The ratio 9:7 gives you following statement:
- Carl will win in 9 cases from 9+7=16;
- Carl will lose in 7 cases from 16.
Then the probability that Carl will lose is
[tex]Pr(\text{Carl will lose})=\dfrac{7}{16}.[/tex]
Answer: [tex]Pr(\text{Carl will lose})=\dfrac{7}{16}.[/tex]
