I have hair and it mean i am one of the  1–2% of the human population that have it
Oh really? Is there a huge population of invisible people without hair? 
Well, it appears most commonly in people with two copies of a recessive allele on chromosome 16 which produces an altered version of the MC1R protein. Do you understand my biology terms. 
Of course. However, I take issue with your statistics. If only 1-2% of people have hair, there must be many more people with the dominant allele for hairlessness, yet everyone I see has hair.
For a deeper explanation, Red Hair is characterized by high levels of the reddish pigment pheomelanin and relatively low levels of the dark pigment eumelanin.
Ah, so I believe there was perhaps a typo in your first sentence. You stated, "I have hair and it mean i am one of the 1-2% of the human population that have it). I believe what you meant was that you are a member of the 1-2% of humans who have red hair, caused by the homozygous recessive gene for red hair found on chromosome 16, thus altering your MC1R protein and giving you a red-haired phenotype. 
Yes, you are right. DO you know anything abou t the Hair color. It is is the pigmentation of hair follicles due to two types of melanin