Normal Distribution by Clarice Chan

Dear Students,

clarice_chan — 2024-03-18 15:43:58 UTC

please

- post any questions you have in the respective columns.

- see if anyone else has already asked a similar question, and feel free to build on others' questions as well!

- this padlet will close for submissions on Friday, 26 April.

You may look for your Math tutor if you have further questions after that.

Question

2024-04-18 13:00:36 UTC

How do we know when the limit of the invNorm function should be left, center or right? I can't tell just by looking at the question alone...

invNorm function

clarice_chan — 2024-04-18 13:56:47 UTC

To know when to choose left of right, you look at the inequality inside the probability.

P(X

P(X>a)=0.55 means that the area on the right of a is 0.55. Since the said area is on the right, we choose right tail.

2024-04-20 15:15:18 UTC

how do we know when we need to use standardization?

Standardization

clarice_chan — 2024-04-22 03:18:18 UTC

We usually perform standardization when both mean and variance is unknown for the distribution.