Answer:
The sum is equal to 
Step-by-step explanation:
we know that
The formula to calculate the sum is equal to

In this problem
-----> number of terms
a1 is the first term

an is the last term

substitute

The second option:
2(8) - 3(1) = 13, which is greater than 12
16.45 is equal to 16.450, so 16.454 is grater.
Hope this helps!
Answer:
PROPORTION.
Step-by-step explanation:
The relative frequency in a relative frequency histogram refers to PROPORTION.
A relative frequency histogram uses the same information as a frequency histogram but compares each class interval with the number of items. The difference between frequency and relative frequency histogram is that the vertical axes uses the relative or proportional frequency rather than simple frequency