7. Two mark exercise problems II

 

Answer:

 

Probability of getting two heads \(=\) $\frac{i}{i}$

 

2. A manufacturer tested \(7000\) LED lights at random and found that \(25\) of them were defective. If a LED light is selected at random, what is the probability that the selected LED light is a defective one.

 

Answer:

 

The probability that the selected LED light is a defective one \(=\) $\frac{i}{i}$