Question

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)

Answer 1

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

\[\large P(Heads) = \frac{15}{30}\]