decile

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Word: Decile

Part of Speech: Noun (used in statistics)

Definition: A decile is one of nine points that divides a set of data into ten equal parts, where each part contains 10% of the total data. In other words, if you have a list of scores or values and you arrange them from lowest to highest, a decile helps you understand how the scores are spread out by showing you where certain percentages fall.

Usage Instructions:

• Deciles are commonly used in statistics to analyze data distributions.
• You can find deciles in studies, research, and reports when evaluating performance or scores.

Example:

Imagine you have test scores for a class of 100 students. If you arrange the scores from the lowest to the highest, the first decile would represent the score below which 10% of the students fall. If the first decile score is 65, it means that 10% of the students scored 65 or lower.

Advanced Usage:

In more advanced statistics, deciles can help identify trends or outliers within a dataset. For instance, if you are studying income levels, you might use deciles to see how many people fall into each income bracket, helping to understand economic divides.

Word Variants:

• Decile (noun): The main form of the word.
• Deciles (plural): Refers to multiple points dividing the data.

Different Meanings:

In general usage outside of statistics, "decile" is not commonly used in other contexts. It is primarily a statistical term.

Synonyms:

• Percentile (though a percentile divides data into 100 equal parts, not 10)
• Quantile (a more general term for dividing data into equal parts)

Idioms and Phrasal Verbs:

There are no specific idioms or phrasal verbs associated with "decile" since it is a technical term used mainly in statistics.

Summary:

In summary, a decile is a useful concept in statistics that helps to break down data into manageable parts, allowing for better analysis of trends and distributions.

Academic

Noun

1. (statistics) any of nine points that divided a distribution of ranked scores into equal intervals where each interval contains one-tenth of the scores