Tickets for a raffle cost \( \$ 10 \). There were 758 tickets sold. One ticket will be randomly selected as the winner, and that person wins \( \$ 1600 \) 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 decimal places. Expected Value = \( \$ \)

4. A box contains a total of 100 CDs that were manufactured on two machines. Of them, 60 were manufactured on Machine I. Of the total CDs, 15 are defective. Of the 60 CDs that were manufactured on Machine I, 9 are defective. Let \( D \) be the event that a randomly selected CD is defective, and let A be the event that a randomly selected CD was manufactured on Machine I.

Dalam almari A mmi terdapat beberapa helai baju kemeja-T. I helai berwarna puth, 4 helai berwama hitam, 3 helai berwarna merah dan 3 helai berwarna hijau. Dia memilih schelai baju kemeja-T secara rawak dan didapati kebarangkalian memilih baju hitam ialah \( \frac{2}{9} \). Hitung nilaix: In Azmi's wardrobe, there are few pieces of \( T \)-shirts, \( x \) white shirts, 4 black shirts, 3 red shirts and 3 green shirts. He chooses a \( T \)-shirt at random and the probability of him choosing the black shirt is \( \frac{2}{9} \). Calculate the value of \( x \). A 4 B 6 C 8 D 10

Jim works at an Auto centre and accidentally drops 4 bad spark plugs into a box with 20 good spark plugs. a. If he selects two spark plugs at random from the box without replacement, and the first spark plug selected was a good one, what is the probability that the second spark plug is bad?

2.) Hannes wirft einen gewöhnlichen Spielwürfel. Wie groß ist die Wahrscheinlichkeit, dass die geworfene Augenzahl... \( \begin{array}{ll}\text {... kleiner als } 4 \text { ist? } & \text { B) ... eine gerade Zahl ist? }\end{array} \)

- выпполнить в тетради задание: Бросают две игральные кости. Событие \( A \) «на первой кости выпала тройка». Событие \( B \) - «на второй кости выпала тройка». Найди вероятность события \( A \cup B \). (Ответ округли до тысячных.)