The average January surface water temperatures (°C) of Lake Michigan from 2000 to 2009 were 5.07, 3.57,
5.32, 3.19, 3.49, 4.25, 4.76, 5.19, 3.94, and 4.34
The mean value of these temperatures is 4.312.
What is the variance of this data set?

.

step-by-step explanation:

or

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)