Suppose we want to choose 4 colors, without replacement, from 16 distinct colors. (a) How many ways can this be done, if the order of the choices is relevant? (b) How many ways can this be done, if the order of the choices is not relevant? (

1 Para crear una prueba, un profesor tiene un banco de 50 preguntas. Si de ellas escogerá 20. ¿de cuántas formas puede crear la prueba? \( =50 \) \( =20 \)

1. Em uma fábrica de potes de plastico, observou-se no controle de qualidade que 1 em cada 10 potes apresentava algum tipo de defeito. Qual a probabilidade de escolher um pote aleatoria- mente dessa fábrica e ele não possuir defeito algum?

Question A professor gives a surprise quiz with one multiple choice question. There are 4 answer possibilities: B, C, and D. What is the probability that you randomly guess and select the correct answer? Give your answer as a fraction.

In an aquarium, there are 7 large fish and 6 small fish. Half of the small fish are red. One fish is selected at random. Find the probability that it is a small, red fish. Write your answer as a fraction in simplest form.

A drawer is filled with 2 black shirts, 7 white shirts, and 11 gray shirts, One shirt is chosen at random from the drawer. Find the probability that it is not a black Write your answer as a fraction in simplest form.