Answer:
0.35 or 35%
Step-by-step explanation:
To find the probability of selecting a junior, you first need to find the total number of juniors.
[tex]13+20+2=35[/tex]
Then, since we're randomly selecting any student with no restrictions, the sample size is just the 100 given up at the beginning.
Finally, to find the probability of selecting a junior, divide the number of juniors by the total sample size:
[tex]\frac{n(J)}{n(S)}=\frac{35}{100}=0.35[/tex]
