В некотором опыте возможно три элементарных события \( a, b \) и \( c \). Вероятность того, что наступит либо событие \( a \), либо событие \( b \), равна 0,37 . Вероятность того, что наступит либо событие \( a \), либо событие \( с \), равна 0,71 . Найди вероятность каждого из элементарных событий.

Sebuah dompet berisi 4 buah uang logam seribu rupiah dan 3 buah uang logam lima ratus rupiah Dompet yang kedua berisi 3 buah uang logam seribu rupiah dan 5 buah uang logam lima ratus rupiah. Sebuah uang logam diambil dari dompet pertama dan dimasukkan pada dompet kedua. Jika kemudian diambil sekeping uang logam dari dompet kedua, berapa peluangnya bahwa uang logam yang diambil dari dompet kedua tersebut adalah uang logam lima ratus rupiah?

10. The Editor-in-Chief of the student newspaper was doing a final review of the articles submitted for the upcoming edition. 7 were health care articles. If he liked all the articles equally, and randomly selected 5 articles to go on the front cover, how many ways can he choose which ones? 11. Anna got a summer job at a movie theater cleaning the aisles after each film. This Sunday, 7 movies are scheduled to show. If Anita is randomly assigned to clean up after 4 movies, how many ways can Anna's theaters be assigned? 12. Finn performs 10 exercises over the span of a week. 5 of his exercises involve biking. If he randomly chose 6 exercises to do on Monday, what is the probability that exactly 4 of the chosen exercises involve biking?

4. Roger is packing a lunch to bring to school. There are 2 types of sandwiches to choose from and 4 types of fruit. For the drink, Roger has 4 options. Lastly, there are 3 possibilities for the dessert. How many different lunches can Roger pack? 5. The basketball season is almost over, and the coach is trying to order a trophy to award to the team's MVP. The trophy company has 7 different bases and 9 different figurines of people playing basketball. The MVP's name can be engraved in 6 different fonts. How many different trophies can the coach order?

В эксперименте предыдущей задачи найдите вероятность того, что сумма выпавших чисел равна 7. \( \begin{array}{llll}\text { 1) } \frac{1}{6} ; & \text { 2) } \frac{1}{12} ; & \text { 3) } \frac{1}{8} ; & \text { 4) } \frac{1}{10}\end{array} \)

c Use the most appropriate table to work out each of these probabilities i \( P \) (Benji chooses a 10p coin and Marta chooses a 20p coin) ii \( P \) (they both choose silver coins) iiiP (they choose a coin with the same value) iv \( P \) (the total is greater than 40 p) v \( P \) (the total is greater than \( £ 1 \) )