Question -
Answer -
For each event to be avalid assignment of probability.
The probability ofeach event in sample space should be less than 1 and the sum of probability ofall the events should be exactly equal to 1.
(i) It is valid aseach P (wi) (for i=1 to 7) lies between 0 to 1 and sum of P (w1)=1
(ii) It is valid aseach P (wi) (for i=1 to 7) lies between 0 to 1 and sum of P (w1)=1
(iii) It is not validas sum of P (wi) = 2.8 which is greater than 1
(iv) it is not validas P (w7) = 15/14 which is greater than 1