david has a collection of 9 grey fingerboards, 4 white fingerboards, and 3 yellow fingerboards. he chooses…

david has a collection of 9 grey fingerboards, 4 white fingerboards, and 3 yellow fingerboards. he chooses one at random. locate the probability of the following events on the number line. a white fingerboard is chosen. a black fingerboard is chosen.

david has a collection of 9 grey fingerboards, 4 white fingerboards, and 3 yellow fingerboards. he chooses one at random. locate the probability of the following events on the number line. a white fingerboard is chosen. a black fingerboard is chosen.

Answer

Explanation:

Step1: Calculate total number of finger - boards

$9 + 4+3=16$

Step2: Calculate probability of choosing a white finger - board

The number of white finger - boards is 4. So the probability $P(\text{white})=\frac{4}{16}=\frac{1}{4}$. On the number line, $\frac{1}{4}$ is located at point B.

Step3: Calculate probability of choosing a black finger - board

There are 0 black finger - boards. So the probability $P(\text{black}) = 0$. On the number line, 0 is located at point A.

Answer:

A white finger - board is chosen: B A black finger - board is chosen: A