Gina spins a penny 100 times and it lands heads side up 38 times. explain why Gina's experimental probability may be different from the theoretical probability of spinning a coin.
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One possible explanation would be that the penny was less than perfect, that is, not perfectly balanced, not perfectly round, and the surface on which the penny was spun was slightly uneven. So, the number of actual, observed heads (38/100) differed from the theoretical probability of getting heads, which would be 50/100, or 0.50.
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