Rejecting the null hypothesis means that the sample outcome is very unlikely to have occurred if h0 is true

What is the interquartile range (iqr) of the data set represented by this box plot?

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

Given the equation −4  = 12, solve for x and identify if it is an extraneous solution.