A Jewish person would call him a "mensch" - one of the most complimentary words in the Yiddish language. It means "a real human being".
A woman.
How about "statistician"? But I admit that the spelling is a challenge to get right !
You cannot make someone admit they are wrong. You know you are right; they are wrong and that is all you need to know. If this person has done something terrible then try to get them to be responsible for their own actions and if they do not then break away from this person. If it's a crime then report it to the police. If it's gossip that has hurt someone then the person who will not admit to doing the wrong will pay for their mistakes eventually.
haramtia
you have to admit it to them!!!
Someone who can't stand to be wrong is often referred to as being "defensive" or "inflexible." This person may exhibit traits of arrogance or stubbornness, frequently insisting on their viewpoint and resisting opposing opinions. Additionally, they might show a lack of willingness to accept constructive criticism or admit mistakes. Such behavior can hinder personal growth and healthy communication.
It can be very difficult to get someone to admit that they need treatment for an addiction problem. Unless an addict actually wants help, it is unlikely they will admit they need treatment, or even admit they have a problem.
admit your mistakes and move on
Errata
A person who repeatedly makes mistakes can be called an "error-prone" individual or "someone prone to making mistakes." They may also be referred to as "careless" or "reckless" if their mistakes are due to a lack of attention or consideration.
Have you tried an intervention?
Outtakes are the part of a film that is removed because of mistakes in the production.