22.- De un grupo de 6 elementos se escogerán 3, uno tras otro. Si el orden de A) 120 B) 6 C) 720

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 \( £ 1 \) )

Dans l'urne ci-contre, il y a des On tire au hasard un jeton dans On considère les évènements si B: «l le jeton tiré est bleu I: «le numéro du jeton ti 1) Les évènements B et I sont-i 2) Combien faut-il rajouter de évènements B et I soient indépe Appelons \( x \) le nombre de jetons ble \( x+4 \). Le nombre total de jetons e a) Calculer de même \( p(I) \) et \( p \)

В урне имеется 4 шара, они пронумерованы числами: \( 1,2,3 \) и 4. Берём наугад один шар. Найдите вероятность того, что изображённое на нём число не будет 1. \( \begin{array}{llll}\text { 1) } \frac{1}{4} ; & \text { 2) } \frac{1}{2} ; & \text { 3) } \frac{1}{3} ; & \text { 4) } \frac{3}{4}\end{array} \)

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?