A survey conducted by the Consumer Reports National Research Center reported, among other things, that women spend an average of 1.2 hours per week shopping online. Assume that hours per week shopping online are Poisson distributed. If this survey result is true for all women and if a woman is randomly selected,a. What is the probability that she would shop exactly three hours online over a one-week period?b. What is the probability that a woman would shop two or more hours online during a one-week period?c. What is the probability that a woman would shop fewer than six hours in a three-week period? a. P(x = 3 | λ = 1.2) = b. P(x ≥ 2 | λ = 1.2) = c. P(x < 6 | λ = 3.6) =
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 survey conducted by the Consumer Reports National Research Center reported, among other things, that women spend an average of 1.2 hours per week shopping online. Assume that hours per week shopping online are Poisson distributed. If this survey result is true for all women and if a woman is randomly selected,
a. What is the probability that she would shop exactly three hours online over a one-week period?
b. What is the probability that a woman would shop two or more hours online during a one-week period?
c. What is the probability that a woman would shop fewer than six hours in a three-week period?
a. P(x = 3 | λ = 1.2) =
b. P(x ≥ 2 | λ = 1.2) =
c. P(x < 6 | λ = 3.6) =
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