In this task, you need to provide the correct option for a given problem on probability from the provided options.
--------
Question: Problem: a father purchased dress for his 3 daughters . the dresses are of same color but diff size and they are kept in dark room . what is probability that all the 3 will not choose their own dress ? 
Options: a ) 22 , b ) 87 , c ) 29 , d ) 26 , e ) 191

Answer: b


Question: Problem: the maitre ' d at an expensive manhattan restaurant has noticed that 60 % of the couples order dessert and coffee . however , 20 % of the couples who order dessert do n ' t order coffee . what is the probability q that the next couple the maitre ' d seats will not order dessert ? 
Options: a ) 20 % , b ) 25 % , c ) 40 % , d ) 60 % , e ) 75 %

Answer: b


Question: Problem: a certain junior class has 1000 students and a certain senior class has 600 students . among these students , there are 60 siblings pairs each consisting of 1 junior and 1 senior . if 1 student is to be selected at random from each class , what is the probability that the 2 students selected will be a sibling pair ? 
Options: a ) 3 / 40000 , b ) 1 / 1000 , c ) 9 / 2000 , d ) 1 / 60 , e ) 1 / 15

Answer:
b


