Answer:
a) 1/3
b) 4
Explanation:
According to the laws of probability, there are 3 possible things that will happen when Aleena spins the spinner.
The spinner will land on either 1, 2 or 3. There is a 1/3 chance of the spinner choosing either number. So if Aleena spins 12 times, there is a 1/3 chance for her getting a 2, so every 3rd time Aleena spins, she will receive a 2.