Chapter 9, Problem 20CT

To determine

To find: probability that it will not snow.

Answer to Problem 20CT

  $\frac{1}{15}$

Explanation of Solution

Concept Used:

Probability of the complement of the event A is given by:

  $P\left(A^{\prime }\right)=1-P\left(A\right)$

It is given that the probability that it will snow is 90%.

Now the event that it will not snow is the complement of the event that it will snow.

Thus, probability that it will not snow is:

  $\begin{array}{c}P\left(E\right)=100\%-90\%\\ =10\%\end{array}$