Step 1
Given;
Step 2
Probability of an event is given as;
[tex]P(event)=\frac{number\text{ required events}}{Total\text{ number of events}}[/tex][tex]Number\text{ of required events=number of blue marbles=5 blue marbles}[/tex][tex]Total\text{ number of events=Total number of marbles=12 marbles}[/tex]
Thus, the probability of that the marble is blue is;
[tex]P(blue)=\frac{5}{12}[/tex]
Answer;
[tex]P(blue)=\frac{5}{12}[/tex]
