The table below summarizes resuits from a study of people who refused to answer

Question

The table below summarizes resuits from a study of people who refused to answer survey questions. A pharmaceutical company is interested in subject is someone 60 and over who responded? opinions of the elderly. What is the probability that the selected Age 22-29 30-39 40-49 50-59 60 and over 252 21 18-21 242 34 133 27 135 36 199 58 Refused The probability that the selected subject is someane 60 and over who responded is Round to three decimal places as needed.) 12 Enter your answer in the answer box

Explanation / Answer

Solution :

Age

18 - 21 22 - 29 30 - 39 40 - 49 50 - 59 60 and over Total

Responded 70 252 242 133 135 199 1031

Refused 12 21 34 27 36 58 188

Total 82 273 276 160 171 157 1219

The probability that the selected subject is someone 60 and over responded is ,

= 157 / 1219

= 0.129

Probability = 0.129   

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