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Papessa [141]
3 years ago
12

What if we draw three socks from the box instead. what is the probability that we draw a matching pair? (having all three socks

be the same color also counts as having a matching pair.)?
Mathematics
1 answer:
frutty [35]3 years ago
8 0

There is a chance of 1/16*1/15 that she gets the specific socks pair according to laws of probability and the counting principle but thats not how it will work over here.

As we should be guaranteed that she gets the number of socks she obviously must take out around 9 socks as we are taking the worst case scenario where all the socks that come out are the different ones so the ninth sock must match any of the others.

But if we draw three socks obviously the probability is 1/16*1/15*13/14 as we dont want the third one to be same. We can multiply the answer by 3 as it can be in three different orders.

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How do you write 32,005,008 in two forms
Alekssandra [29.7K]


1.                    Thirty two million five thousand and eight


2.                    30,000,000+ 2,000,000 + 5,000 + 8

3 0
3 years ago
Plzzzzzzzz! A suitcase lock has a code 4 symbols long. The symbols on the lock are a star, a square, a circle, a triangle, a lin
34kurt

Answer:

                \dfrac{1}{30}

Step-by-step explanation:

6 symbols and 4-symbol code so number of combinations wich doesn't contain the same symbol twice would be:

6•5•4•3 = 360

If code starts with a star followed by triangle that means only one posibility for first two symbols and code doesn't containing the same symbol twice means that left 4 symbols for next two.

So number of combinations of code starting with a star followed by triangle and doesn't containing the same symbol twice will be:

1•1•4•3 = 12

The probability that a randomly chosen code starts with a star followed by triangle and doesn't contain the same symbol twice:

\dfrac{1\cdot1\cdot4\cdot3}{6\cdot5\cdot4\cdot3}=\dfrac{1\cdot1}{6\cdot5}=\dfrac{1}{30}

7 0
3 years ago
The cost of 7 apples is $2.10. What is the constant of proportionality that relates to the number of apples ,x, to the cost in d
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Answer:

y is the number of apples.

Step-by-step explanation: Because if x is the cost for one apple then y is for the number of apples.

4 0
2 years ago
A survey showed that the probability that an employee gets placed in a job that is suitable for the employee is 0.65. A psychome
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Answer would be A)0.105.
6 0
3 years ago
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Divide 7% into $240 dollars and hat should get you your answer.
hope this helps!
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3 years ago
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