To determine which statement is true, let's analyze each option:
- "There will be 3 dots above 2."
- "There will be 3 dots above 2."
- "There will be the same number of dots above 2 1/2 as there are above 3."
- "There will be the same number of dots above 2 1/2 as there are above 3."
- "Corrine measured a total of 8 crayons."
- "Corrine measured a total of 8 crayons."
- "The longest crayon is 3 inches long."
Based on the repeated statements, options 1 and 2 are identical, as are options 3 and 4, as well as options 5 and 6.
Since there is no context provided that contradicts any of the statements, and assuming all are meant to be taken at face value without additional information:
- The first two statements seem to make an arbitrary claim about dots, and without context, we cannot ascertain their truth.
- The next two statements claim a relationship about dots above two numbers, again lacking context.
- The last two statements mention Corrine’s crayons. If it's a factual statement that she measured 8 crayons, then it’s reasonable to assume it's true without additional context.
- The last statement about the longest crayon being 3 inches could also be true if we have no conflicting information.
Given that we cannot assess the truth of the options related to dots and the meaning isn’t clear without context:
The more straightforward statements are options 5 and 6, claiming Corrine measured a total of 8 crayons.
Thus, if one of the statements must be true depending on standard counting or measurement, then the most plausible true statement is:
"Corrine measured a total of 8 crayons."