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This frequency table shows the results o...

This frequency table shows the results of a small class quiz . If a student is selected at random, the probability that he or she scored 2, 4, or 5 is
`{:("Marks ", "Frequency "),(" "1," "4),(" "2," "3),(" "3," "2),(" "4," "6),(" "5," "5):}`

A

`(3)/(20)`

B

`(1)/(4)`

C

`(7)/(10)`

D

`(9)/(20)`

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