The table shows the average number of acres per farm in the United States for selected years. † Year 1955 1965 1975 1985 1995 2005 Acreage 258 340| 420 441 438 444 (a) Plot the data where A is the acreage and t is the time in years, with t = 0 corresponding to 1950. 460 Graph Layers Clear All 440 • Point 1 420 > Point 2 400 Fill • Point 3 380 • Point 4 360 340 • Point 5 No 320 Solution • Point 6 300 • Point 7 280 260 O 240 O Help WebAssign. Graphing Tool O Submission Data (b) Sketch a freehand curve that approximates the data. Use the curve to approximate A(40). acres/farm

The table shows the average number of acres per farm in the United States for selected years. † Year 1955 1965 1975 1985 1995 2005 Acreage 258 340| 420 441 438 444 (a) Plot the data where A is the acreage and t is the time in years, with t = 0 corresponding to 1950. 460 Graph Layers Clear All 440 • Point 1 420 > Point 2 400 Fill • Point 3 380 • Point 4 360 340 • Point 5 No 320 Solution • Point 6 300 • Point 7 280 260 O 240 O Help WebAssign. Graphing Tool O Submission Data (b) Sketch a freehand curve that approximates the data. Use the curve to approximate A(40). acres/farm

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

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Concept explainers

Correlation

Correlation defines a relationship between two independent variables. It tells the degree to which variables move in relation to each other. When two sets of data are related to each other, there is a correlation between them.

Linear Correlation

A correlation is used to determine the relationships between numerical and categorical variables. In other words, it is an indicator of how things are connected to one another. The correlation analysis is the study of how variables are related.

Regression Analysis

Regression analysis is a statistical method in which it estimates the relationship between a dependent variable and one or more independent variable. In simple terms dependent variable is called as outcome variable and independent variable is called as predictors. Regression analysis is one of the methods to find the trends in data. The independent variable used in Regression analysis is named Predictor variable. It offers data of an associated dependent variable regarding a particular outcome.

Question

The table shows the average number of acres per farm in the United States
for selected years. †
Year
1955 1965 1975 1985 1995 2005
Acreage
258
340
420
441
438
444
(a) Plot the data where A is the acreage and t is the time in years, with
t = 0 corresponding to 1950.
460
Graph Layers
Clear All
440
> Point 1
420
• Point 2
400
Fill
Point 3
380
360
• Point 4
340
• Point 5
No
320
Solution
> Point 6
300
280
Point 7
260
240
Help
WebAssign. Graphing Tool
O Submission Data
(b) Sketch a freehand curve that approximates the data. Use the curve
to approximate A(40).
acres/farm

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