Question

plz answer these all as fast as you can.

Answer 1

4. there are six cards marked 1 to 6 number on them
(a) 
the total no.(total number of possible outcomes) are=6
the no of even numbers (favourable outcomes) in 1 to 6= 3(2,4,6)
we know, probability =Probability of an Event =  Number of Favorable Outcomes/Total Number of Possible Outcomes
now,
probability=3/6=1/2