In Karen's bucket there are 10 brown worms and 9 red worms. Karen is going to choose 12 worms at random from the bucket to use for fishing. What is the probability that she will choose 8 brown worms and 4 red worms? Round your answer to three decimal places.

0.113 = 11.3% probability that she will choose 8 brown worms and 4 red worms

Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes.

In this question, we order in which the worms are chosen is not important. So we use the combinations formula to solve this question.

Combinations formula:

is the number of different combinations of x objects from a set of n elements, given by the following formula.

Desired outcomes:

8 brown worms, from a set of 10.

4 red worms, from a set of 9.

So

Total outcomes:

12 worms from a set of 10 + 9 = 19. So

Probability:

0.113 = 11.3% probability that she will choose 8 brown worms and 4 red worms

answer: on graphs, the open and closed circles, or vertical asymptotes drawn as dashed lines us identify discontinuities.

as before, graphs and tables allow us to estimate at best.

when working with formulas, getting zero in the denominator indicates a point of discontinuity.

when working with piecewise-defined functions, check for discontinuities at the transition points where one piece ends and the next begins.

step-by-step explanation: