Q15 of 40 Page 1

A number is chosen at random from the numbers -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5. Then the probability that square of this number is less than or equal to 1 is _____________

3/11


Let, S be the sample space.


∴ S = {-5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5}


∴ n(S) = 11


And let, A be an event of getting a number whose square is less than or equal to 1.


∴ A = {-1, 0, 1}


∴ n(A) = 3



Hence, the probability of getting a number whose square is less than or equal to 1 is 3/11.


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