Question

Suppose the speed at which all people eat popcorn is normally distributed N (4,2). I then go an adopt a child...

a. What is the probability that this child will eat popcorn with a value greater than 5.5? i.e. P(X >5.5)?

- Draw a graph illustrating N(4,2) and the region that corresponds P(X>5.5) (5pts) - Compute the Z-score for X=5.5 (5pts)
- Draw the corresponding graph for N(0,1) (5pts)
- Compute the probability (5pts)

Answer 1

Here

Now we need to find

As distribution is normal we can convert x to z