Lưu ý: Bản dịch của mục này hiện đang được kiểm tra chất lượng, vì vậy một số nội dung tạm thời chỉ hiển thị bằng tiếng Anh.
Mục từ này chưa được dịch sang ngôn ngữ của bạn, vì vậy nội dung gốc được hiển thị bên dưới.
weighted average
This term is primarily used in statistics, finance, and academia to describe a mean that accounts for the relative importance of different data points. It differs from a simple arithmetic mean by assigning a specific weight to each value, ensuring that more significant factors have a greater impact on the final outcome.
In educational contexts, it is frequently used for grading systems where a final exam might be worth more than a quiz. In finance, it is used to calculate the average cost of a portfolio or the average price of shares bought at different times.
Ý nghĩa
Ví dụ
The final grade is a weighted average of the midterm, final, and homework assignments.
I need to calculate the weighted average of these stock returns to see the portfolio performance.
Why is the weighted average so much higher than the simple mean?
The company uses a weighted average to determine the cost of inventory.
I wonder if a weighted average would be more accurate for this dataset.
The weighted average price per share was five dollars and twenty cents.
Please use a weighted average to account for the different sample sizes in each group.