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