Tickets for a raffle cost \( \$ 7 \). There were 800 tickets sold. One ticket will be randomly selected as the winner, and that person wins \( \$ 1000 \) and also the person is given back the cost of the ticket. For someone who buys a ticket, what is the Expected Value (the mean of the distribution)? If the Expected Value is negative, be sure to include the "-" sign with the answer. Express the answer rounded to two décimal places. Expected Value \( =\$ \$ \)

ATIVIDADE AVALIATIVA 01 - Se lançarmos um dado, qual a probabilidade de obtermos um número maior que 4 ? a) \( 2 / 3 \) b) \( 1 / 4 \) da \( 1 / 3 \) d) \( 3 / 2 \)

An organization will give a prize to a local artist. The artist will be randomly chosen from among 10 painters, 3 sculptors, and 5 photographers. What is the probability that the artist chosen will be a sculptor or a photographer? Write your answer as a fraction in simplest form.

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.

02- Se lançarmos uma moeda, qual a probabilidade do lado "cara" ficar voltado para cima? a) \( 1 / 3 \) e) \( 1 / 2 \) c) \( 1 / 4 \) d) 0