A bag contains identical balls of different colours. There are $12$ red, $10$ white, $8$ yellow, $3$ blue and $2$ black balls. Without looking into the bag, Jonathan takes out the balls one by one. What is the least number of balls that Jonathan must take out from the bag in ...
16 A bag contains 4 red balls and 5 blue balls only.Two balls are chosen at random without replacement.Find the probability that the two balls chosen are different colours.oe..[3] 相关知识点: 试题来源: 解析 {{40}\over{72}} oe{{5}\over{9}} M_2for4/9*5/8*20e o oe ...
<p>To solve the problem step by step, we will use Bayes' theorem and the concept of conditional probability.</p><p><strong>Step 1: Define Events</strong> Let: - \( E1 \): Event that there are 2 white balls in the bag. - \( E2 \): Event that there are 3 w
A bag contains 3 red balls, 5 black balls and 4 white balls. A ball is drawn at random from the bag. What is the probability that the ball drawn is: (i)
Abagcontainsthreegreenmarbles>列表1 题目:A bag contains three green marbles, four blue marbles, and two orange marbles. If a marble is picked at random, what is the probability that an orange marble will NOT be picked? A. 1/4 B. 1/3 C. 4/11 D. 1/2 E. 9/7...
外始叫被清外始叫被清A bag contains 3 red balls and 2 blue balls. The probability of randomly dr
A bag contains 8 red balls and 4 blue balls. What is the ratio of red balls to blue balls? A. 1:2 B. 2:1 C. 3:1 D. 1:3 相关知识点: 试题来源: 解析 B。选项 A1:2 错误;选项 B8 个红球,4 个蓝球,红球与蓝球比例是 2:1,正确;选项 C3:1 错误;选项 D1:3 错误。
<p>To solve the problem step by step, we will calculate the probability of drawing a white ball from the two bags.</p><p><strong>Step 1: Identify the contents of the bags.</strong> - Bag A contains 3 white balls and 2 black balls. - Bag B contains 5 whit
A、bag contains 3 red, 4 white, and 5 blue marbles. Jason begins removing marbles from the bag at random, one at a time. What is the least number of marbles he must remove to be sure that he has at least one of each color
A bag contains 5 chocolate chip cookies, 1 with nuts, and the rest without nuts. If Georgian selects two cookies simultaneously and at random, what is the probability that one of the cookies will have nuts?