The probability is defined as .
The number of ways of selecting 2 girls from 12 girls is .The number of ways of selecting 2 student from students is .
The required probability is
Answer:
look at this image . It Makes clear about answer
11 15/26 + [-17 5/13] =
To subtract two fractions the denominators should be same
Least common denominator = 26
We multiply second fraction by 2
Uh you only showed one graph
1.) 10
2.) 60
3.) 80
hope this helps!