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nlexa [21]
3 years ago
14

A box contains 5 red and 5 green marbles. if 5 marbles are drawn without replacement, what is the expected number of red marbles

Mathematics
1 answer:
Slav-nsk [51]3 years ago
4 0
<span>P( 5 reds, 1 green) = 6C3*P(drawing the red ones 1st, 2nd, 3rd 4th) = 6C5(5/10)(4/9)(3/8)(2/7)(1/6)(5/5) = 1/42</span>
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Simplify to a single power of 3:<br><br> 3^6 x 3
guapka [62]

Answer:
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5 0
2 years ago
How many times can 20 go into 140
skelet666 [1.2K]

Answer:

7 times.

Step-by-step explanation:

Divide 140/20.

You can use a calculator if you want.

140/20 = 7.

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3 years ago
The FBI wants to determine the effectiveness of their 1010 Most Wanted list. To do so, they need to find out the fraction of peo
Murrr4er [49]

Answer:

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Step-by-step explanation:

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3 years ago
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nika2105 [10]
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2 years ago
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Step-by-step explanation:

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