Answer:
B.
Step-by-step explanation:
A goes up by 1
C goes up by 8
D goes up by 5
But B increments by 2x (2 times)
Answer:
points go at -3 on the line and at 9 one above the line
Step-by-step explanation:
Draw a cartesian graph and draw the points in , then see where c should be to get a right angled triangle
Answer:
12 feet of flooring cost $51
Step-by-step explanation:
68/16 = 4.25
4.25 x 12 = 51
Answer:
The margin of error is of 0.3012, and it means that we should be 99% confident that the population mean would be within 0.3012 of the sample mean.
Step-by-step explanation:
Margin of error

In which
is the standard deviation and n is the size of the sample.
Standard deviation of 1.3
This means that 
She surveys 124 families
This means that 
Margin of error and meaning:



The margin of error is of 0.3012, and it means that we should be 99% confident that the population mean would be within 0.3012 of the sample mean.