The standard deviation of a particular sample is equal to the standard deviation divided by the square root of the sample size. That is,
The mean of a particular sample is equal to the mean of the set the sample was taken from. That is,
Answer:
x=9.8
Step-by-step explanation:
Answer:
1/2
Step-by-step explanation:
To find the slope given two points, use the slope formula
m= ( y2-y1)/(x2-x1)
= ( 5-1)/(2--6)
= (5-1)/(2+6)
= 4/8
= 1/2
Answer:
E. x-coordinate of point C
Step-by-step explanation:
Consider the diagram of the unit circle which has been drawn and attached.
Using a calculator in radians, 
On the unit circle, out of points A, B and C, the point -1 is at point C.
Point C is located at (-1,0).
Therefore, 
is the x-coordinate of point C.
The correct option is E.
