3 Stat questions for STRONG HEART ONLY

1. Assume that the regression line for the New York City murder rate per 100,000 residents between 2000 and 2010 is given by y=−0.24x+488.7, where x is the year and y is the murder rate. Interpolate to get an approximate value for the rate in 2001. Round your answer to one decimal place.

Interpolated rate:

2. The table below shows the murder rate per 100,000 residents for a large American city over a twelve-year period.

Year	2000	2001	2002	2003	2004	2005	2006	2007	2008	2009	2010	2011
Rate	8.5	7.1	7.2	6.8	6.4	7.1	5.8	6.1	5.4	6.2	6.1	4.9

Enter the coefficients of the regression line for this data, rounding each to two decimal places:
	Slope:???		Intercept: ???
Use your regression line (with rounded coefficients) to estimate this city’s murder rate in 2012. Round your answer to the nearest tenth.
	Estimate: ???

3. The table below shows per capita cheese consumption, in pounds, for several years for one American state.

Year	2000	2001	2002	2003	2004	2006	2007	2008	2009
Cheese Consumed	26	27	28.4	28.9	30.6	29.6	30.6	31.4	32.3

Which of the following is the equation of the regression line for this data?

A. y=0.605x−1182.454
B. y=1182.454x+0.605
C. y=0.605x+1182.454
D. y=−0.605x−1182.454
E. y=1182.454x−0.605
F. y=−0.605x+1182.454

Using the regression line, estimate the per-capita consumption in 2005 to the nearest tenth of a pound.
	Estimate:???​​​

Did you just perform interpolation or extrapolation?
A. extrapolation
B. interpolation