A) State the Random Variable: (select from one of the following) X=the number of heads observed
X= tossing a coin
X= Number of coins tossed
X= The number of heads observed when you flip a coin three times
X=The probability that you observe
heads

B) Construct a probability distribution table for the number of hairs obtained over three tosses. enter the x values from smallest to largest

C) determine the shape of the probability distribution of X (select from the following)

Left skewed
Right skewed
Symmetric
Uniform

D) Find the MEAN number of heads for this distribution

E) find the standard deviation for the number of heads for this distribution

F) Find the probability of obtaining two or less heads over three tosses of a coin