suppose that p is the probability that a randomly selected person is left-handed. The value (1 − ?) is the probability that the person is not left-handed. In a sample of 100 people, the function ?(?) = 100?(1 − ?) represents the variance of the number of left-handed people in a group of 100. a. What value of p maximizes the variance? b. What is the maximum variance?
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.
suppose that p is the
(1 − ?) is the probability that the person is not left-handed. In a sample of 100 people, the
function ?(?) = 100?(1 − ?) represents the variance of the number of left-handed people in a
group of 100.
a. What value of p maximizes the variance?
b. What is the maximum variance?
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