Respuesta :
Answer:
Probability that a car need to be repaired​ once = 20% = 0.20
Probability that a car need to be repaired​ twice = 8% = 0.08
Probability that a car need to be repaired​ three or more = 2% = 0.02
a) If you own two​ cars what is the probability that  neither will need​ repair?
Probability that a car need to be repaired​ once , twice and thrice or more= 0.20+0.08+0.02=0.3
Probability that car need no repair = 1-0.3=0.7
Neither car will need repair=[tex]0.7 \times 0.7=0.49[/tex]
​b) both will need​ repair?
Probability both will need​ repair = [tex]0.3 \times 0.3=0.09[/tex]
c)at least one car will need​ repair
Neither car will need repair=[tex]0.7 \times 0.7=0.49[/tex]
Probability that at least one car will need​ repair= 1-0.49 = 0.51
