Standard Normal Distribution- Safety first ratio

CFA Level I Quant
#1

Hi Guys , I have dobut in one of the question in the ciriculum - Example 9 question no 3

How we can calculate the probablity of 0.91 or P(0.91) , it shows N(−0.91) = 1 − N(0.91) = 1 − 0.8186 = 0.1814

How 0.8186 is calculated. Can you share the steps

Thanks

#2

go to the standard normal distribution chart that will be provided to you.

[image]

https://statistics.laerd.com/statistical-guides/img/normal-table-large.png

[/image]

0.91 = 0.8186

(0.9 on the left, 0.01 on the top)