1. For each statement, identify whether the numbers underlined are statistics or parameters. a. Of all U.S. kindergarten teachers, 32% say that knowing the alphabet is an essential skill. b. Of the 800 U.S. kindergarten teachers polled, 34% say that knowing the alphabet is an essential skill. 2. Of the U.S. adult population, 36% has an allergy. A sample of 1200 randomly selected adults resulted in 33.2% reporting an allergy. a. Who is the population? b. What is the sample? c. Identify the statistic and give its value. d. Identify the parameter and give its value.

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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.