John and his friend plan to travel to North Dakota during winter break. The probability that they go by car is 2/3 and the probability that they go by plane is 1/5. What is the probability that they go to Florida by car or plane?
These are independent events so P(A)+P(B)
2/3 + 1/5 = 13/15??
I think harish21 was addressing this misconeption revealed by the OP:
These are independent events so P(A)+P(B)
This is a seperate issue to the actual question that was posted but is still relevant to the original post.
Edit: Thread closed: See here: http://www.mathhelpforum.com/math-he...tml#post569935
(By the way, post #2 in this thread is my favourite post of the year ....)