Answer:
The probability of Jamie picking a white marble and then a blue marble is 7/30 or 23%
Step-by-step explanation:
It is given that there are 3 white marbles and 7 blue marbles in a bag.
Total = 7 + 3 = 10 marbles.
When Jamie picks first marble there are 3 white marbles out of 10 marbles in the bag so the probability of Jamie picking a white marble would be = 3/10
Then he picks second marble without replacing the first marble, there are only 9 marbles left, so the probability of picking blue marble would be = 7/9
Therefore, [tex]\frac{3}{10}[/tex] × [tex]\frac{7}{9}[/tex]
= [tex]\frac{7}{30}[/tex] or 23%
The probability of Jamie picking a white marble and then a blue marble is 7/30 or 23%
