21. In 1965, the mean price of a new car was $2,650 and the standard deviation was $1000, In 2011, the mean was $30,500 and the standard deviation was $900o. If a Ford Mustang cost $2300 in 1965 and $28,000 in 2011, in which year was it more expensive relative to other cars? 1965, because the standard score is higher than in 20112 300-2650 1965, because the percentile is higher than in 2011. 2011, because the standard score is higher than in 1965. d. 2011, because the percentile is higher than in 1965. We cannot compare the two prices, because we don't know if the prices for each year are Normally distributed. a. 1965 28,000-303C b. 1000 9000 с. -.35 -.28 e.

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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.