The table below show the soft drinks preferences of people in three age groups. Cola Root beer Lemon-lime Under 21 years of age 40 25 20 Between 21 and 40 35 20 30 Over 40 years of age 20 30 35 A) If one of the subjects is randomly selected, find the probability of selecting someone who are under 21 years of age and drink Lemon-lime. B) If one of the subjects is randomly selected, find the probability that the person drinks root beer given that they are over 40. C) If one of the subjects is randomly selected, find the probability that the person drinks cola or over 40 years of age
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.
Q1. The table below show the soft drinks preferences of people in three age groups.
Cola Root beer Lemon-lime
Under 21
years of age
40 25 20
Between 21
and 40
35 20 30
Over 40 years
of age
20 30 35
A) If one of the subjects is randomly selected, find the probability of selecting someone who are
under 21 years of age and drink Lemon-lime.
B) If one of the subjects is randomly selected, find the probability that the person drinks root
beer given that they are over 40.
C) If one of the subjects is randomly selected, find the probability that the person drinks cola or
over 40 years of age.
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