Answer: B) 3/5
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Step-by-step explanation:
The experimental probability is the probability based on the experiment or trials that Lynn and Dawn conducted. We divide the number of heads that came up (18) over the number of coin tosses total (30).
So we get the fraction 18/30. This reduces to 3/5 after dividing both parts by 6.
Or you can note how 18/30 = 0.6 and 3/5 = 0.6, so this must mean that 18/30 = 3/5.