Records kept by the chief dietitian at the university cafeteria over a 34-period show the following weekly consumption of milk (in gallons). Milk 200 205 210 215 220 225 230 235 240 Weeks 4 3 6 5 3 4 4 4 1 (a) Find the average number of gallons of milk consumed per week in the cafeteria. (Round your answer to the nearest whole number.) ___gal (b) Let the random variable X denote the number of gallons of milk consumed in a week at the cafeteria. Find the probability distribution of the random variable X. (Round your answers to three decimal places.) Milk 200 205 210 215 220 225 230 235 240 P(X = x)
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.
Records kept by the chief dietitian at the university cafeteria over a 34-period show the following weekly consumption of milk (in gallons).
| Milk | 200 | 205 | 210 | 215 | 220 | 225 | 230 | 235 | 240 |
| Weeks | 4 | 3 | 6 | 5 | 3 | 4 | 4 | 4 | 1 |
___gal
(b) Let the random variable X denote the number of gallons of milk consumed in a week at the cafeteria. Find the probability distribution of the random variable X. (Round your answers to three decimal places.)
| Milk | 200 | 205 | 210 | 215 | 220 | 225 | 230 | 235 | 240 |
| P(X = x) |
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