1. The problem asks for the expected number of faulty electronic components in a box of 50, given the probability of a component being faulty is 4%. 2. The probability of a component being faulty is $p = 0.04$. 3. The number of components in the box is $n = 50$. 4. The expected number of faulty components $E$ is given by the formula: $$E = n \times p$$ 5. Substitute the values: $$E = 50 \times 0.04 = 2$$ 6. Therefore, you would expect to find about 2 faulty items in a box of 50.