Step-by-step explanation:
Given that,
A piece of buttered toast falls to the floor 17 times. The toast landed buttered side up 6 times.
It means that the total number of outcomes are 17
We need to find the probability that the toast lands buttered side down. Favourable oucome is 17-6 = 11
So, probability is given by :
![P(E)=\frac{\text{favourable outcomes}}{\text{total no of outcomes}}](https://img.qammunity.org/2021/formulas/mathematics/college/70k81d26r037e1j8qqk8qoqo8vfy961gw8.png)
![P(E)=(11)/(17)](https://img.qammunity.org/2021/formulas/mathematics/college/4jny8spr7mr1vs3wdwy3qbosrvu358111x.png)
So, the probability that the toast lands buttered side down is 11/17.