Thursday
September 18, 2014

Homework Help: Math

Posted by Karen on Monday, June 17, 2013 at 8:43pm.

How do you weight probabilities to add up to 1?

Example:
Chance of rain .25
Chance of person wearing purple hat .1
Chance of person wearing red hat .05
Chance of person wearing black hat .2
Chance of person wearing yellow hat .1
Chance of person wearing white hat .3

So, You run into a person wearing a hat in the rain.

The chance of running into people in each color of hat in the rain is

Chance of person wearing purple hat .025
Chance of person wearing red hat .0125
Chance of person wearing black hat .05
Chance of person wearing yellow hat .025
Chance of person wearing white hat .075

Would I weight this to make it all add up to 1? What is what I need to do called?

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