11.333333 (three repeated, don't know how to type that
Answer:
11.5
The sample standard deviation measures the spread of a data distribution of the sample. It is usually used to estimate the population standard deviation
We develop an equation for the given situation by first writing the general equation for lines,
y = mx + b
Substituting to this given the values given above,
(1990) 430 = b
(2000) 400 = m(10) + 430
The value of m from the equation in 2000 is -3. Thus, the equation of that relates the variables is,
y = -3x + 430
Dear Yakiii,
Your answer should be 2 meters.
Venell has 25 model trains.
Now multiply that by 80 to get 2000.
2000 = 2 meters.
Hope this helps!!! :)
