Rei-Kuromiya
New member
- Joined
- May 19, 2010
- Messages
- 2
"A missile has a 70% chance of hitting a target. How many missiles should be fired to make sure the target is destroyed with a probability of .99 or more?"
I tried to use the equation b(n, k; p) to do this but there's something wrong here. Since the problem is asking for the number of missiles and the given information would be "p(chances of hitting a target)= .70" and "q(failure)= .30". Though there's also the probability of the target being destroyed is "p=.99 , q=.01". I'm not sure whether this sort of problem might require me to format the binomial equation a bit differently or the problem requires a different method to solved.
I'd like to know how I should format my equation so that I am able do the rest by myself.
I tried to use the equation b(n, k; p) to do this but there's something wrong here. Since the problem is asking for the number of missiles and the given information would be "p(chances of hitting a target)= .70" and "q(failure)= .30". Though there's also the probability of the target being destroyed is "p=.99 , q=.01". I'm not sure whether this sort of problem might require me to format the binomial equation a bit differently or the problem requires a different method to solved.
I'd like to know how I should format my equation so that I am able do the rest by myself.
