L
Lindey M
Guest
A maths teacher often gets delayed at 3 roundabouts on the way to work.
the probability of a delay at the 1st roundabout is 0.4
2nd roundabout is 0.6
and 3rd roundabout is 0.7
Find the probability that the teacher is
(a) delayed at all 3 roundabouts
(b) delayed at only 1 roundabout
(c) delayed at 2 or more roundabouts
workings please, i acknowledge the fact a tree diagram may be needed to work it out, but dont worry about attempting to draw it online!
the probability of a delay at the 1st roundabout is 0.4
2nd roundabout is 0.6
and 3rd roundabout is 0.7
Find the probability that the teacher is
(a) delayed at all 3 roundabouts
(b) delayed at only 1 roundabout
(c) delayed at 2 or more roundabouts
workings please, i acknowledge the fact a tree diagram may be needed to work it out, but dont worry about attempting to draw it online!