Answer:
C
Step-by-step explanation:
slope is the change of y / change of x
.
we can pick any points and find the changes in y and x
lets pick (0 , 0) and (5 , 6) .
the change of y = 6-0 = 6.
the change of x = 5-0 = 5.
so the slope of the line is 6/5
.
Answer:
n=97
Step-by-step explanation:
The margin of error is the range of values below and above the sample statistic in a confidence interval.
Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".
Assuming the X follows a normal distribution

We know that the margin of error for a confidence interval is given by:
(1)
The next step would be find the value of
,
and 
Using the normal standard table, excel or a calculator we see that:

If we solve for n from formula (1) we got:


And we have everything to replace into the formula:

And if we round up the answer we see that the value of n to ensure the margin of error required
is n=97.
Answer:
{x,y}={ 11
/69 ,− 11
/10 }
Step-by-step explanation:
Here u go, I left the bottom boxes so u could have some practice :)