Q. 104.8( 6 Votes )

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?

Answer :

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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