Update w3.md

Week3/w3.md

@@ -14,7 +14,7 @@ II. Your friend talked about a man with a job in the banking world.
 
 2\. You roll a dice five times. The outcomes are as follows: `6 6 6 6 6`. Then you repeat this and you find: `1 4 3 5 2`.
 
-**The first outcome is equally likely as the second outcome.**
+**Both outcomes are equally likely.**
 
 
 3\. Imagine you're at the beach. You're really thirsty and decide to go to the beach stand to get some coke. When you arrive you see there's a queue consisting of two girls and one boy. Unfortunately the stand has only one coke left. You've learned that three in ten girls drink coke and 60 percent of boys do.
@@ -168,7 +168,7 @@ choose(50, 5) / choose(100, 5)
 14\. The chance that the front light on your bike will fail is 20%, the chance that your rear light will fail is 10% and the chance that both will fail is 4%. What is the chance that both lights will work? (regardless of the answer you should do something about this situation of course).
 
 ```r
-
+# [1] 0.74
 ```
 
 15\. Which of the following statements is correct?
@@ -177,5 +177,5 @@ I. A discrete random variable can take a finite number of distinct values. True
 
 II. Height is an example of a continuous random variable. True
 
-- **Both statements are true.**
+- **Both statements are correct.**
 - Statement I is true, statement II is false.