Answer: Frank has a 4 out 15 chance of winning and 9 out 15 chance of losing
Step-by-step explanation:
I don’t really know this one but I’m sure someone will help
Answer:
the answer is c a increasing line
P(1≤x≤3) defined the probability that the result is between 1 and 3, included. You can answer this question in two ways:
1. Sum the probabilities of good events:
From the graph, we have

So,

2. Use complementary probabilities
Asking that the result is 1, 2 or 3 is the same as asking that the result is not 4. The probability that the result is 4 is 0.16, so the probability that the result is not 4 will be

The result is obviously the same.