Answer:
the answer are x=4y-20
and x represents the independent variable and y represents the dependent variable
Create a proportion:
1 in/15 mi= x in/25 mi
15x=25
X is approximately 1.67 in
3 3/4 =3.75
20.25 divide 3.75 = 5.4
one pound of candy costs 5.40
At 95% confidence interval, true population mean is given by
x+/- 2sd
where x= sample mean and sd = sample standard deviation
True mean of population = 13.50 +/- 2*1.51 = 13.50+/-3.02
Interval: 13.50+3.02, 13.50-3.02 = 16.51, 10.48
