Chapter 5: Q. 88 (page 355)
The percent of persons (ages five and older) in each state who speak a language at home other than English is approximately exponentially distributed with a mean of
a. Define the random variable.
b. Is
c.
d.
e.
f. Draw a graph of the probability distribution. Label the axes.
g. Find the probability that the percent is less than
h. Find the probability that the percent is between eight and
i. The percent of all individuals living in the United States who speak a language at home other than English is
i. Why is this number different from
ii. What would make this number higher than
Short Answer
a. The percent of persons (ages five and older) in each state who speak a language at home other than English
b. the random variable
c.
d.
e. localid="1651433623625"
f. The graph is drawn
g.
h.
i.i. This should be because of the higher value of standard deviation which is present in the collected data.
ii. The given percentage is higher than