I can’t I sorry but Ik how to subtract fractions
It’s is C. 3 because it makes sense
Answer:
The correct answers are as follows.
a. 8.624%
b. 60.84%
c. 27.75%
Step-by-step explanation:
In order to find each of these, take the likelihood of each of steps and multiply them together.
a. For this one, we need to note that the first two spins should not be blue. The likelihood of them not being blue is the chance for red and green put together (37%). Then we want the third spin to be the blue odds (63%)
.37 * .37 * .63 = .08624 = 8.624%
b. For the purpose of this, we are looking just for the first two spins to not be red (78% probability). After that, it does not matter what the third spin is since it says "at least 3 times)
.78 * .78 = .6084 = 60.84%
c. For this one, we need to combine two things. Firstly, the chance that the first spin is green (15%). Then we would add in the likelihood that the first spin is not green (85%), but the second is.
.15 + (.85 * .15) = .2775 = 27.75%