PROBABILITY & PROBABILITY DISTRIBUTIONS
7) Suppose we conduct an experiment by flipping a fair coin four times.
a) Are the outcomes “heads” and “tails” values of a categorical variable or a
quantitative variable? Explain.
b) Would you say that the outcome “the number of heads in four tosses” is a value of a
categorical variable or a quantitative variable? Explain.
8) A random variable is a numerical measure of the outcome of an experiment, i.e. a
quantitative variable. Random variables are typically denoted with capital letters near
the end of the alphabet such as X or Y. We often refer to random variables as
quantitative variables.
a) Suppose we randomly select a person and test their blood type. Is the variable
blood type a random variable? Explain.
b) Suppose we toss a coin four times. Is the variable number of heads a random
variable? Explain.
DETAILED ASSIGNMENT
20201001065014mod_09___probability___probability_distributions_with_hw
