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qwelly [4]
3 years ago
9

A bag contains 5 red marbles, 10 white marbles, and 9 blue marbles. You draw 3 marbles out at random, without replacement. What

is the probability that all the marbles are red?
Mathematics
2 answers:
BlackZzzverrR [31]3 years ago
7 0

Answer:

5/24

Step-by-step explanation:

  • Number of red marbles = 5

  • Number of white marbles = 10

  • Number of blue marbles = 9

  • Total number of marbles = 24

  • P(getting red marbles) = (Number of red marbles)/(Total number of marbles)

  • P(getting red marbles) = 5/24
Nutka1998 [239]3 years ago
6 0

Answer:

<h2>ways to pick 5 out of 21 21C5 </h2><h2>there is one way to select 5 out of 5 (red), so the probability of 5 red is 1 / 21C5</h2><h2>there is one way to select 5 out of 5 (red), so the probability of 5 red is 1 / 21C5ways to pick 2 out of 5 (red) 5C2</h2><h2>there is one way to select 5 out of 5 (red), so the probability of 5 red is 1 / 21C5ways to pick 2 out of 5 (red) 5C2ways to pick 3 out of 16 (non-red) 16C3</h2><h2>16C3so the probability of 2 red is [(5C2)(16C3)] / 21C5</h2><h2> [(5C2)(16C3)] / 21C5ways to pick no red 16C5 </h2><h2> [(5C2)(16C3)] / 21C5ways to pick no red 16C5 probability of no red 16C5 / 21C5</h2>

Explanation:

<em>#</em><em>H</em><em>o</em><em>p</em><em>e</em><em> </em><em>it</em><em> </em><em>helps</em><em>!</em>

<em><u>Answered</u></em><em><u> </u></em><em><u>by</u></em><em><u> </u></em><em><u>R</u></em><em><u>eyvREYV111</u></em>

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