Which of the following is always true for all probability density functions of continuous random variables?
A. The probability at any single point is zero.
B. They contain an uncountable number of possible values.
C. The total area under the density function f(x) equals 1
D. All of these choices are true.
Analysis:
A. Incorrect. All of these choices are true.
B. Incorrect. All of these choices are true.
C. Incorrect. All of these choices are true.
D. Correct. All of these choices are true.
ANSWER : D
You might also like to view...
Which of the following statements is true regarding virtue as a reason for studying ethics?
A. Few people have learned values that steer them toward making right ethical decisions. B. Virtue means that doing what is ethical is a smart thing to do for profits. C. Most people have learned values that steer them toward making right ethical decisions. D. Most people have learned values that steer them toward making wrong ethical decisions.
The managers of a business prepare financial statements to present meaningful information about that business's activities to external users. Who are the external users?
a. owners b. lenders c. regulators d. tax authorities e. all of the above
Intensive distribution is typically associated with low-cost ________.
A. industrial goods B. heavy equipment C. machine tools D. manufacturing tools E. convenience goods
________ refers to how long it takes a company to pay its creditors.
What will be an ideal response?