Given:
number of smallpox vaccines - 3
number of chickenpox vaccines - 6
number of influenza vaccines - 2
Find: the probability of picking NOT an influenza vaccine
Solution:
To get the probability, we use the formula below.

In the given scenario, we have a total of 11 vaccines.
Our favorable outcome is NOT an influenza vaccine, therefore, we have a total of 9 favorable outcomes (3 smallpox and 6 chickenpox vaccines).
Plugging into the formula above the number of favorable and possible outcomes. we get:

Answer:
Therefore, the probability of picking NOT an influenza vaccine is 9/11.