The second quartile Q₂ is nothing but the Median.
This means that it median = 4.2
Of 85% of cars sold where not black then 100-85% where black = 15%
let the number of cars sold be y
then 15%*y=300
y= 300 divided by 15%
= (300*100)/15
=2000
therefore 2000 cars were sold
The equation of a line is typically written as y=mx+b<span> where </span>m<span> is the slope and </span>b<span> is the y-intercept.</span>
If you a point that a line passes through, and its slope, this page will show you how to find the equation of the line.
what does m equal?
