Answer:
Step-by-step explanation:
The answer is 1.25
I’m not sure about number 1 but the answer for number 2 is
-4 1/2, -4.2, -4, ,0, 4

These numbers are 12 and 14.
Answer:
It becomes lower
Step-by-step explanation:
This is because as the lowest value becomes larger, <em>one of the values becomes closer to the mean</em>, and as more numbers are closer to the mean, the standard deviation becomes lower.