วิธีการคำนวณ Class Average

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A class average calculator computes mean, median, range, and passing rate for a set of student scores, helping teachers identify class-wide trends and individual outliers.

สูตร

Class average = Sum of scores / Number of students | Weighted average = Σ(score × weight) / Σ(weight)

คำแนะนำทีละขั้นตอน

1Mean = Sum of scores / Count
2Median = Middle value when sorted (average 2 middle for even n)
3Passing rate = Count(score ≥ threshold) / Total × 100
4Range = Max − Min

ตัวอย่างที่มีคำตอบ

อินพุต

Scores: 55, 68, 72, 78, 84, 88, 92, 95

ผลลัพธ์

Mean = 79; Median = 81; Range = 40; 7/8 passing (87.5%)

คำถามที่พบบ่อย

What is Class Average?

A class average calculator computes mean, median, range, and passing rate for a set of student scores, helping teachers identify class-wide trends and individual outliers. Use this calculator for accurate, instant results.

How accurate is the Class Average calculator?

The calculator uses the standard published formula for class average. Results are accurate to the precision of the inputs you provide. For financial, medical, or legal decisions, always verify with a qualified professional.

What units does the Class Average calculator use?

This calculator works with inches. You can enter values in the units shown — the calculator handles all conversions internally.

What formula does the Class Average calculator use?

The core formula is: Mean = Sum of scores / Count. Each step in the calculation is shown so you can verify the result manually.

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