Suppose that the random variable $\displaystyle {x}$, shown below, represents the number times . $\displaystyle {P}{\left({x}\right)}$ represents the probability of a randomly selected person having received that number of speeding tickets during that period. Use the probability distribution table shown below to answer the following questions. 0

a) What is the probability that a randomly selected person has received four tickets in a three-year period?

$\displaystyle {P}{\left({x}={4}\right)}=$

b) What is the probability that a randomly selected person has received one tickets in a three-year period?

$\displaystyle {P}{\left({x}={1}\right)}=$

c) What is the probability that that a randomly selected person has received more than zero tickets in a three-year period?

$\displaystyle {P}{\left({x}>{0}\right)}=$

d) What is the probability that that a randomly selected person has received three or less tickets in a three-year period?

$\displaystyle {P}{\left({x}\le{3}\right)}=$