Question

Lan often takes his dog to the park. He estimates that 30% of the other dogs

he sees are retrievers, 20% are terriers, and 20% are German shepherds. He
designs a simulation.
Let 0, 1, and 2 represent retrievers.
Let 3 and 4 represent terriers.
Let 5 and 6 represent German shepherds.
Let 7, 8, and 9 represent other dogs.
The table shows the simulation results.
01611
49003
63777
91971
A. 0.75
B. 0.70
26343
49116
71890
58647
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Simulation Results
87208
98444
01595
39440
According to this simulation, what is the probability that at least one of the
next five dogs he sees is a retriever?
58889
34845
90500
28893
58822
67970
43938
51995

Answer 1

To find the probability that at least one of the next five dogs Lan sees is a retriever, we need to consider the total number of possible outcomes and the number of favorable outcomes.

In this case, the total number of possible outcomes is 5 (since Lan will see 5 more dogs). The favorable outcomes are when Lan sees at least one retriever.

Looking at the simulation results, we can see that there are two instances where Lan sees at least one retriever: 01611 and 49116.

Therefore, the probability of seeing at least one retriever among the next five dogs is 2/5, which is equivalent to 0.4.

So the correct answer is not provided in the options.