Solve the problem.A data set consists of 132 test scores. Over a long period it has been found that the mean and standard deviation for these scores are known and that the scores are normally distributed. How many scores within this data set should lie between the mean and one standard deviations above the mean? Round your answer to the nearest whole number.
A. 90
B. 45
C. 63
D. 66
Answer: B
You might also like to view...
Solve the problem.A boat heads S 50° W propelled by a force of 600 lb. A wind from N 42° W exerts a force of 125 lb on the boat. How large is the resultant force, and in what direction is the boat moving?
A. 609 lb, S 62° W B. 652 lb, S 38° W C. 652 lb, S 62° W D. 609 lb, S 38° W
Given the figure with EI || SF, midpoints E and I, EV = 7 cm, VI = 8.5 cm, EI = 10 cm, ?VEI = 57° and ?EVI = 81°. Find the following.
(a) VS
(b) FS
(c) ?S
(d) ?F
Write the number in scientific notation as it would be displayed on a calculator.164
A. 1.64E3 B. 1.64E1 C. 1.64E2 D. 1.64E-2
Write an equation of the tangent line to the graph of y = f(x) at the point on the graph where x has the indicated value.f(x) = (2x2 + 3x - 2)(-4x + 1), x = 0
A. y = 
x - 2
B. y = 
x + 2
C. y = 11x + 2
D. y = 11x - 2