A store had a sale on a popular soft drink, with a limitof 5 packs per customer. The table shows the probabilitymodel for the random variable X = number of packs acustomer purchases.What is the expected number of packs a customerpurchases?A) 2.50 B) 3.00 C) 3.28D) 3.54 E) 4.00 X 1 2 3 4 5P(X) 0.20 0.16 0.10 0.24 0.30
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.
A store had a sale on a popular soft drink, with a limit
of 5 packs per customer. The table shows the probability
model for the random variable X = number of packs a
customer purchases.What is the expected number of packs a customer
purchases?
A) 2.50 B) 3.00 C) 3.28
D) 3.54 E) 4.00
X 1 2 3 4 5
P(X) 0.20 0.16 0.10 0.24 0.30
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