مقاييس النزعة المركزية: المتوسط الحسابى

Two teachers compare their students' test scores to determine who has the higher average. The video explains how to calculate the arithmetic mean by summing values and dividing by the number of values. Teacher One's class has an average score of 78.5, while Teacher Two's class has an average score of 79.7, making Teacher Two the winner.

What is the first step in calculating the average of a set of numbers?

• Subtract the smallest value from the largest

• Multiply all the values together

• Divide the total by the number of values

• Add all the values together

How many students are in Teacher One's class?

• Eight

• Seven

• Six

• Five

What is the average score for Teacher One's class?

• 78.5

• 79.5

• 80.5

• 81.5

How many students are in Teacher Two's class?

• Seven

• Nine

• Six

• Eight

Which teacher's class had the higher average score?

• Teacher One

• Teacher Two

• Both had the same average

• Neither, both were below average