Research Article
Estimation of Jointly Normally Distributed Demand for Cross-Selling Items in Inventory Systems with Lost Sales
Table 3
Parameters and notations.
| Parameters/notations | Meaning |
| | Indices of items | | Unknown original “naked” demand for items and | | The realized original “naked” demand of items and | | Observed demand, i.e., the realized quantity of sales of items and | | Means of demand (demand expectations) for items and to be estimated | | Standard deviation of demand for items and to be estimated | | Correlation coefficient of the original demand to be estimated | , | Order quantities of items and | | Cross-selling coefficients | | Means of the sampled sales data of items and | | Estimators of and | | Estimators of and | | Estimator of | | Quantile of standard normal distribution | | Total number of sampled data (sample size) |
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