SOLUTION: A spinner is divided into 6 equal parts and numbered from 1 through 6. what is the probability of spinning a number less than 4 or greater than 5 in a single spin?

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Question 554699: A spinner is divided into 6 equal parts and numbered from 1 through 6. what is the probability of spinning a number less than 4 or greater than 5 in a single spin?
Answer by jim_thompson5910(35256) About Me  (Show Source):
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P(less than 4 or greater than 5) = 1-P(4 or 5)

P(less than 4 or greater than 5) = 1-(P(4) + P(5))

P(less than 4 or greater than 5) = 1-(1/6 + 1/6)

P(less than 4 or greater than 5) = 1-2/6

P(less than 4 or greater than 5) = 4/6

P(less than 4 or greater than 5) = 2/3