Profits Number of days (Dollars) 10-24 2 25-39 40-54 8 55-69 11 70-84 3 (i) State one disadvantage of displaying data in groups (ii) Use the table above to estimate the following a. The mean of the distribution b. The median of the distribution C. The sample variance of the distribution
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.
The following Table shows the distribution of daily profits made by a local supermarket over a 30-day period.
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