Answer:
The probability of getting someone who is age 18-22 or does not smoke is 0.854 ....
Step-by-step explanation:
Through the given statements we have to find the probability of getting someone who is age 18-22 or does not smoke.
Age 18-22 has 177 people. 48 of whom smoke.
People who does not smoke =(177-48) + (146-31) +(81-28)
People who does not smoke=129+115+53 = 297
People with age (18-22) who does not smoke = 129
P(18-22 or does not smoke) = (177+297-129)/(177+146+81)
P(18-22 or does not smoke) = 345/404
P(18-22 or does not smoke) = 0.854
Thus the probability of getting someone who is age 18-22 or does not smoke is 0.854 ....
