A confounding variable is an extraneous variable that is related to your independent variable and might affect your dependent variable. In an ideal study, there will be no confounding variables.
For example, student accounts have a limit of $100 limit per day, while non-business accounts usually are limited to $500 withdrawals a day. For business accounts, the bank offers $1000 withdrawals in one day. Chase also offers customers a withdrawal limit of $1000 every 24 hours.
The daily withdrawal limit per day from an ATM in India varies with the bank and customer profile. Some banks give Rs 10,000 as the default limit and some Rs 25,000. Banks can also offer higher withdrawal limits to customers maintaining higher balances and it may also go upto Rs 1 lakh. Side Info: