Yes, several. I would hazard to say that, in fact, most are.
It reads the card to see if the card is valid or not if tje crad is n ot valid it rejects the crad but if the crad is accepted the ouput 1 turns on and starts the system of withdrawing the money. This is a very basic answer. :(
Sampling techniques can provide statistically reliable and valid survey results except haphazard sampling.
The Romanian banknotes from 2001 are not valid in 2014.
To have a valid scientific sample of religious people in your town, you would need to ensure random selection of participants, have a sufficient sample size, use standardized survey questions, and gather data in a consistent and unbiased manner.
no
Yes, a lease can be valid even if no money is exchanged, as long as there is a mutual agreement between the parties involved regarding the terms and conditions of the lease.
In most cases, a contract is still valid even if earnest money is not provided. Earnest money is not required for a contract to be legally binding, but it can serve as a sign of good faith from the buyer.
You can't. Starcraft 2 is an online game which you need a valid license to play.
It can substantiate your statements, if the inference is valid.
Scientists use the data from an experiment to evaluate the hypothesis and draw a valid conclusion.
The survey is biased because the sample consisted only of people who already exercise.
It depends on the contract If you are borrowing from a bank or other valid institution I will guaranty the contract will be valid and enforceable. If you are borrowing from your local loan shark, the "contract" may not be valid, but do you want to take the chance?