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Points: 0 of 1 Save Use the spinner shown. It is equally probable that the pointer will land on any one of the six regions. If the pointer lands on a borderline, spin again. If the pointer is spun twice, find the probability that it will land on blue and then blue. Find the probability that the spinner will land on blue and then blue. The probability is \( \square \) . (Type an integer or a simplified fraction.)

Ask by Blake Watson.
Mar 31,2025

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Tutor-Verified Answer

Answer

The probability of landing on blue and then blue is \( \frac{1}{36} \).

Solution

To find the probability that the spinner will land on blue and then blue, we need to consider the probability of landing on blue in the first spin and then landing on blue again in the second spin. Given that the spinner is equally probable for any one of the six regions, the probability of landing on blue in the first spin is \( \frac{1}{6} \). Since the pointer lands on a borderline, we need to spin again. Therefore, the probability of landing on blue in the second spin is also \( \frac{1}{6} \). To find the probability of both events happening (landing on blue in the first spin and then landing on blue in the second spin), we multiply the probabilities of each event: \[ P(\text{blue and then blue}) = P(\text{blue in first spin}) \times P(\text{blue in second spin}) = \frac{1}{6} \times \frac{1}{6} = \frac{1}{36} \] Therefore, the probability that the spinner will land on blue and then blue is \( \frac{1}{36} \).

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To calculate the probability that the spinner will land on blue twice, we first need to determine the probability of landing on blue in a single spin. Since there are six equally probable regions, if one of those regions is blue, the probability of landing on blue in one spin is: \[ P(\text{Blue}) = \frac{1}{6} \] Next, because the spins are independent events, we can multiply the probabilities of the two spins together. Therefore, the probability of landing on blue on the first spin and then blue on the second spin is: \[ P(\text{Blue and then Blue}) = P(\text{Blue}) \times P(\text{Blue}) = \frac{1}{6} \times \frac{1}{6} = \frac{1}{36} \] Thus, the probability that the spinner will land on blue and then blue is: \[ \frac{1}{36} \]

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