Question 2 (Multiple Choice Worth 2 points)

A spinner is spun twice with 3 equal sections colored orange, green, and blue. What is the [tex]P[/tex] (spinning one green and one blue)?

A. [tex]\frac{1}{9}[/tex]
B. [tex]\frac{2}{9}[/tex]
C. [tex]\frac{1}{3}[/tex]
D. [tex]\frac{1}{18}[/tex]



Answer :

To determine the probability of spinning one Green and one Blue when a spinner with 3 equal sections (orange, green, and blue) is spun twice, follow these steps:

1. Identify the individual probabilities of each color:
- Since the spinner has 3 equal sections, the probability of landing on any one section in a single spin is [tex]\(\frac{1}{3}\)[/tex].

2. Find the probability of spinning Green in one spin:
- The probability is [tex]\(\frac{1}{3}\)[/tex].

3. Find the probability of spinning Blue in one spin:
- Similarly, the probability is [tex]\(\frac{1}{3}\)[/tex].

4. Calculate the probability of spinning one Green and one Blue in two spins:
- There are two favorable outcomes:
- First spin Green and second spin Blue.
- First spin Blue and second spin Green.

- The probability of the first scenario (Green followed by Blue) is:
[tex]\[ P(\text{Green then Blue}) = \left(\frac{1}{3}\right) \times \left(\frac{1}{3}\right) = \frac{1}{9} \][/tex]

- The probability of the second scenario (Blue followed by Green) is:
[tex]\[ P(\text{Blue then Green}) = \left(\frac{1}{3}\right) \times \left(\frac{1}{3}\right) = \frac{1}{9} \][/tex]

- Adding these probabilities to account for both favorable sequences:
[tex]\[ P(\text{one Green and one Blue}) = \frac{1}{9} + \frac{1}{9} = \frac{2}{9} \][/tex]

Thus, the probability [tex]\(P\)[/tex] of spinning one Green and one Blue in two spins is [tex]\(\frac{2}{9}\)[/tex].

So, the correct answer is:
[tex]\[ \boxed{\frac{2}{9}} \][/tex]