SOLUTION: The odds of passing a test are 7:3. What is the probability of NOT passing? I think the answer is 3/10 , but I am not 100%. Thank you for any help:)

Algebra ->  Probability-and-statistics -> SOLUTION: The odds of passing a test are 7:3. What is the probability of NOT passing? I think the answer is 3/10 , but I am not 100%. Thank you for any help:)      Log On


   

Question 1161256: The odds of passing a test are 7:3. What is the probability of NOT passing?
I think the answer is 3/10 , but I am not 100%.
Thank you for any help:)
Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!


Yes. If the odds in favor of passing are 7:3, then there are 7 ways to pass and 3 ways to fail. Hence the probability of passing is 7/10 and the probability of failing is 1 minus 7/10 or 3/10.


John

My calculator said it, I believe it, that settles it