EASY
Earn 100

A coin is tossed and then a die is thrown. Describe the sample space for this experiment.

Important Questions on Statistics and Probability

HARD
An urn contains marbles of four colours : red, white, blue and green. When four marbles are drawn without replacement, the following events are equally likely:

(i) The selection of four red marbles

(ii) The selection of one white and three red marbles

(iii) The selection of one white, one blue and two red marbles

(iv) The selection of one marble of each colour

The smallest total number of marbles satisfying the given condition is