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Basics: Averages Video Lecture | Crash Course for CAT

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FAQs on Basics: Averages Video Lecture - Crash Course for CAT

1. What is the formula to calculate the average of a given set of numbers?
Ans. The formula to calculate the average of a set of numbers is to sum all the numbers and then divide by the total count of numbers in the set.
2. How is the concept of weighted average different from a regular average?
Ans. Weighted average takes into account the importance of each number in the set by assigning weights to them, while a regular average treats all numbers equally.
3. Can the average of a set of numbers be higher than all the individual numbers in the set?
Ans. No, the average of a set of numbers cannot be higher than all the individual numbers in the set since it is the sum of all numbers divided by the count of numbers.
4. How can outliers affect the average of a data set?
Ans. Outliers, which are extreme values in a data set, can skew the average either higher or lower depending on their value, leading to a potentially inaccurate representation of the data.
5. In what scenarios is it more appropriate to use the median instead of the average to represent a set of numbers?
Ans. It is more appropriate to use the median instead of the average when there are outliers present in the data set, as the median is less affected by extreme values and provides a more robust measure of central tendency.
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