Answer:

-- Sample Variance
--- Sample Standard Deviation
Step-by-step explanation:
Given


Solving (a): The sample mean

So:



Solving (b): Sample variance (s^2)
This is calculated as:

Where:

So:



Solving (c): Sample Standard Deviation (s)
This is calculated as:



Cost = (3,500) * (1.04)^years
Cost = (3,500) * (1.04)^4
<span><span><span>Cost = (3,500) * 1.16985856
</span>
</span>
</span>
<span><span>Cost = </span>4,094.50</span>
Answer:
Mars is 6.79 X 10^6 m
Step-by-step explanation:
Mars is at a distance of 206,600,000 km from the Sun at perihelion At aphelion, Earth is at a distance of 152,100,000 km from the Sun. This is a difference of 54,500,000 km, or 34,000,000 miles.
Table C represents a function
This is because each x value has only one y value. For the other tables, the x values of 4, 9, and 8 have 2 different y values.
This is subtraction an the answer would be 6