Answer:
Sample mean = 30
Standard deviation = 10
Step-by-step explanation:
A system with two linear equations can be modeled with the information given in order to find the sample mean (M) and the standard deviation (s):

Solving the linear system:

The sample mean is 30 while the standard deviation is 10.
Change r
---------- = ------- you use this formula, then cross multiply.
original 100
56-45 =change original=45
Answer:
the 3rd one is the graph answer
Answer:
to blurry
Step-by-step explanation:
Answer:2.25
Step-by-step explanation:it just is