The correct label could be MN or NM
It doesn't matter because the line could be going left or right.
Hope this helps!
Answer:
4 people
Step-by-step explanation:
The number of people that got the score 5. 4 people have achieved the score 5.
Answer:
it is .42 how I know is because I looked at the graph
Step-by-step explanation:
first I look at the school side
next I look at the car and get rid of it because it says middle school
then I get rid of bus and other
Answer:


The confidence interval of standard deviation is:
to 
Step-by-step explanation:
Given

See attachment for the formatted data
Solving (a): The mean
This is calculated as:

So, we have:




Solving (b): The standard deviation
This is calculated as:




--- approximated
Solving (c): 95% confidence interval of standard deviation
We have:

So:



Calculate the degree of freedom (df)



Determine the critical value at row
and columns
and 
So, we have:
---- at 
--- at 
So, the confidence interval of the standard deviation is:
to 
to 
to 
to 