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

Problem 1P

See similar textbooks

Related questions

Q: (a) What percentage of the days reached temperatures of at least 88°F? 81 82 83 88 (b) Does this…

A: a) Total number of observations = 20Total number of observation with temperature at least 88 = 11…

Q: 5. Eight college students recorded how many hours they exercised every week. Then they measured…

A: Given information- We have given the graph between Exercise/week (hours) and Pulse (beats/min). Data…

Q: 3. The police department is assessing its staffing requirements. The department expects that the…

Q: of the midterm exam grade? (b) How many students are in this dataset? In other words, what is the…

A: Here we will solve the above example in R software we will enter the data into excel and save it as…

Q: . Sketch the graph of the amount of a particular brand of coffee sold by a store as a function of…

A: To Sketch The graph of the amount of a particular brand of coffee sold by a store as a function of…

Q: Use Excel to create a fully labelled line graph to show the total number of recorded offences in…

A: The data related to the number of shoplifting offences in Country E and Country W by category is…

Q: The annual per capita out-of-pocket expenses (to the nearest dollar) for U.S. health care for…

A: We need to find the area using right hand estimation.

Q: -2 -4 -6 -8 -10 Which of the following describes a correct analysis of the graph? A. It is safe to…

A: Option A

Q: create a desmos graph

A: Let we take X axis as time and Y axis as cost.

Q: Fill in the graph using the data

A: We are given Pacific Ocean data and asked to fill it in the given graph. We can do it manually or…

Q: when to make a line graph? Line graphs show changes of information over a time period. For instance,…

Q: Given data of height, x and stories, y is of six notable buildings in a city. height numbers: 774,…

A: The provided data set is: x y 774 51 625 47 521 46 508 41 497 39 477 36 Here,…

Q: Summarized on the right is the sale (in thousands) of the five best-selling cars in 2003. What…

Q: We want to predict the selling price of a house in Newburg Park, Florida, based on the distance the…

A: The variable x is the distance from the beach and variable y is the selling price.

Q: Manuel is investigating how long his phone's battery lasts (in hours) for various brightness levels…

Q: The table below gives data from a linear function. Find a formula for the function. Price per…

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

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps with 3 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

$Correlation, Regression, and Association$

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.

Similar questions

This scatter plot shows the population of a town from the year 1950-2010. Population (thousands) 70 60 50 40 30 20 29 10 1950 1960 1970 1980 1990 2000 2010 2020 Year Based on the data, what would be the approximate population (in thousands) in the year 2020? (Use line of best fit). 55,000 65,000 78,000 75,000
The following graph is an ogive of a standardized test's scores. The vertical axis in an ogive is the cumulative relative frequency and can also be interpreted as a percentile. Complete parts a through c. (a) Find and interpret the parcentile rank of a test score with a value of 150. A test score of 150 corresponds to the th percentile rank since this percentage of test scores are Percentic Ranks of Test Scores V a test score with a value of 150. 100+ 80 60- 40- 20- 100 120 140 160 180 200 Test Score Clear all Check ans View an example Get more help - Help me solve this O v 0 10:04 Percentile
This table shows the number of reported cases of a disease in a country. Week Size 400 500 625 3. 781 Write an equation that would model this data. Your answer should be in the proper form using correct letters and numbers with no spaces.
We want to predict the selling price of a house in Newburg Park, Florida, based on the distance the house lies from the beach. Suppose that we're given the data in the table below. These data detail the distance from the beach (x, in miles) and the selling price (y, in thousands of dollars) for each of a sample of sixteen homes sold in Newburg Park in the past year. The data are plotted in the scatter plot in Figure 1. Selling price, y (in thousands of dollars) Distance from the beach, x (in miles) 19.4 223.1 11.7 282.1 8.2 247.8 350- 8.5 292.0 12.5 211.2 300- 7.0 215.9 7.9 270.2 250- 5.7 266.2 12.3 193.9 200- 14.9 258.0 13.0 193.3 150- 9.4 286.8 8.0 238.7 10 20 12.5 216.3 Figure 1 3.2 316.5 5.2 297.4 Send data to calculator Send data to Excel The least-squares regression line for these data has a slope of approximately -5.48. Answer the following. Carry your intermediate computations to at least four decimal places, and round your answers as specified below. (If necessary, consult a…
A company has the following monthly sales for the past year. Plot the data points on a line graph and describe the results. Month Sales 1 145 2 146 3 145 4 150 5 148 6 150 7 156 8 160 9 158 10 153 11 152 12 154
The electric power consumed each month by a chemical plant is thought to be related to the average ambient temperature x1, the number of days in the month x2, the average product purity x3, and the tons of product produced x4. The past year's historical data are available and are presented in the following table. Y 240 236 290 274 301 316 300 296 267 276 288 261 x1 25 31 45 y=a+a 60 65 72 80 84 75 60 50 38 X₂ 24 21 24 25 25 26 25 25 24 25 25 23 X3 91 90 88 87 91 94 87 86 88 91 90 89 X4 100 95 110 88 94 99 97 96 110 105 100 98 =a + ax + ax + a 11 2 2 value of a? Use 4 decimal places. 3x3+ax represents the regression model. What is the 4 4
Use the data given in the three scenarios below to produce scatter plots, determine the type of model demonstrated in each example and then answer the questions based on the graph you created. Scenario 1 Rescue 911 In a rural community, fire and paramedic crews must service a large region. They often cover 2 or 3 towns several kilometres apart. These crews travel, on average, 70 km/h to their destination. The Chief of Station 42 wants to determine the time required to reach the patient's home (response time) for his region. The station is located next to the local hospital. The Chief knows the distances to each community that he services, including Deerborn, the furthest community, at 55 km away. Using the data below, create a scatter plot showing the relationship between distance to patient and response time. Distance to Patient (km) Response Time (minutes) 10 8.6 15 12.9 40 34.3 50 42.9 55 47.1
Luis is investigating how long his phone's battery lasts (in hours) for various brightness levels (on a scale of 0-100). His data is displayed in the table and graph below. Brightness Level (x) 31 33 43 76 81 85 91 95 Hours (y) 4.6 3.2 5.6 2.9 3.1 3.1 2 5- 10 20 30 40 50 60 70 80 90 100 11 Brightness Level a) Find the equation for the line of best fit. Keep at least 4 decimals for each parameter in the equation. b) Interpret the slope in context. O Luis should expect -0.0331 hours per brightness level. O Luis should expect -0.0331 brightness level per hour. c) What does the equation predict for the number of hours the phone will last at a brightness level of 43? hours Hours
a) Find the equation of the line which is the best fit for the data, with x equal to the number of years after 1999 and y equal to the millions of people b) Ise the model to estimate the number of people who took trips in 2008.
In the area of Russia récords were kept on the relationship between the rain Fall in inches and the yield of wheat (bushels per acre ).the data for a 9 year period is as follow. Rain fall x 13.1,11.4,16.0,15.1,21.4,12.9,9.6,18.2,18.6. yield y : 48.5,44.2,56.8,80.4,47.2,29.9,74.0,74.0,76.8 the equation of the line of least squares is given as ^y= -9.12+4.38x. How many bushels of wheat peen acre can be predicted if it’s is expected that there will be 30 inches of rain?
bike increases its speed by five meters per second every 10 seconds. Which graph shows this relationship? 501 45 50 45 40 35 30 25 35 A. B. 010 20 30 4050 Time (sec) 10 20 30 4050 Time (sec) 50 10 35 30 D. C. 10 20 30 40 50 Time (sec) 10 20 30 40 50 Time (sec) Snonon onon o n44332211 Speed (m/sec) Speed (m/sec) nttmm2211
On a field trip, there are 3 adults for every 45 students. Which graph models a relationship with the same unit rate? 10 10 8. 9 8. 6 5. 4 2. 1. 30 60 90 120 156 0. 30 60 90 120 150 10 10 8. 7. 8 3. 1 1. 30 60 90 120 156 30 60 90 120 150