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1.Researchers are studying hypertension in men. To develop a basic understanding, researchers randomly sample 1000 men aged 35 and older and collect medical information. researchers are particularly interested in the relationship between two variables: age group and hypertension status. The table below summarizes the info collected:
No Hypertension:
35-44 yr. olds: 195
45-54 yr olds: 153
55-64 yr olds: 455
65 yr and older: 45
Hypertension:
35-44 yr. olds: 50
45-54 yr olds: 88
55-64 yr olds: 117
65 and older: 232
35-44 yr olds total: 245
45-54 yr olds: 241
55-64 yr olds: 237
65 and older: 277
full total: 1000 men
a) What type of variable is age group?
b) P(hypertension/35-44) = 50/487 = 0.1027)
What mistake is in this probability?
c) What is the actual probability of a man in the 35-54 group having hypertension? (round ANSWER to 4 decimals)
d) Based on the information in the table, do you feel the hypertension status and age group are dependent or independent? Explain your ANSWER.
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