The time it takes an average athlete to swim 100 meters freestyle at age x years can be modeled as t(x) 0.181x2 - 8.463x + 147.376 seconds.t (a) Numerically estimate to the nearest tenth the rate of change of the time for a 14-year-old swimmer to swim 100 meters freestyle. -3.4 seconds per year (of age) (b) Determine the percentage rate of change of swim time for a 14-year-old. (Round your answer to one decimal place.) -102.3 X% per year (of age) (c) Is a 14-year-old swimmer's time improving or getting worse as the swimmer gets older? The Select-- rate of change shows that swim time is-Select . The swimmer's time is Select

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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.