WebIf four marbles are picked at random, what is the probability that one is green, two are blue and one is red? A). 4 15 B). 17 280 C). 6 91 D). 11 -- View Answer 7). There are 8 brown balls, 4 orange balls and 5 black balls in a bag. Five balls are chosen at random. Web27 feb. 2024 · Correct Answer - Option 1 : Only A Given: Red marbles: 6 Green marbles: 7 Blue marbles: 5 Total marbles: 18 Formula used: n C r = n!/ ( (n-r)! × r!) P = (Number of favorable outcomes)/ (Total number if outcomes) Calculation: Probability of all blue marbles: 5C 3 18C 3 5 C 3 18 C 3 = 5 408 5 408 Hence, Only A is the correct answer.

Solved If 4 marbles are picked randomly from a jar Chegg.com

WebIf a marble is drawn at random from the jar, the probability that it is green is ⅔. Find the number of blue balls in the jar. solution: Total number of marbles =24 Let the total … WebMath Statistics 13 If 4 marbles are picked randomly from a jar containing 5 blue marbles and 6 yellow marbles, in how many possible ways can it happen that at least 3 of the … potatoaroundmyround

A bag contains 9 blue balls and 3 red balls. A ball is selected at random..

Web10 apr. 2015 · There are 40 marbles in a jar, and 1/5 of the marbles are blue. 1/5 of 40 = 8. So, there are 8 blue marbles. 1/4 of the remaining marbles are red. We have already … Web12 sep. 2024 · A marble is selected at random from a jar containing 5 red marbles, 2 yellow marbles & 3 green marbles. What is the probability that a)the marble is red There are 10 total marbles and 5 red, so probability marble is red is 5/10 = 1/2 b)the marble is not yellow 8 marbles are not yellow, so probability marble is not yellow is 8/10 = 4/5 WebClick here👆to get an answer to your question ️ A jar of marbles contains 4 blue, 5 red, 1 green and 2 black marbles. A marble is chosen at random from the jar. After replacing it, a second marble is chosen. Find the probability of choosing a green and then a red marble. potato a nightshade