Determine whether the collection is well-defined.The collection of the best mystery books in the library.
A. Well-defined
B. Not well-defined
Answer: B
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An experiment consists of selecting a card from a standard deck of playing cards and noting whether the card is black (B) or red (R). Describe an appropriate sample space for this experiment. ?
A. {BR, RB} B. {R, R} C. {R, B, B, R} D. {B, R} E. {B, B}
Translate the following into an equation where x represents the unknown number. Then solve the equation for x.
times a number is 8.
A. 5x = 8, x = 12
B. 5x = 8, x = 
C. 
x = 8, x = 40
D. 
x = 8, x = 1
Write the reciprocal of the number.- 
A. 
B. 16
C. -16
D. - 
Consider the situation. A political party holds a national convention with 1,100 delegates. At the convention, five persons (which we will call A, B, C, D, and E) have been nominated as the party's presidential candidate. After the speeches and hoopla, the delegates are asked to rank all five candidates according to his or her choice. However, before the vote, caucuses have narrowed the choices down to six different possibilities. The results of the first ballot are shown (choices, followed by the number of votes): (ADEBC) (BEDCA) (CBEDA) 330 270 200 (DCEBA) (EBDCA) (ECDBA) 180 90 30 ? How many possible rankings are there?
Fill in the blank(s) with the appropriate word(s).