Question

29% of the homes in hilly valley are equipped with a security system.if three homes are selected at random, what is the probability that at least one of these homes will have a security system. Round your answer to four decimal places.​

Answer 1

Answer:

Step-by-step explanation:

29/100 people have security system

so probability of 1 house having security system is 29/100

And probability of atleast 1 house in 3 having security system: 29/100×3

=>87/100

=> 0.87 (might be a wrong answer)