An average combines values; a midpoint marks the exact center of a segment.
â Must-know
đ Formula - The average of two numbers is .
Further detail
đ Formula - A weighted average is the sum of each value multiplied by its weight: .
1. What does the midpoint of a line segment represent?
2. Two values contribute to a mean, but the first value is assigned greater importance than the second. Which kind of mean is being used?
3. A student finds the average of 72 and 88. Which calculation gives the correct average?
What is the midpoint of a line segment?
Its exact middle.
How does a weighted average account for values?
It assigns different levels of importance, or weights, to the values.
What is the formula for the average of two numbers?
How is the weighted average of values and calculated using weights and ?
What is the weighted average of a daily grade of 80 weighted at 80% and an exam grade of 90 weighted at 20%?
82
Toward which value does a weighted average lie proportionally closer?
The value with the greater weight.
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