In this task, you need to provide the correct option for a given problem on probability from the provided options.

[EX Q]: Problem: a meeting has to be conducted with 5 managers . find the number of ways in which the managers may be selected from among 8 managers , if there are 2 managers who refuse to attend the meeting together . 
Options: a ) 36 , b ) 40 , c ) 45 , d ) 51 , e ) 56
[EX A]: a

[EX Q]: Problem: what is the probability of getting only 1 head in a single throw of four fair coins ? 
Options: a ) 1 / 2 , b ) 3 / 8 , c ) 1 / 4 , d ) 1 / 5 , e ) 5 / 8
[EX A]: c

[EX Q]: Problem: a , b , c , d , e , f , g , h sitting in a row what is the probability that a , b , c sitting together ? 
Options: a ) 3 / 14 , b ) 5 / 28 , c ) 3 / 28 , d ) 1 / 7 , e ) 9 / 28
[EX A]:
c

