Compute the average of these eight scores: 124, 856, 331, 227, 963, 338, 259, 662.

Difficulty: Easy

Correct Answer: 470

Explanation:


Introduction / Context:
Average equals total divided by count. With eight data points, careful addition is essential.

Given Data / Assumptions:

  • Scores: 124, 856, 331, 227, 963, 338, 259, 662


Concept / Approach:
Sum all values first, then divide by 8.

Step-by-Step Solution:

124 + 856 = 980980 + 331 = 13111311 + 227 = 15381538 + 963 = 25012501 + 338 = 28392839 + 259 = 30983098 + 662 = 3760Average = 3760 / 8 = 470


Verification / Alternative check:
Group sums for confirmation, for example (124 + 856) = 980 and (331 + 227) = 558 etc., leading to 3760 total.

Why Other Options Are Wrong:

  • 350, 570, 660: Do not equal the exact computed average.


Common Pitfalls:
Misadding or skipping a term which distorts the final mean.

Final Answer:

470

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