Find the expected value for the random variable.
A. 9
B. 7.28
C. 7.92
D. 7.68
Answer: D
Mathematics
You might also like to view...
Solve the problem.At Loop Junior College, the mean grade point average (gpa) of the current student body is 
with a standard deviation of 0.64. Compute the gpa's of each student to two decimal places.A gpa with a z-score of 0.2.A gpa with a z-score of -2.5.
A. 2.56, 5.26 B. 2.89, 1.16 C. 2.89, 0.26 D. 3.40, 2.12
Mathematics
Decide whether the relation is a function.{(-1, 4), (1, 2), (4, 8), (8, 7), (11, 2)}
A. Function B. Not a function
Mathematics
Find the difference. Simplify the result.
- 
A. x + 8
B. 
C. 
D. 
Mathematics
Perform the indicated operation.(2x5y3)(-7x4y)
A. -14x9y3 B. -14x9y C. -14x9y4 D. -14x20y3
Mathematics