Find a. P(A) and P(B) b. P(AUB) c. P(A∩B)
Size of a firm matters for implementation of supply chain management practices. It implies that larger firms very frequently implement supply chain and use advanced technologies to integrate supply chain partners. A study has reported part of the relationship between types of firm (Private and Public) and supply chain management implementation and between size of a firm (small to large, in terms of number of employees) and supply chain management implementation in International Journal of Business Modelling and Supply Chain Management (Vol. 5, 2013). The following table shows number of different sized private and public firms participated in this study
| Private | Public | Total | |
| ≤ 24 employees | 20 | 1 | 21 |
| 25-49 | 17 | 1 | 18 |
| 50-99 | 14 | 1 | 15 |
| 100-199 | 9 | 0 | 9 |
| ≥ 200 employees | 23 | 9 | 32 |
| Total | 83 | 12 | 95 |
Two following events are defined: A: {A firm participated in this study is Private} B: {A firm participated in this study has employees more than 49}
Find a. P(A) and P(B)
b. P(AUB)
c. P(A∩B)
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