If intelligence = knowledge + experience, what makes a person less intelligent?

B33R!

No, seriously. Both, if you're looking at it as a mathematical equation.
I = K + E
K = I - E
E = I - K

Lack of knowledge certainly does not make a person less intelligent. No one knows everything in this world, you know. Knowledge and experience can always be learned and gained respectively. No one is borned with these items. In my opinion, what make a person less intellgient are
1) Does not know how to apply knowledge
2) Not willing to try and only *try* and then claim he/she can't do it.

BOTH.Your equation is insufficient I suggest, intelligence =knowledge + experience + common sense + faith- the courage to do.

I think if you examine it carefully you will discover that the equation is not quite so simple. Musical ability, artistic ability computation attention to detail, even awareness and the capability to experience being present in the moment are among the many other human capacities which combine together to form the whole that we typically describe as 'intelligence'. Intelligence includes the capacity of memory and the ability to forget incorrect or invalid information as well. This part could be seen as a kind of ratio of experience to the capacity to use it effectively. Then there are the organizational skills associated with knowledge. You've also left out the ability of abstract reasoning or logic, and basic mathematical processing and the understanding of spacial relationships as well as a many other kinds of non-academic intelligence like mechanical aptitude and cooking ability and hunting or fishing skills and so on... Intelligence is not really a simple scalar value that can be written on your forehead - it changes depending on the condition of the individual based on a myriad of factors - like fatigue and health and nutrition as well. I recommend you widen the scope of your question and explore what you are really asking. the answer is not a simple matter of selecting choice "a" or "b".

Lack of knowledge. Lack of experience. Assuming that we're all born with a certain inherited IQ, I guess that has an impact, too.

I believe your formula is flawed. Knowledge can be gained by experience. Intelligence perhaps is the ABILITY. Not the sum.

Intelligence is the ability to learn, not the actual learning. How quickly can you figure things out, how well do you read and comprehend. Things like that determine your level of intelligence. Knowledge comes through experience. You can be highly intelligent, and not be knowledgeable, or experienced.

not using the knowledge and experience in the correct way in stead of being selfish and uncaring the actual statment encompasses it all the less intelligent person is the one who walks aways runs and hides doesnt stand up to there responsibilities and take the easy option out we are all born the same and all amass the same infomation but we are all capable of kindness or gross acts its how you live with yourself afterwards that counts

Knowledge+experience is NOT intelligence, it's erudition. You can have very unintelligent people with slow brain-processing time through sheer effort become well-educated and knowledgeable, or you can have hyperintelligent people work at some blue-collar job all their life and learn very little about the world. But they are great at quickly solving mental puzzles.

Your definition is flawed. Intelligence does not equal just knowledge plus experience. It also involves ability. One's ability has a huge influence on the acquisition of knowledge and the benefits of experience.

It is both - lack of knowledge and lack of experience.