U find 1.5 on the bottom line and when u find it, go up until u reach 2 on the side line
This does not make sense, but with the logic, it would be B. Please comment to clarify so I can make changes if needed.
ANSWER: B
Answer:

Step-by-step explanation:
From the question we are told that:
Sample mean 1 
Sample mean 1 
Sample standard deviation 1 
Sample standard deviation 1 
Generally the equation for Point estimate is mathematically given by



Answer:
a≥0
Step-by-step explanation:
The equation on the left is absolute value so all values plugged in will be positive but on the other side if a negative was plugged in it would still be negative and thus result in a lower sum than the other side. For example:
|-2+5|=-2+5
7=3
this is untrue.
the equation would only be true if the a values were positive.