- A30
- B4
- C21
- D25
Step-by-Step Solution
Counts: 21 appears 4 times, 25 and 30 twice, 28 once. The mode is 21. (4 is how often it appears.)
Answer: C) 21
Find the mode of the data 21, 25, 21, 30, 25, 21, 28, 30, 21.
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