or this problem, assume that outcome O1 has frequency 4/a, outcome O2 has frequency 1/a, and outcome O3 has frequency 9/a. What is the value of a?

Question

 I do not know how to find what "a" is

Answer 1

Assuming that there are only three possible outcomes then the sum of the respective frequencies must equal 1.

So (4/a)+(1/a)+(9/a)=1 so a = 14

 

 

Jim