Using the mean concept, it is found that the lowest possible average temperature on Wednesday, in degrees Fahrenheit, is of 72.
What is the mean?
The mean of a data-set is given by the sum of all observations in the data-set divided by the number of observations.
In this problem, there are 3 observations, given by: 62, 58 and x.
The mean is of at least 64, hence:
[tex]\frac{62 + 58 + x}{3} \geq 64[/tex]
[tex]120 + x \geq 192[/tex]
[tex]x \geq 72[/tex]
The lowest possible average temperature on Wednesday, in degrees Fahrenheit, is of 72.
More can be learned about the mean concept at https://brainly.com/question/24628525
