Question 1
A production process produces 2% defective parts. A sample of 5 parts from the production is selected. What is the probability that the sample contains exactly two defective parts? Use the binomial probability function and show your computations to answer this question.
Question 2
A production process produces 90% non-defective parts. A sample of 10 parts from the production process is selected.
| a. | What is the probability that the sample will contain 7 non-defective parts? |
| b. | What is the probability that the sample will contain at least 4 defective parts? |
| c. | What is the probability that the sample will contain less than 5 non-defective parts? |
| d. | What is the probability that the sample will contain no defective parts? |
Answer 1
0.0037648
Answer 2
| a. | 0.0574 |
| b. | 0.0128 |
| c. | 0.0001 |
| d. | 0.3487 |