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A spinner has numbers 1-10, all evenly spaced, is spun twice. What is the probability that the second spin lands on a space adjacent to the space where the first spin landed?
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15 votes
15 votes
A spinner has numbers 1-10, all evenly spaced, is spun twice. What is the probability that the second spin lands on a space adjacent to the space where the first spin landed?

User Jaetzold
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2 Answers

17 votes
17 votes
20% and 100 sets of 2 combos
User Therkel
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3.2k points
22 votes
22 votes

Answer:

.20 or 20%

Explanation:

100 possible sets of two spin combos

20 result in the desired 'next-door ' combo

20/100 = .20 or 20 %

User Vince Fedorchak
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3.2k points
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