Answer
a) Frequency distribution
b) Probability distribution
c) 4.7; statistic
d) 4.5; parameter
e) The mean should be around 4.5
Work Step by Step
a) The table on the left is a frequency distribution.
b) The table on the right is a probability distribution, for the right hand column shows the probability that the given event will occur.
c) The mean is:
$\frac{\Sigma x}{n}$
Where n is the number of values.
Thus, we find:
$\bar{x}=4.7$
This result is statistic
d) The probabilities are all equal, so the mean will e the center of the data set, which is 4.5. (The result is a parameter.)
e) We would expect the mean to be the mean of the probability distribution, which is 4.5.
