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3 years ago

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There are 75 ducks in a pond 25 ducks are marked as a winner if you take 2 ducks out but don't replace them what is the probably

that both ducks are winners

1 answer:

USPshnik [31]3 years ago

4 0

Answer:

Step-by-step explanation:

The total number of ducks in the pond is 75. 25 ducks are marked as a winner.

Probability is expressed as number of possible outcomes/total number of outcomes.

if you take 2 ducks out but don't replace them, the probability that the first duck that you took out is a winner is

25/75 = 1/3

The total number of ducks left would be 74 and the number of winners would be 24.

the probability that the second duck that you took out is a winner is

24/74 = 12/37

Therefore, the probability that both are winners is

1/3 × 12/37 = 4/37

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Explanation:

Given that the first term of the geometric sequence is 15

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To find these terms, we need to know the common difference.

The common difference can be determined using the formula,

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For $n=4$ , we have,

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$=15(\frac{27}{25} )$

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Thus, the 4th term of the sequence is $\frac{81}{25}$

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