A hint to get started
Find the mean and variance of defective-part counts
Three parts from a production line are sampled and tested. Let count the defective parts, with distribution
| 0 | 1 | 2 | 3 | |
|---|---|---|---|---|
| 0.51 | 0.38 | 0.10 | 0.01 |
Find the mean and variance of .
CJC · Lecture · Example 11
Name the events, identify the sample space, and state which outcomes or conditions are being counted.