This preview shows page 1. Sign up to view the full content.
Unformatted text preview: its linear, confirms the exponential
If
relationship.
relationship.
2. Can find LSRL:
Can
log ŷ = a + bx
3. We can also find r and r2
3.
1. Exponential Models
Exponential Consider the following
Consider
dataset about the
world crude oil
production from 1880
to 1970.
to
Of course, we start
Of
with a scatterplot.
with Years since
Years
1880
1880 Production in
Production
Millions of
barrels
barrels 0 30 10 77 20 149 30 328 40 428 50 1412 60 2150 Exponential Models
Exponential From the scatterplot,
From
we probably suspect
the data is not linear.
the Production in Millions of barrels
2500 The next slide shows
The
the family of curves
we watch out for.
we Barrels in Millions 2000
1500 Production in Millions of
barrels 1000
500
0
0 20 40
years since 1880 60 80 Exponential Scatterplots
Exponential Exponential models
Exponential
appear when there is a
constant multiplier.
constant For each unit in the x, you
For
mu...
View
Full
Document
This document was uploaded on 03/30/2014 for the course MATH AP Statist at Richard Montgomery High.
 Winter '13
 Jessell

Click to edit the document details