Answer:
2.0
Step-by-step explanation:
Couldn't really understnd what you wrote but I'll assume it's the standard deviation of a fair, 7-sided die
The standard deviation is just the square root of the variance (which is just the second moment minus the first moment squared)
The first moment (AKA the average is..)

The second moment is..


Answer:
-0.9
Step-by-step explanation:
-9/ 10 = -0.9
Michael worked 4.5 hours. 65.75 - 36.50 = 29.25, therefore, Michael made $29.25 not including tips. 29.25/6.50 = 4.5
Answer:
Find the complete table in attached file.
Step-by-step explanation:
Find the Incomplete table in attached file
Given:
A car travels 55 miles per hour for 2 hours.
So the speed of the car 55 miles per hour is constant for 2 hours.
Using speed formula.

Second row.
From the second row of the table
and speed is constant
, so we need to find only distance.




Third row.
From the third row of the table
and speed is constant
, so we need to find only distance.




Fourth row.
From the fourth row of the table
and speed is constant
, so we need to find time.




Therefore we complete the table from the above calculation.