Final answer:
The probability of randomly selecting someone who does not believe that some people see the future in their dreams is 43.3%.
Step-by-step explanation:
The probability of randomly selecting someone who does not believe that some people see the future in their dreams can be determined by subtracting the percentage of people who do believe from 100%.
In this case, the percentage of people who do believe is 56.7%, so the percentage of people who do not believe is 100% - 56.7% = 43.3%.
Therefore, the probability of randomly selecting someone who does not believe is 43.3%.