Answer: To find the probability of Janice making her next free throw, you can use the proportion of successful free throw shots out of the total number of free throw shots attempted so far.
First, we need to find the number of free throws made by Janice so far:
80% success rate * 15 free throws attempted = 12 free throws made
Then we add the number of free throws made today:
12 + 3 = 15
Then we add the number of free throws attempted today:
15 + 5 = 20
So the probability of Janice making her next free throw is:
15 free throws made / 20 free throws attempted = 75%
So, the probability that Janice will make her next free throw is 75%.
It's worth noting that this answer is based on the assumption that her success rate will remain the same and doesn't take into account any other variable or change in her performance.
Explanation: