The table given below shows the marks obtained by 30 students in a test.Out of these students, one is chosen at random. What is the probability that his marks lie in the interval 21-30?

Total number of Students: 30

Number of Students having marks in the range 21-30: 6

Probability P() =

1.Let P(S) be probability of selecting a student having marks in the range 21-30

P (S) =

P (S) = = 0.2

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