If P(A ∩ B) = 0,

A) P(A) + P(B) = 1.
B) either P(A) = 0 or P(B) = 0.
C) A and B are mutually exclusive events.
D) A and B are independent events.

One problem with writing research results for news media is that research details get dropped.

In a multiple regression analysis involving 5 independent variables and 30 observations, SSR = 380 and SSE = 45.The multiple coefficient of determination is

A) .80.
B) .89.
C) .25.
D) .11.

The area to the right of a chi-square value is 0.01. For 8 degrees of freedom, the table value is 1.64648.

Mark, Ben, and Tanya own 4,250; 2,550; and 5,950 shares, respectively, of MBT Inc. What is the ratio of their share holdings in lowest terms?

An annuity consists of payments of $700 made at the beginning of every quarter for 5 years. If the annuity earns 8% compounded semiannually, calculate present value.