Mr. Marsh wants to see if smokers like to gamble at casinos. Once he has his data, he plots the information in a scattergram. What three aspects of the bivariate relationship will the scattergram reveal? Explain the significance of each
What will be an ideal response?
Form - relationships between two variables can be independent, linear, or curvilinear. Independence or no relationship looks like a random scatter with no patter Direction - positive relationship means higher values go with higher values. negative relationship means higher values on one variable go with lower values on the other. Precision - measures association - high precision occurs right on the line. Amount of
spread among the points indicates precision.
You might also like to view...
Presidents have viewed the War Powers Act as
A) ?being unconstitutional. B) ?being a legitimate use of congressional power. C) ?helping America's image abroad. D) ?strengthening their power in foreign affairs. E) ?being constitutional.
What was the effect of more than a dozen states adopting a requirement that voters show a picture ID at the polls before the 2012 election?
a. It raised the cost of participation for poor and minority voters who are more likely not to possess driver’s licenses or passports. b. It reduced the cost of participation for wealthy White voters who are more likely to have a driver’s license or a passport. c. It did not really have an effect because equal numbers of Republican and Democratic states adopted these new rules so the effects canceled each other out. d. There was no effect on the cost–benefit calculation for voters because everyone has either a driver’s license or a passport.
Since 1980, the Asian American population in Texas has
What will be an ideal response?
Both the number of PACs (political action committees) and the amount of money PACs spend on elections have declined at an alarming rate in recent years.
Answer the following statement true (T) or false (F)