Jane’s Java serves both coffee and tea, each in a small orlarge size. History shows that 70% of the customers whoorder just one drink order coffee. Of those customers,80% order a large; 60% of the customers who order teaorder a large.a) Compute the probability that a random customer whoorders one drink will get a small tea.b) Compute the probability that a random customer whoorders one large drink gets coffee.c) Jane’s prices are $3.00 for large coffee, $2.50 for largetea, $2.00 for small coffee, and $1.50 for small tea.What is the expected price for a drink sold by Jane?
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.
Jane’s Java serves both coffee and tea, each in a small or
large size. History shows that 70% of the customers who
order just one drink order coffee. Of those customers,
80% order a large; 60% of the customers who order tea
order a large.
a) Compute the probability that a random customer who
orders one drink will get a small tea.
b) Compute the probability that a random customer who
orders one large drink gets coffee.
c) Jane’s prices are $3.00 for large coffee, $2.50 for large
tea, $2.00 for small coffee, and $1.50 for small tea.
What is the expected price for a drink sold by Jane?
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