A bag contains 18 balls out of which x balls are red. (i) If the ball is drawn at random from the bag, what is the probability that it is not red? (ii) If two more red balls are put in the bag, the probability of drawing a red ball will be 98 times the probability of drawi...
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。
结果1 题目 4 A bag contains 20 balls.5 of these balls are red. A ball is picked at random from the bag.On the probability scale, draw an arrow () to show the probability that this ball is red.Arrow at 0.2500.5田 相关知识点: 试题来源: 解析 Arrow at 0.25 反馈 收藏 ...
<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)
From a bag containing 12 identical blue balls, y identical yellow balls, and no other balls, one ball will be removed at random. If the probability is less than that the removed ball will be blue, what is the least number of yellow balls that must be i
结果1 题目 34 A bag contains 51 balls. If a ball is chosen at random from the bag, the probability of choosing a red ball i 8/(17)Find the number of balls in the beg which are not red balls. A 24D B 25 C 26 D 27 相关知识点: 试题来源: 解析 D 反馈 收藏 ...
3. A bag contains 7 red balls and 3 green balls. A ball is taken out and replaced. A second ball is then taken out.R is the event that a Red ball is selected. G is the event that a Green ball is selected(a) Find the following probabilities(i)p(R)(ii) p(G)(iii) p(G a...
<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 10 red balls, 16 white balls and 8 green balls. A ball is drawn out of the bag at random. What is the probability that the ball drawn is neither red nor green ? View Solution Exams IIT JEE NEET UP Board Bihar Board ...