Use the frequency table below to answer the following question(s).
The standard deviation of this data set is
A. 1.581.
B. 1.732.
C. 1.225.
D. 1.414.
E. none of these
Answer: D
You might also like to view...
Find the slope of the linear regression equation for the following table of values. x 1.02 3.43 4.66 6.76 y 24.71 14.77 10.09 1.59
What will be an ideal response?
Solve the problem.Ron throws a ball straight up with an initial speed of 70 feet per second from a height of 5 feet. Find parametric equations that describe the motion of the ball as a function of time. How long is the ball in the air? When is the ball at its maximum height? What is the maximum height of the ball?
A. x = 0, y = -16t2 + 70t + 5 4.445 sec, 2.188 sec, 81.563 feet B. x = 0, y = -16t2 + 70t + 5 8.605 sec, 2.188 sec, 597.255 feet C. x = 0, y = -16t2 + 70t + 5 8.891 sec, 2.188 sec, 76.563 feet D. x = 0, y = -16t2 + 70t + 5 4.302 sec, 2.188 sec, 5.025 feet
Solve the system by the substitution method.2x2 + 4y2 = 36y = x + 3
A. 
B. 
C. 
D. 
Combine like terms.-7x3y4 + 8x3y4 - 9x3y4 - 4x3y4 + 8x3y4
A. Can't be simplified B. 10x3y4 C. -20x3y4 D. -4x3y4