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mrsqueenbabe516
22.07.2019 •
Mathematics
There are 6 people in a raffle drawing, two raffle winners each win gift cards,
each gift card is the same. how many ways are there to choose the winners?
decide if the situation involves a permutation or a combination, and then find
the number of ways to choose the winners.
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Ответ:
B. Combination: Number of ways = 15
Step-by-step explanation:
2 winners are to be chosen out of 6 people participating in the raffle drawing. In this case the order of selection does not matter, therefore, this situation involves combinations
So, we have to find combinations of 6 people taken 2 at a time. This can be represented by 6C2. The general formula for combinations is:
In this case n = 6 and r = 2. Using these values, we get:
Thus, there are 15 ways to chose the winners. So, option B gives the correct answer.
Ответ:
2
step-by-step explanation: