Definition: Interquartile range is the measure of dispersion which is the difference in the values of two quartiles. The Lower Quartile is denoted as Q 1 and the Upper Quartile is denoted as Q 3.
What is an eCheck? Essentially, an eCheck or electronic check is a form of online payment where money is electronically withdrawn from the payerâs checking account, transferred over the ACH network, and deposited into the payeeâs checking account.
Payments, ACH, eCheck, electronic checks. Credit cards are the default payment method for online businesses, but a new alternative is emerging to give them a run for their money. eChecks enable your customers to pay you directly from their bank account, using their secure online banking login.