find the median of the following dataset (quiz scores): 7, 3, 9, 12, 5, 8, 11, 15.

Type: MCQ • Marks: 1

A. 11.0

B. 9.5

C. 7.0

D. 8.5

Explanation

Arranging in ascending order: [3, 5, 7, 8, 9, 11, 12, 15]. Since n = 8 (even), Median is average of 4-th (8) and 5-th (9) values = (8 + 9) / 2 = 8.5.

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Class 7th Ganita Prakash 2

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