Identity - An identity is who you are.
statistics - Statistics are facts which are obtained from analysing information expressed in numbers, for example information about the number of times that something happens.
nationality - If you have a nationality of a particular country, you were born there or have the legal right to be a citizen.
diversity - The diversity of something is the fact that it contains many different elements.
major - You use major when you want to desribe something that is more important, serious than other things in a group or situatio.
carnival - It's a public festival during which people play music and sometimes dance in the streets.
confident - If someone is confident about something, he is certain that it will happen in the way, he wants to.