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



The product is -8*5=-40& sum is -8+5=-3
she is incorrect the numbers listed above is neither arithmetic or geometric its quadratic sequence . its addition being shown
2+1=3
3+2=5
5+3=8
8+4=12
hope i broke it down enough for you're understanding