Heres the problem:

Sorry about the indentation. Here’s the code. I don’t understand the purpose of multiplying 1.0 with numberOfHits / NUMBER_OF_TRIALS. Does it have to do with decimal precision?

```
import random
NUMBER_OF_TRIALS = 1000000
numberOfHits = 0
for i in range(NUMBER_OF_TRIALS):
x = random.random() * 2.0 - 1;
y = random.random() * 2.0 - 1;
if x < 0:
numberOfHits += 1
elif not (x > 1 or x < 0 or y > 1 or y < 0):
slope = (1.0 - 0) / (0 - 1.0)
x1 = x + -y * slope
if x1 <= 1:
numberOfHits += 1
print("The probability in Region 1 and 3 is " +
str(1.0 * numberOfHits / NUMBER_OF_TRIALS))
```