Answer:
(a) The proportion is 61.23%
(b) It is more than the historical 57%
Explanation:
This question has missing details, and they are:
---- The Sample Adults
-- Those that believe global warming was real
Solving (a): The proportion of those that believe.
This is calculated as:

Substitute values for x and n


Express as percentage


Solving (b) More or less than 57%
By comparison:

Hence, it is more than the historical 57%