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Mathematics 19 Online
OpenStudy (anonymous):

A quiz consists of 10 multiple choice questions. Each question is marked either “right” or “wrong.” Each right answer gets 5 points, and 1 point is taken off for each wrong answer. Problem A The correlation between the number of right answers and the number of wrong answers is _________________. Problem B The correlation between the score on the test and the number of right answers is _________________.

OpenStudy (anonymous):

correct answer please

OpenStudy (anonymous):

a. -1 b. 1

OpenStudy (anonymous):

Thanks!

OpenStudy (anonymous):

and this one? The highest point in the scatter is the point for Illinois, at 1807. The two just below it, at 1778 and 1777, are for Minnesota and Iowa. The lowest points are at 1391 and 1385, for Maine and D.C. respectively. Pick all the options that are correct. The scatter diagram shows that The state of Illinois did a better job preparing its students for the SAT than the state of Maine did. The students who took the test in Illinois did better, on average, than those who took the test in Maine. A higher percentage of students took the test in Maine than in Illinois. In general, states with high participation rates tended to have low scores. The higher scoring states tended to be those that had lower participation rates, in general.

OpenStudy (anonymous):

Correct answer please!

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