MATH 1272 Lecture 1: 8.5- Probability
Document Summary
Random variable: something that takes a random numerical value. Equals the number of cats a randomly chosen umm professor professor has. Or the # of times a coin lands heads if flipped 15 times. Or # of apples on a randomly chosen tree. = height of a randomly selected person or age of a randomly selected cat. Every continuous random variable x has an associated probability dentist function f related by. The probability x takes a value in [a,b] Probability functions are 0 on all real numbers and. Suppose the probability density function for waiting for coffee at higbes is. To find a value of c so that a function is a density function, set the equation with c equal to the on the bounds specified in the problem. Note- if x is a real value with normal (mu, sigma) then e(x)= mu.
