Question

The probability that a train arrives on time is 4/5. Draw a tree diagram to show all.the possible outcomes for three consecutive mornings. Using the tree diagrams, calculate the probability that:
a)The train is on time on all three mornings.
b)The train is late first two mornings.
c)The train is on time 2/3 mornings.
d) The train is on time atleast twice.​

Answer 1

The probability that a train arrives on time is 4/5. Draw a tree diagram to show all.the possible outcomes for three consecutive mornings. Using the tree diagrams, calculate the probability that:

a)The train is on time on all three mornings.

b)The train is late first two mornings.

c)The train is on time 2/3 mornings.

d) The train is on time atleast twice.