Final answer:
To find the 20th percentile of Mrs. Starnes' Sudoku times for easy puzzles, arrange the times in ascending order and then calculate the position of the value that corresponds to the 20th percentile.
Step-by-step explanation:
The 20th percentile represents the value below which 20% of the dataset falls. In this case, it refers to the Sudoku times for easy puzzles. To find the 20th percentile, you need to arrange the Sudoku times in ascending order and then calculate the position of the value that corresponds to the 20th percentile.
- Arrange the Sudoku times in ascending order.
- Calculate the position of the value that corresponds to the 20th percentile, which is 0.2 times the total number of Sudoku times.
- If the position is an integer, the 20th percentile is the value at that position.
- If the position is not an integer, round up to the nearest whole number and find the value at that position.
For example, if there are 100 Sudoku times, the position of the 20th percentile would be 0.2 * 100 = 20. So, you would look for the value at the 20th position in the arranged list of Sudoku times.