Respuesta :
Answer:
See below
Step-by-step explanation:
a) 7/10
b) 7/10 x 3/9 = 21/90 = 7/30
c) Also 7/30
Answer:
a) 0.7
b) 0.2333
c) 0.4666
Step-by-step explanation:
a) 7 out of 10 marbles in the bag are green, so when choosing out of 10 marbles, there is a 7/10 chance that it will be green.
b) Use the probability from part a and multiply it by the probability of choosing a white marble out of 9 (because one of the marbles has been removed). This can be written as 7/10 x 3/9, which is 0.2333.
c) Use the probability from part b and add it to the probability of choosing a white marble first and then a green marble. This can be written as (7/10 x 3/9) + (3/10 x 7/9), which is 0.4666.
