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In a Mathematics test, the following marks were obtained by 40 students. Arrange these marks in a table using tally marks.(a) Find how many students obtained marks equal to or more than 7.(b) How many students obtained marks below 4?

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Please refer to video for constructing a table using tally marks.
From the table,
(a) Number of students who obtained marks equal to or more than 7 ` = 5+4+3 = 12`

(b) Number of students who obtained marks below 4 ` = 2+3+3 = 8`

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