anonymous
  • anonymous
Will give medal PLEASE Isla flipped a coin 30 times. The coin landed heads up 9 times and tails up 21 times. Part A: Based on the results, what is the experimental probability of the coin landing heads up? Show your work. (5 points) Part B: What is the theoretical probability of the coin landing heads up? Show your work. (5 points)
Mathematics
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chestercat
  • chestercat
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johnweldon1993
  • johnweldon1993
Well the experimental probability would be based on what your "experiment" showed So, out of the 30 flips...9 were tails and 21 were heads So \[\large P(Heads) = \frac{21}{30}\] Now the THEORETICAL probability would be what you would expect to happen Now a coin has 2 sides...heads and tails...so you would expect if you flip the coin 30 times...half would beheads..and half would be tails right? *provided this is a standard fair coin that is* So your theoretical probability would be \[\large P(Heads) = \frac{15}{30}\]

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