Thread: Probability

Not sure if this is precalc but its at the end of my trig book anyways:


I get :

Which does not equal the book answer of
What is my error?

Originally Posted by Greymalkin

Not sure if this is precalc but its at the end of my trig book anyways:

I get :
Which does not equal the book answer of
What is my error?

.

So the book is correct.