The mean of a probability distribution is called its expected value. a. true b. false

Asequence of numbers begins with 12 and progresses geometrically. each number is the previous number divided by 2. which value can be used as the common ratio in an explicit formula that represents the sequence? 1/2 2 6 12

Find the value of x for which the lines are parallel.

Is the square root of 4 plus the square root of 16 rational?