The graphs to use are box plots, histogram and dot plots
<h3>How to determine the graph?</h3>
From the question, the most important factors are:
- Shape of distribution
- Spread of data
Using the box plots, histogram and dot plots, one would see the shape and the spread.
While the stem and leaf plot would show specific data values
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Required Equation is 
Given: A line passing through
and 
Slope =
= 
Equation of line is:

Where b is y intercept
for value of b

⇒ b = -1
and Equation of line is:

For another parallel line that passes through the point (-3,0)


c = 2
then the equation is:

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Answer:
2.5% ?
Step-by-step explanation:
.025 as percentage is 2.5%