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Ratling [72]
3 years ago
9

The ratio of cats to dogs in the park is 2:3. If there are 18 dogs in the park, how many cats are in the park?

Mathematics
1 answer:
Brilliant_brown [7]3 years ago
3 0

Answer:

12

Step-by-step explanation:

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Calculate the approximate probability that at least 2 children have been diagnosed with ASD among the 200 selected children.
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Answer:

The approximate probability that at least 2 children have been diagnosed with ASD among the 200 selected children is

0.01 or 1%.

Step-by-step explanation:

Number of selected children = 200

The probability of no child been diagnosed with ASD = P(None) = 198/200 = 0.99

Therefore, the probability of at least two children been diagnosed with ASD = 1 - 0.99 = 0.01.

This is the same as:

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therefore, the approximate probability that at least 2 children have been diagnosed is:

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The above are summed up in:

The probability of at least one = 1/200 = 0.05

Therefore, the probability of at least two = 0.05 * 2 = 0.01

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