Respuesta :
AGE Cola Rootbeer Dr. Fizz Total
10–25 years 10 5 20 35
26–40 years 15 10 10 35
41–55 years 20 10 0 30
Total 45 25 30 100
Probability that a randomly selected person is 10-25 years old or prefers drinking rootbeer
Probability of 10-25 years old = 35/100 = 35%
Probability of drinking rootbeer = 25/100 = 25%
Probability of 10-25 years or perfers to drinking rootbeer
= 35% + 25% = 60% 1st option
10–25 years 10 5 20 35
26–40 years 15 10 10 35
41–55 years 20 10 0 30
Total 45 25 30 100
Probability that a randomly selected person is 10-25 years old or prefers drinking rootbeer
Probability of 10-25 years old = 35/100 = 35%
Probability of drinking rootbeer = 25/100 = 25%
Probability of 10-25 years or perfers to drinking rootbeer
= 35% + 25% = 60% 1st option