To solve the problem, we need to find the probability of drawing a white ball from one of the two bags. We will use the law of total probability to find this. 1. Identify the bags and their contents: - Bag 1 contains 3 white balls and 2 black balls. - Bag 2 contains 2 white ba...
A bag contains 2 white and 4 black balls . A ball is drawn 5 times with replacement .The probability that atleast 4 of the balls drawn are white is
A bag contains two pencils, one ruler, and five pens. What is the probability of randomly selecting a pen, a ruler, and a pencil without replacement? Probability: In statistics, the probability is defined as the fraction ...
A bag of marbles contains 3 white and 4 black marbles. A marble will be drawn from the bag randomly three times and put back into the bag. Relative to the outcomes of the first two draws, the probability that the third marble drawn is white is:A. dependent.B. conditional.C. independen...
结果1 题目8 A bag contains 3 white balls and r red balls, where r ≥2. Balls are drawn one at a time.at random from the bag and without replacement. The random variable X is the number of white balls drawn until 2 red balls are drawn.(i) Show that P(X=1)=(6r(r-1))/((...
A. which contains B.containing C.that included D.including 免费查看参考答案及解析 题目: He ___ have gonehome, for his bag is still on the desk. A.wouldn'tB.can't C.shouldn't D.needn't 免费查看参考答案及解析 题目: He kept begging his parents for a new bag, and they finally_...
8●O●●8●OO○●O Bag A Bag B Bag A contains 5 black balls and 2 white balls.Bag B contains 4 black balls and 5 white balls.(a) Gustav picks one ball at random from bag A and replaces it.Write down the probability that the ball Gustav picks is black...[1](b)Shari a ...
A bag contains 4 white, 5 red, and 6 blue balls. Three balls are drawn at random from the bag. What is the probability that all of them are red? A basket contains 3 white balls, 2 yellow balls, and 5 red balls. a) Assuming the ball selection ...
A bag contains 4 white and 5 black balls and another bag contains 3 white and 4 black balls. A ball is taken out from the first bag and without seeing its colour is put in the second bag.A ball is taken out from the latter. Find the probability that the ball drawn is white. ...
结果1 题目 A bag contains 5 blue marbles, 4 white marbles, and 3 red marbles. If three marbles are randomly selected from the bag, what is the probability that the marbles selected will be of the same color? A. 122 B. 1110 C. 16 D. 15 E. 344 相关知识点: 试题来源: 解析 ...