The mode is the value that occurs most frequently in a data set. In the set 5, 7, 9, 11, 13, 13, 17, 19, 20, the number 13 appears twice, which is more than any other number, making 13 the mode.
The mode in a set of scores of 5, 7, 9, 11, 13, 13, 17, 19, and 20 is _____?
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Question context
This question is part of 📏 Arithmetic Aptitude within the broader 🧠 Aptitude Mastery subject and appears in the SPSC – Sindh Public Service Commission preparation collection. Reviewing the answer together with nearby questions helps reinforce the underlying concept and identify how it may appear in competitive exams.