Question

Draw a tree digram.
What is the probability of waking up early at least one day?

Answer 1

The probability of waking up early at least one day is 1.2

Explanation:

We are given the tree diagram

We are supposed to find the probability of waking up early at least one day

So, we are supposed to find the probability of waking up early for 1 and more than 1 day

By studying the tree diagram

So the probability of waking up early for 1 and more than 1 day =
`(2)/(5)+(2)/(5)+(2)/(5)`

The probability of waking up early at least 1 day =
`(2)/(5)+(2)/(5)+(2)/(5)=1.2`

Hence the probability of waking up early at least one day is 1.2