nConsider an experiment where one coin is flipped 3 times for 8 trials.

Descrete Probability : Basic Properties

0 <= P(X=x) <= 1

S P(X=x) = 1

Relative Frequency Histogram

The width of each of the rectangles is 1.

What is the total area of all 4 rectangles?

The Mean µ

nOur coin toss results are 8 numbers:

– 0, 1, 1, 1, 2, 2, 2, 3

nWhat is the mean of these numbers?

For our experiment, these are the only values of x. Our mean is called the population mean.

Standard Deviation