Answer:
Mary is incorrect
Step-by-step explanation:
We are given the following in the question:
Number of times the spinner landed on green color = 9
P(Green) =
[tex]\dfrac{1}{6}[/tex]
Mary claimed that there must be 45 trials.
[tex]\text{Probability} = \displaystyle\frac{\text{Number of favourable outcomes}}{\text{Total number of outcomes}}[/tex]
P(Green) =
[tex]\dfrac{\text{Number of times spinner landed on green}}{\text{Total number of trials}}\\\\\Rightarrow \dfrac{9}{x}=\dfrac{1}{6}\\\\\Rightarrow x = 9\times 6 = 54[/tex]
There are 54 trials in the experiment and not 45 trials. Thus, Mary is incorrect.
Answer:
A
Step-by-step explanation:
I got it correct on the test
