Respuesta :
chance of choosing a white marble is 1/57
chance of choosing a yellow one is 14/57
1/57+14/57= chance of choosing white or yellow
1/57+14/57=15/57
the answer is 15/57
chance of choosing a yellow one is 14/57
1/57+14/57= chance of choosing white or yellow
1/57+14/57=15/57
the answer is 15/57
Answer:
15/57
Step-by-step explanation:
Given
Total sample space=57 (as one marble was also added to the bag)
Now,
Let P(A) be the probability of drawing a white marble
Let P(B) be the probability of drawing a yellow marble
So,
P(A)=1/57
P(B)=14/57
As we have to calculate the probability of white or yellow marble
P(A or B)=P(A)+P(B)
=1/57+14/57
=(1+14)/57
=15/57
So the probability of drawing a white or yellow marble is 15/57 ..