posted by Anna on .
The probability that Alysha will miss school today is 0.15. The probability that Carla will miss school today is 0.07. The probability that both of these students will NOT miss school today is what?
Okay, hete is how to solve this problem:
Since the probability that Alysha will miss is 0.15, that means that it is 15%, right? So, the probability that Alysha will NOT miss is 100 - 15, which is 85%. So the answer is 0.85
Now for Carla. 0.07 = 7%.
100 - 7 = 93%. So the answer is 0.93.
prob(Alysha miss school AND Carla miss school) = (.15)(.07) = .0105
So prob that both will not miss school
= 1 - .0105