150 students in a math class take the final exam. The scores on the exam have an approximately normal distribution with mean ? = 65 and standard deviation ? = 10.A score of 85 corresponds to a standardized value of
A. 2.
B. 8.5.
C. 20.
D. -2.
E. none of these
Answer: A
Mathematics
You might also like to view...
Subtract.92,178 - 5856
A. 86,322 B. 90,322 C. 86,022 D. 94,142
Mathematics
Use a graphing calculator to perform the indicated multiplication.
A. 
B. 
C. 
D. 
Mathematics
Write in exponential notation. Do not evaluate.(5)(5)(5)
A. 3 ? 5 B. 51 C. 35 D. 53
Mathematics
Solve the problem.If a rock falls from a height of 20 meters on Earth, the height H (in meters) after x seconds is approximately H(x) = 20 - 4.9x2.When does the rock strike the ground? Round to the nearest hundredth, if necessary.
A. 2.02 sec B. 4.08 sec C. 0.83 sec D. 0.91 sec
Mathematics