Answer:
1:
![(6)/(14)](https://img.qammunity.org/2021/formulas/mathematics/high-school/ljpnxkctrhsqk7c54mcdajfb6d425nsdha.png)
2:
![(1)/(2)](https://img.qammunity.org/2021/formulas/physics/middle-school/ukxexrkoplrwscaxd96qbbkphc5fo6w2ur.png)
Explanation:
1: the number of yellow marbles is 6
the number of marbles in the bag is 14
the probability of yellow marbles out of the bag is
number of yellow marbles over number of marbles in the bag
2: there are only two sides
one head and one tail
head over tail is