To find the percentile rank of 31, we first need to order the scores from least to greatest. This gives us the following: 21, 24, 25, 25, 25, 28, 30, 31, 32, 33, 33, 37, 37, 39, 40, 42, 42, 43, 45, 46
The percentile rank of a score is the percentage of scores that are equal to or less than that score. In this case, there are 20 contestants, so the percentile rank of 31 is the number of contestants who scored 31 or less, divided by 20. There are 5 contestants who scored 31 or less, so the percentile rank of 31 is 5/20 = 25%.
This means that 25% of the contestants scored 31 or less. The remaining 75% of the contestants scored higher than 31.
Interpreting the percentile rank of 31, we can say that a score of 31 is in the 25th percentile. This means that 25% of the contestants scored 31 or less, and 75% of the contestants scored higher than 31.
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Answer:
To find the percentile rank of 31, we first need to order the scores from least to greatest. This gives us the following:
21, 24, 25, 25, 25, 28, 30, 31, 32, 33, 33, 37, 37, 39, 40, 42, 42, 43, 45, 46
The percentile rank of a score is the percentage of scores that are equal to or less than that score. In this case, there are 20 contestants, so the percentile rank of 31 is the number of contestants who scored 31 or less, divided by 20. There are 5 contestants who scored 31 or less, so the percentile rank of 31 is 5/20 = 25%.
This means that 25% of the contestants scored 31 or less. The remaining 75% of the contestants scored higher than 31.
Interpreting the percentile rank of 31, we can say that a score of 31 is in the 25th percentile. This means that 25% of the contestants scored 31 or less, and 75% of the contestants scored higher than 31.
Step-by-step explanation: