Suppose that 50 % of americans drink soda every day. amy, a researcher at a local university, takes a random sample of 16 americans. let represent the number of americans in amy's sample who drink soda every day. let and represent the parameters of a normal distribution and let and p represent the parameters of a binomial distribution. the sampling distribution of is : almost binomial with =16 and p=0.5 . exactly normal with =8 and =2.000 . exactly binomial with =16 and p=0.5 . a approximately normal with =0.5 and =0.125 .

x coordinate can be written by using the formula, x= x1 + 2/5(x2 - x1)

step-by-step explanation:

formula

x = x1 + p/w(x2 - x1)

let the line segment ab with a(x1,y1) and b(x2,y2)

a point(x,y) divide ab in the ratio, 2: 3 the x coordinate can be written as

x = x1 + p/w(x2 - x1)

here p=2 and w = 2+3

therefore,

x coordinate can be written by using the formula, x= x1 + 2/5(x2 - x1)

similarly y coordinate y = y1 + 2/5(y2 - y1)

step-by-step explanation:

for exempl this   system of equations   y = x - 3

                                                                y = 2x - 5

look   the line : y = x -3     ( red)

                            the line : y = 2x -5 ( bleus)