Question

When a softball player gets a hit, it can be a single, double, triple, or home run. When Josephine is at bat, the probability that she hits a single is 15 percent and the probability that she hits a double is 5 percent.
What is the probability that Josephine hits a single or a double when she is at bat?

3 percent
10 percent
20 percent
75 percent

Answer 1

The key word here is "or". If it's an OR question, you add the probabilities together. If it says "and", you multiply them together
As it is an OR question though, you add them. 
So: 
15 + 5 = 20%

Answer 2

Answer:

the answer is 20%

Step-by-step explanation: