A spinner is divided into four equal sections: two are red, one is green, and one is blue. If you spin the spinner four times in a row and it lands on green each time, would you think that the spinner is broken? a No. However, if the spinner lands on green a fifth time, then there is something wrong with the spinner. b Yes. The probability of four green spins is 0.0039, which is too small for the event to likely occur. c Yes. Two of the four spins would have landed on red if the spinner was fair. d No. The probability of four green spins is 0.0039, which is small but not impossible.

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