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The blood groups of 25 students are recorded as under:

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The blood groups of 25 students are recorded as under: A, B, O, A, AB, O, A, O, B, A, O, B, A, AB, AB, A, A, B, B, O, B, AB, O, A, B. Arrange the information in a table using tally marks.

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Tally marks is

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The blood groups of 25 students are recorded as under:
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