Answer:
Step-by-step explanation:
Given that 4 out of 25 light bulbs are defective .
This can be expressed as a fraction 4/25 .
So, to find the expected number of defective light bulbs out of 350, you can set up a proportion: 4/25 = x/350
x=4x350
25
x=1400/25
x=56
So, you would expect around 56 light bulbs to be defective out of 350.