The RFS Electronics sells iPhones for Apple Inc. RFS usually sells the number of iPhones on Sunday. The store manager has established the following probability distribution for the number of iPhones the store expects to sell on a particular Sunday. No. of iPhones sold (x) 0 1 2 3 4 5 Probability P(x) 0.05 0.10 0.12 0.15 0.18 0.40 How many iPhones should the store manager expects to sell? What is the variance and standard deviation 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 RFS Electronics sells iPhones for Apple Inc. RFS usually sells the number of iPhones on Sunday. The store manager has established the following
| No. of iPhones sold (x) | 0 | 1 | 2 | 3 | 4 | 5 |
| Probability P(x) | 0.05 | 0.10 | 0.12 | 0.15 | 0.18 | 0.40 |
How many iPhones should the store manager expects to sell? What is the variance and standard deviation of the distribution?
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