2006 Pop. = 47.9 million
Expected decrease = 4.8% = .048
Expected population = 47.9 million (1- .048) = 45.60 million
Part A:
y=mx+b
621=83(7)+b
Part B:
621=83(7)+b
621=581+b
621-581=b
b=40
Insurance cost is 40$
Y= 3x
When x= 8, y= 24
Hope this helps!
I think it’s standard deviation.
