Okay, so you are talking about exponents, so what you are talking about is 2², to find the answer to the exponent you multiply the same number as many times as the exponent (little number) says, so in here we are going to multiply 2 x 2 and the answer is 4. So 2 to the power of 2 is 4.
3.14 - 3a Radians
Because
180o = 3.14 radian
It is statistical because there can be a variety of answers.
