Tell whether correlation is being used correctly. Identify any statistical errors.A researcher reports that a high correlation has been found between gender and political party affiliation.
What will be an ideal response?
Incorrect. There may be association between these two variables but since they are both categorical variables, there cannot be a correlation.
Mathematics
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Solve the differential equation.xy '+ 4y = 
, x > 0
A. y = 
, x > 0
B. y = 
, x > 0
C. y = 
, x > 0
D. y = 
, x > 0
Mathematics
Find the unit vector having the same direction as v.v = -3i + j
A. u = - 
i - 
j
B. u = - 
i + 
j
C. u = -3
i + 
j
D. u = - 
i + 
j
Mathematics
Add or subtract as indicated.
- 
A. 
B. 
C. 
D. 
Mathematics
Solve the equation.
- 
= 
A. 96 B. no solution C. -12 D. 12
Mathematics