The annual number of burglaries in a town rose by 50% in 2012 and fell by 10% in 2013. Hence the total number of burglaries increased by 40% over the two year period. What is the mistaken assumption here? Why is that assumption incorrect? By what percent has the number of burglaries actually changed in the two year period? show calculation By what percent would the crime have to decrease in the second year in order for the change over the two-year period to actually be a 40% increase? Round to nearest 10th percent (ex decimal .05873 is 5.873% to one decimal is 5.9%) show calculation
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 annual number of burglaries in a town rose by 50% in 2012 and fell by 10% in 2013. Hence the total number of burglaries increased by 40% over the two year period.
- What is the mistaken assumption here?
- Why is that assumption incorrect?
- By what percent has the number of burglaries actually changed in the two year period? show calculation
- By what percent would the crime have to decrease in the second year in
order for the change over the two-year period to actually be a 40% increase? Round to nearest 10th percent (ex decimal .05873 is 5.873% to one decimal is 5.9%) show calculation
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