A following binomial experiment has 4 trials, and the probability of success is 0.6900 f(0) = 0.0092 f(1) = 0.0822 f(2) = 0.2745 f(3) = 0.4074 f(4) = 0.2267 Use these probabilities to answer questions 11 - 14. 11. Four people enter the store…what is the probability that exactly 3 make a purchase? 12. Four people enter the store…what is the probability no more than 1 make a purchase? 13. Four people enter the store…what is the probability that at least 2 make a purchase? 14. Four people enter the store…what is the probability that any number but 4 make a purchase?
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 following binomial experiment has 4 trials, and the
f(0) = 0.0092
f(1) = 0.0822
f(2) = 0.2745
f(3) = 0.4074
f(4) = 0.2267
Use these probabilities to answer questions 11 - 14.
11. Four people enter the store…what is the probability that exactly 3 make a purchase?
12. Four people enter the store…what is the probability no more than 1 make a purchase?
13. Four people enter the store…what is the probability that at least 2 make a purchase?
14. Four people enter the store…what is the probability that any number but 4 make a purchase?
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