Answer:

In order to calculate the sample deviation we need to calculate the mean given by:

And replacing we got:

And the standard deviation can be calculated with this formula:

And replacing we got:

Step-by-step explanation:
For this case we have the following data given:
281, 269, 259, 265, 256, 259, 266
The range is defined as:

And if we replace we got:

In order to calculate the sample deviation we need to calculate the mean given by:

And replacing we got:

And the standard deviation can be calculated with this formula"

And replacing we got:

In order to change this into slope-intercept form you need to distribute the .-2 into the parenthesis and then add the 12 to the right side. Let me know if that helps!<span />
Answer: 4.8 miles a day
Step-by-step explanation:
Goal distance 23.2Miles
He rides 4miles, he is left with 23.2- 4= 19.2
Divide 19.2 into 4 days
Answer:
Her work includes putting labels on 750 books. How many minutes will she need to finish labeling all books if If she takes no breaks and
Step-by-step explanation:
Answer:
Step-by-step explanation:
Given

ball is dropped from a height of 
therefore 

Time taken to fall half the distance to the ground level i.e. 

arranging we get



(b)Time taken to fall
i.e. h=0



