Why is prejudice said to be irrational

Prejudice is said to be irrational mainly because it's biased. It's a harsh judge of character without knowing the persons personality. This is unprofessional, unkind, and downright wrong. If this did not answer a question, I am sorry. Though, keep in mind that this is very opinionated. 

The electoral college consists of 538 electors. a majority of 270 electoral votes is required to elect  the president. your state's entitled allotment of electors equals the number of members in its congressional delegation: one for each member in the house of representatives plus two for yoursenators.congress does the electoral college represent