The equation for the line of best fit can be obtained as follows, using the least square method (for more info visit http://hotmath.com/hotmath_help/topics/line-of-best-fit.html ):
mean of X = 1/6
mean of Y = 2/3
slope, m = 704/1121 = 0.6
Computing the y-intercept using the formula:
b = mean of Y - m (mean of X) = 2/3 - (704/1121)(1/6)
b = 0.562 = 0.6
Therefore, the equation of the line of best fit, given the standard relation:
y = mx + b
y = 0.6x + 0.6
The domain will be ur x values {-2,0,2}
the range will be ur y values { 0,2}
** if the numbers repeat, u only have to list them once
Answer:
Non representative
Step-by-step explanation:
A representative sample would be a subset of a population that accurately describes some characteristic from a larger group of people.
A sample of 40 patients from a local hospital is not a big enough sample to estimate the mean cholesterol level of U.S citizens (citizens from an entire country).
Therefore, this sample would be non representative.
Write down the portion number amount as a numerator over the whole number amount. Calculate the equation. The result is the decimal equivalent of the percentage. Multiply the decimal equivalent of the percentage by 100; or move the number's decimal point over two places to the right
