THis is r。
The data (uspop) gives the decade-by-decade population of the United States (in millions) as recorded by the decennial census for the period 1790–1970. Load the data.
1. Use names() and seq() to add the years 1790 – 1970 to the data vector.
2. Obtain the inter-decade differences. Which decade had the largest increase in US population?
Using diff we can see that 1960 decade had the largest population increase in US
THis is r。 The data (uspop) gives the decade-by-decade population of the United States (in millions)...
5. 120 pointsy A census of the population of the United States is taken every 10 years. The following table lists the population, in thousands of people, from 1960 to 2018. Use the Population (in thousands) 1960 ļ 1970 1980 1990 2000 179,323 203,302 226,642 249 633 281,422 308,746 327,200 divkled differences to approximate the population of the US in the presidential election year 2016
5. 120 pointsy A census of the population of the United States is taken every...
(a) Census data for the United States between 1790 and 1950 are
given in the table above. Construct a logistic population model
using the data from 1790, 1840, and 1910. (Assume that t
is years since 1790 and P is population in millions. Round
all coefficients to four decimal places.)
P(t) =
(b) Construct a table comparing actual census population with
the population predicted by the model in part (a). Compute the
error and the percentage error for each entry...
Consider the following Year Population (in millions) 1790 1800 1810 1820 1830 1840 1850 1860 1870 1880 1890 1900 1910 1920 1930 1940 1950 3.929 5.308 7.240 9.638 12.866 17.069 23.192 31.433 38.558 50.156 62.948 75.996 91.972 105.711 122.775 131.669 150.697 (a) Census data for the United States between 1790 and 1950 are given in the table above. Construct a logistic population model using the data from 1790, 1860, and 1930. (Assume that t is years since 1790 and P...
i need 13,14 and 15 please
The table shows the population P (in millions) of the United States from 1800 to 1870 where t represents the number of years since 1800. Source: U.S. Bureau of the Census 5.3 10 7.2 9.6 30 129 40 17.0 50 23.2 60 31.4 70 39.8 12. Use a graphing calculator to find an exponential growth model and a logistic growth model for the data. Then graph both models. 13. Use the models from part...
The data below are the number of cattle on farms in the United States (in millions) for each year that begins a decade from 1910 to 2010. Draw a box plot for the data below. Are there any outliers? If so, what are they? 58.0, 71.4, 64.9, 70.0, 74.5, 98.9, 114.4, 112.3, 95.4, 99.8, 91.9.
Use this information to answer Questions 9 – 16 below. The following table summarizes U.S. Census data for the southern region of the United States for the census years 1900 through 1990. t (years after 1900) 0 10 20 30 40 50 60 70 80 90 P (millions) 24.52 29.39 33.13 37.86 41.67 47.20 54.97 62.81 75.37 85.45 Use the 4th degree interpolating polynomial to predict the 1985 population for the southern region. Only enter the number, in millions, rounded...
am at a loss here am I
dividing the percentages or multiplying something. the year and the
population I think any help please and thanks
日か Insert Draw Page Layout Formulas Data Review ViewHelp AutoS gtq1eU 44 urban.xlsx - Excel Tell me what you want to do Cut AutoSum A General E Copy Ein- | 의·ム ヨFEE 트트 를Merge & Center. : Conditional Format as Cell Insert Delete Format Sort &Find & Filter Select B l u. $. % ,...
Shown below are rental and leasing revenue figures for office machinery and equipment in the United States over a 7-year period according to the U.S. Census Bureau. Use this data and the regression tool in the data analysis tool pack to run a linear regression. Based on the formula you get from the regression output, answer the following questions: a) What is the forecast for the rental and leasing revenue for the year 2011? b) How confident are you in...
STATS Use the R function rnorm() to simulate selecting a random sample of size 25 from a population with mean 80 and s.d. 20. The goal here is to show how contamination affects the mean, s.d., and z-scores. (a) Obtain the sample mean and sample sd of the simulated sample and use them to obtain the z-score for 100. (b) Create the vector contam = c(0,seq(1000,10000,length=21)) To show the effects of contamination, separately add each value of contam to the...
its
8 different graphs
in the United States in 2017, approximately 61.3% of the population was non-Hispanic white, with the remained being racial or ethnic minorities. How representative was Congress in 2017? Make sure that the Time Line is set to 2017. Use the Legend to identify the race or ethnicity associated with the color of each slice of the ple and click on the "White" slices of ple to determine the percentage of Representatives and Senators who were not...