Determine the upper quartile, lower quartile, and interquartile range (IQR) for the following set of data: 6, 7, 9, 10, 12, 15, 25, 29. Choose the correct answer. a
The upper quartile is 25.
b
The IQR is 18.
c
The lower quartile is 7.
d
The IQR is 12.

Of the following, which statement or statements accurately reflect a way in which credit can be safer than cash? i. if your credit card gets stolen, you can cancel it and get your money back. ii. it is harder to lose a single credit card than a large number of bills. iii. if a merchant does not honor the agreement, you can call the credit company and dispute the charges. a. i and iii b. ii only c. iii only d. i, ii, and iii