Use the elimination method to solve the system of equations. choose the correct ordered pair. 7x+4y=39
2x+4y=14

A)(5,1)
B)(3,2)
C)(5,4)
D)(3,4)

If two samples a and b had the same mean and standard deviation, but sample a had a larger sample size, which sample would have the wider 95% confidence interval? a. sample a as it comes first b. sample b as its sample is more dispersed c. sample a as it has the larger sample d. sample b as it has the smaller sample