Answer:
[tex]\frac{18}{40}=0.45[/tex]
Though it may vary, it's going closer to 0.5 as long as we enlarge our sample.
Step-by-step explanation:
1) Since a coin has heads and tails, then a sample proportion of 40 we can simulate it using some applets.
2) Here are the most common outcomes, as long as we continue on flipping coins.
[tex]\frac{18}{40}=0.45[/tex]
If we continue enlarging our sample (80, 120,160...) the probability goes closer to 0.5
This shows: the theoretical probability goes closer and closer to the experimental probability of heads and tails
[tex]S_{80}=0.503\\S_{120}=0.50[/tex]
