A survey found that 10% of Americans believe that they have seen a UFO. For a sample of 10 people, find each probability; (a)That at least 2 people believe that they have seen a UFO. (b)That 2 or 3 people believe that they have seen UFO. (c)That exactly 1 person believes that he or she has seen a UFO.
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.
Assume all variables are binomial. If values are not found in the binomial distribution table, use the binomial formula.(Round your final answer to threedecimal places)
A survey found that 10% of Americans believe that they have seen a UFO. For a sample of 10 people, find each probability;
(a)That at least 2 people believe that they have seen a UFO.
(b)That 2 or 3 people believe that they have seen UFO.
(c)That exactly 1 person believes that he or she has seen a UFO.
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