250 students in a math class take the final exam. The scores on the exam have an approximately normal distribution with mean ? = 75 and standard deviation ? = 10.A score of 95 corresponds to a standardized value of
A. 8.5.
B. -2.
C. 2.
D. 20.
E. none of these
Answer: C
Mathematics
You might also like to view...
Solve the problem.A rectangular piece of cardboard measuring 17 inches by 30 inches is to be made into a box with an open top by cutting equal size squares from each corner and folding up the sides. Let x represent the length of a side of each such square. For what value of x will the volume be a maximum? If necessary, round to 2 decimal places.
A. 14.7 in. B. 24.35 in. C. 12.18 in. D. 3.49 in.
Mathematics
Represent the quantity with an integer.The team gave up 16 points.
A. +16 B. -16
Mathematics
Solve the quadratic equation using completing the square.2x2 + 2x = 24
A. {-12, 1} B. {-4, 3} C. {-4, 6} D. {4, -3}
Mathematics
Find the real solutions of the equation.(3x - 7)1/2 = 4
A. {
}
B. {
}
C. {
}
D. no real solution
Mathematics