Tell whether correlation is being used correctly. Identify any statistical errors.Pete obtained a high correlation between the number of churches in a city (x) and the number of homicides in the past decade (y) in the city. This suggests that when a city builds new churches, the number of homicides is likley to increase.
What will be an ideal response?
Incorrect. Correlation does not imply causality. The correlation between the two variables is explained by their association with a third variable, population. Larger cities tend to have both more churches and more homicides than small cities.
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Solve the problem.Write 
+ 
+ 
+ 
as a single iterated integral with the order of integration reversed.
A. 
B. 
C. 
D. 
Evaluate the expression.
?
?
A. 
B. 
C. 
D. 
E. -10
Factor completely.16x2 + 24x + 9
A. (4x + 3)2 B. (4x - 3)2 C. (4x + 3)(4x - 3) D. Cannot be factored
Solve the problem.How many line segments are determined by joining the dots on the last two circles?
3 segments6 segments
segments
segmentsLook for a pattern. How many line segments are determined by joining n dots on a circle? How many line segments are determined by joining 14 dots on a circle?
What will be an ideal response?