Solve the application and answer with a complete sentence.The total length of a boat race is 
of a mile. Chloe has completed 
of a mile. How much does she have left to complete?
A. She has 
of a mile left.
B. She has 
of a mile left.
C. She has 
of a mile left.
D. She has 
of a mile left.
Answer: D
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As part of a statistics project, a 6th grade teacher brings to class a container with 300 red marbles and 500 white marbles which are thoroughly mixed. To figure out how many marbles in the container are red without actually counting them all, a student randomly draws 40 marbles from the container. Of the 40 marbles drawn, 16 are red.The sampling frame for this survey
A. is larger than the target population. B. contains members that are not in the target population. C. is smaller than the target population. D. is the same as the target population. E. none of these
Simplify the algebraic expression.5(x - 3) + 8x
A. 13x + 15 B. -3x - 15 C. 13x - 15 D. 3x + 15
Use the union rule to answer the question.If n(B) = 48, n(A ? B) = 9, and n(A ? B) = 84; what is n(A)?
A. 45 B. 36 C. 47 D. 43
Solve the problem.The following graph shows the private, public and total national school enrollment for students for select years from 1980 through 2010.
1980199020002010Yeari) How is the graph for total school enrollment, T, determined from the graph of the private enrollment, r, and the public enrollment, u?ii) During which 10-year period did the total number of students enrolled increase the least?iii) During which 10-year period did the total number of students enrolled increase the most?
A.
| i) | T is the sum of r and u. |
iii) 1980-1990
B.
| i) | T is the difference of r and u. |
iii) 2000-2010
C.
| i) | T is the sum of r and u. |
iii) 2000-2010
D.
| i) | T is the sum of r and u. |
iii) 1990-2000