Question

Can anyone help me on the last question?

Answer 1

Answer:

          0.7

Step-by-step explanation:

A' is everything what is not A

So:

    A' = {9, 10, 11, 12, 13, 15, 16}

Number of ways it can happen: |A'| = 7

Total number of outcomes: |Ω| = 10

Probability of an event happening:

                                         $\bold{P(A')=\dfrac{|A'|}{|\Omega|}=\dfrac7{10}=0.7}$