The minimum age requirement for a regular driver’s license differs from state to state. The frequency distribution for this age requirement in the 50 states is given in the following table: Minimum age: 15 16 17 18 19 21 Frequency of Occurrence 1 15 4 28 1 1 a) Describe a random variable X that is associated with these data. b) Find the probability distribution for the random variable X. c) Compute the mean, variance, and standard deviation of X.
Contingency Table
A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.
Binomial Distribution
Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.
The minimum age requirement for a regular
driver’s license differs from state to state. The
frequency distribution for this age
requirement in the 50 states is given in the
following table:
Minimum age: 15 16 17 18 19 21
Frequency of
Occurrence 1 15 4 28 1 1
a) Describe a random variable X that is
associated with these data.
b) Find the
random variable X.
c) Compute the
standard deviation of X.
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