On any given day, 34% of sales at Ruby’s jewelry store are from necklaces, while 28% of sales at Nugget Jewels are from necklaces. Suppose Ruby’s has 50 customers and Nugget Jewels has 60 customers on a randomly selected day. Let R = the proportion
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.
On any given day, 34% of sales at Ruby’s jewelry store are from necklaces, while 28% of sales at Nugget Jewels are from necklaces. Suppose Ruby’s has 50 customers and Nugget Jewels has 60 customers on a randomly selected day. Let R = the proportion of sales that are from necklaces at Ruby’s and N = the proportion of sales that are from necklaces at Nugget Jewels. What is the
Given
| Proportion | Sample size | |
| Ruby’s jewelry store | 34% | 50 |
| Nugget Jewels | 28% | 60 |
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