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.
Answer:
100000
Step-by-step explanation:
The smallest 6 digit number is 100000
Answer:
The volume is 
Step-by-step explanation:
we know that
The volume of the sphere is equal to

we have
----> the radius is half the diameter

substitute the values

. . Hmmmmmmmmm, I wonder what the answer could be XD