The probability of getting someone in the 18-21 age bracket or someone who agreed to respond
Step-by-step explanation:
The counts are as follows
Age Group No of people contactedNo of refusals Total
18-21 88 8 96
22-29 240 42 282
Total 328 50 378
The probability of getting some one in the age bracket of 18-21 or some one who refused to respond is