Solve the problem.Helen Weller invested $14,000 in an account that pays 3% simple interest. How much additional money must be invested in an account that pays 6% simple interest so that the average return on the two investments amounts to 4%?
A. $11,000
B. $14,000
C. $10,000
D. $7000
Answer: D
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Determine whether the following is always true or not always true. Given reasons for your answers.c(u × v) = cu × cv (any number c)
What will be an ideal response?
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 error is most likely a result of
A. a confounding variable. B. sampling bias. C. sampling variability. D. nonresponse bias. E. none of these
Determine whether the graph is the graph of a function.
A. yes B. no
Solve.
- 
= 1
A. - 
B. 1
C. 
D. 