A shoe manufacturer is known to manufacture 5% of shoes as defective. The ShoeFit store recently ordered 300 pairs from this manufacturer. Let x be number of defective shoes in the order received by ShoeFit store.
- Write down a formula for probability distribution of x.
- Compute a) P(x ≤ 5) b) P(x ≤ 20)
- Give the expected value and standard deviation of defective shoes in ShoeFit store order.