The range of swim times is 5.6 hr. The range of a set of data is the difference between the highest and lowest values in the set. To find the range, first order the data from least to greatest. Then subtract the smallest value from the largest value in the set.
Every month that you make a partial payment, your credit card account will fall further and further past due. You will go from 30 to 60 to 90 days past due. This information will be reported on your credit file and your credit score will be lowered.
How those late payments affect your credit score will depend on three things. A pattern of missed payments will do more damage than a single, isolated event. Similarly, a payment that's late by 90 days or more will generally do more harm than a 30- or 60-day late payment.