How to find the 3rd quartile?
Understand the Problem
The question is asking for the steps to determine the 3rd quartile in a data set, which involves understanding how to organize data and calculate quartiles.
Answer
Calculate the position using Q3 = (n + 1) x 3/4 and determine the value at that position.
To find the 3rd quartile (Q3), calculate the position using the formula Q3 = (n + 1) x 3/4 and then determine the value at that position in the ordered data set.
Answer for screen readers
To find the 3rd quartile (Q3), calculate the position using the formula Q3 = (n + 1) x 3/4 and then determine the value at that position in the ordered data set.
More Information
The third quartile (Q3) is also known as the 75th percentile, which means it divides the lowest 75% of the data from the highest 25%.
Tips
A common mistake is forgetting to arrange the data in ascending order before performing calculations.
Sources
- Quartile Formula - Investopedia - investopedia.com
- Quartile Formula - Cuemath - cuemath.com
- Quartile Formula - Toppr - toppr.com
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