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The probability of getting equal results when flipping two coins is 1/2 or 50%, and the probability of getting 2 heads and 1 tail when flipping three coins is 3/8 or 37.5%.
Probability of obtaining equal results when flipping two coins: When flipping two coins, there are four possible outcomes: HH, HT, TH, TT. The probability of obtaining equal results, which are both heads (HH) or both tails (TT), is 2 out of 4, so it is 1/2 or 50%.
Probability of obtaining 2 heads and 1 tail when flipping three coins: When flipping three coins, there are eight possible outcomes. Getting 2 heads and 1 tail (HHT, HTH, THH) has a probability of 3/8 or 37.5%.
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