In regression analysis, the variable that is being predicted is the

A) dependent variable.
B) independent variable.
C) intercept variable.
D) error variable.

The random variable x is defined as the number of mistakes made by a typist on a randomly chosen page of a physics thesis. The probability distribution follows.
Round your answer to four decimal places, if necessary.
a. What is E(x)?
______________
b. Find
.
______________
c. Find P(x < 1).
______________
d. Find
.
______________
e. In what fraction of pages in the thesis would the number of mistakes made be within two standard deviations of the mean?
______________

The long form,also called a 1040,is the only form that a filer can use if he or she has interest income from dividends,alimony,or prize money.

An invoice for $6,000 dated September 1 with terms 2/10, 1½/20, n/30 is received in the mail on September 3^rd. A payment of $3,000 is made on September 12^th. What is the outstanding balance?

A) $3,000
B) $2,955
C) $2,940
D) $3,060
E) $3,045

Simplify the rational expression. $\frac{9x^2-36x}{72x^2}$

A) $\frac{9x^2-4}{8x}$
B) $\frac{x-4}{8x}$
C) $\frac{x-9}{8}$
D) $\frac{1-4x}{8x}$
E) $\frac{1-36x}{8}$

Decide whether the system $\{\begin{array}{c}3x-6y=6\\ -12x+24y=-24\end{array}$ is consistent or inconsistent.

A) inconsistent
B) consistent

Gloria has just made her ninth annual $2,000 contribution to her Tax-Free Savings Account (TFSA). She now plans to make semi-annual contributions of $2,000. The first contribution will be made six months from now. How much will she have in her TFSA 15 years from now if the plan has earned and will continue to earn 5% compounded quarterly?