Mathematics, 21.12.2019 01:31, ZacharyGallagher
In the united states, there has historically been a strong relationship between smoking and education, with well-educated people less likely to smoke. to examine whether this pattern has changed, a sample of 459 men was selected at random from those who had visited a health center for a routine check-up over the course of the past year. education is classified into three categories corresponding to the highest level of education achieved, and smoking status is classified into four categories. education nonsmoker former moderate heavy totalhigh school 56 54 41 36 187college 37 43 27 32 139graduate school 53 28 36 16 133total 146 125 104 84 4591. the proportion of former smokers with a university education is: a) 0.15 b) 0.34 c) 0.22 d) 0.572. the proportion of men with a high school education that are current or former smokers is: a) 0.12 b) 0.30 c) 0.78 d) 0.703. the degrees of freedom for the chi-square test for this two-way table are: a) 2 b) 6 c) 7 d) 12
Answers: 1
Mathematics, 21.06.2019 18:30, genyjoannerubiera
Isuck at math ; ^; m a student solved this problem and said the answer is 3 feet. chase had a roll of ribbon that contained 7 7/8 feet of ribbon. he cut off one piece that was 3 5/8 feet long and another piece that was 1 1/4 feet from the roll. how much ribbon was left on the roll? is the student's answer reasonable? yes, the answer is reasonable. no, the answer is not reasonable. it should be about 2 feet. no, the answer is not reasonable. it should be about 13 feet. no, the answer is not reasonable. it should be about 4 feet.
Answers: 1
Mathematics, 21.06.2019 19:30, ginocousins06
Fa bus driver leaves her first stop by 7: 00 a. m., her route will take less than 37 minutes. if she leaves after 7: 00 a. m., she estimates that the same route will take no less than 42 minutes. which inequality represents the time it takes to drive the route, r?
Answers: 3
In the united states, there has historically been a strong relationship between smoking and educatio...
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