Statistiques
Analyse de données, distributions de probabilités et tests d'hypothèses.
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construct a 95% confidence interval to estimate the population mean usi…
Lower limit: $40.57$, Upper limit: $47.43$
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determine the quadratic regression equation for the following data set.…
202.6115
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1. you wouldnt know by looking at them—they might look strong and confi…
1. c 2. a 3. e 4. d 5. b
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read the excerpt from my story. here it was, half a century after the f…
The anger black people felt.
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question 20 of 23 in what way did the printing press most affect the pr…
D. The printing press eliminated the Catholic Church's control over the creation and distribution of Bibles.
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1. how did the geography of the arabian peninsula influence the lives o…
1. The arid geography made them nomadic herders. 2. Organized into tribes with a chief; kinship was important. 3. Major trading hub and religious center with the Kaaba. 4. Most sa…
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bell ringer response sheet: week of _ monday mistakes: fix the capitali…
**Monday Mistakes**: 1. The hardworking young man went on to graduate school at Crozer Theological Seminary in Chester, Pennsylvania. 2. No error. 3. King studied the ideas of peo…
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select the definition of import that the sentence uses. import \\im - p…
No se puede determinar sin la oración correspondiente.
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use the drop - down menus to complete the statements. the interaction o…
total supply and demand
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microeconomics and macroeconomics use the drop - down menus to complete…
1. microeconomics 2. equilibrium 3. macroeconomics
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question 2 (3.334 points) a frequently used source of information about…
Question 2: D. the media, official government statistics and self - reporting surveys Question 3: C. objectivity
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which of the following are not examples of data? a. facts b. figures c.…
C. theories
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a roller coaster designer is considering the possibility of using quadr…
# Explicación: ## Paso 1: Completar el trinomio cuadrado perfecto Comenzamos con la función $y = 2x^{2}-40x + 217$. Sacamos factor común 2 del primer y segundo término: $y=2(x^{2}…
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which of the following are not examples of data? a. facts b. figures c.…
C. theories
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what does it mean when world war i is referred to as a \total war\? man…
The war efforts needed the participation of as many people as possible.
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a frequency table of grades has five classes (a, b, c, d, f) with frequ…
A. 11.36%, B. 31.82%, C. 40.91%, D. 13.64%, F. 2.27%
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the function $f(x)=x^{6}-5x^{4}+4x^{2}$ has the graph shown below. thou…
No, the Fundamental Theorem of Algebra is not incorrect. The function \(f(x)=x^{2}(x - 1)(x + 1)(x-2)(x + 2)\) has a root \(x = 0\) with multiplicity 2, and roots \(x=1\), \(x=-1\…
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below are the jersey numbers of 11 players randomly selected from a foo…
Range = 88 Sample variance = 849.2 Sample standard deviation = 29.1 What do the results tell us? B. Jersey numbers are nominal data that are just replacements for names, so the re…
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julio distributed a survey to his fellow students asking them how many …
B. The model indicates that students who spent 0 hours playing sports will have an average mood rating of 5.
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8. what did f.d. roosevelt mean when he said that \freedom from war is …
C. A by - product of peace is the ability to work on achieving our wants.
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please read the associated packet and respond to the questions. if you …
1. **Astronomy - 1**: Naked - eye observations. 1. **Astronomy - 2**: An ancient astronomical instrument for measuring celestial body altitude, time - keeping, and navigation. 1. …
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identify the type of sampling used (random, systematic, convenience, st…
B. Random sampling
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state whether the data described below are discrete or continuous, and …
D. The data are continuous because the data can take on any value in an interval
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determine whether the data described below are qualitative or quantitat…
A. The data are quantitative because they consist of counts or measurements
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the plot shown below describes the relationship between students scores…
1. D. $\hat{y}=x$ 2. 88
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determine whether the underlined number is a statistic or a parameter. …
Statistic because the value is a numerical measurement describing a characteristic of a sample.
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question 13 a researcher would like to estimate p, the proportion of u.…
B. 1,737
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danila breeds peregrine falcons. she recorded the breadth (in mm) of ea…
$-4$
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find the mean, median, mode of the following data. 1) 5, 3, 2, 6, 5, 2,…
1) mean: 4, median: 5, mode: 5, range: 4 2) mean: 15, median: 12, mode: 10 and 12, range: 14 3) mean: 13, median: 13.5, mode: None, range: 15 4) mean: 18, median: 17, mode: None, …
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question 12 a study was conducted to estimate μ, the mean commute dista…
C. 196
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determine whether the sampling method described below appears to be sou…
A. It is flawed because it is a voluntary response sample
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when looking at output, which is true? the country with the highest per…
1. the country with the lowest per unit opportunity cost has the comparative advantage and should specialize in that product 2. supply and demand for the goods and services offere…
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question 11 a study was conducted to estimate μ, the mean number of wee…
A. Using a sample of size 400 (instead of 81) D. Using a 90% level of confidence (instead of 95%)
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determine whether the given source has the potential to create a bias i…
C. There does not appear to be a potential to create a bias. The organizations collecting the data are reputable.
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a. what is the range of each group? b. which group had the larger stand…
The distribution of home - coming dresses has a larger standard deviation and is more spread out because its standard deviation is $15$ while the standard deviation of home - comi…
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a study was conducted to estimate μ, the mean number of weekly hours th…
C. 7.7 and 9.3
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question 9 a study was conducted to estimate μ, the mean number of week…
B. 8.5
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question 8 when the sampling distribution of a statistic centers exactl…
A. Unbiased
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question 7 for the following scenario, is the variable is categorical o…
B. Quantitative
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assuming data come from a random sample, under which of the following c…
D. Population distribution is unknown and sample size is 20 individuals.
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question 5 a survey of a random sample of 1,500 young americans found t…
D. 0.017
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a random sample of 160 households is selected to estimate the mean amou…
Question 4: A. We are 95% confident that the mean amount spent on electric service among all households is between $151 and $216. Question 5: The margin of error is 0.017.
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heights of adult males are known to have a normal distribution. a resea…
A. The classes do not allow for the possibility that an adult male could be less than 130 cm tall or greater than 204 cm tall C. The sum of the relative frequencies is 126%, but i…
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based on survey results, the mean amount of credit card debt for u.s. a…
B. A random sample of 2,800 U.S. adults under 35
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a researcher conducted a survey of graduating college students. 350 col…
A. 0.61
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does the frequency distribution appear to have a normal distribution? e…
D. Yes, because the frequencies start low, proceed to one or two high frequencies, then decrease to a low frequency, and the distribution is approximately symmetric.
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a local fast food company sells a 16 - oz soft drink. to determine if t…
B. Hypothesis testing
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the graph displays a residual plot that was constructed after running a…
C. The least squares regression equation overestimates \(y\) more often than it underestimates \(y\).
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the graph displays a residual plot that was constructed after running a…
None of the above options are correct.
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danila breeds peregrine falcons. she recorded the breadth (in mm) of ea…
$-4$
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lizs math test included a survey question asking how many hours student…
C. The model predicts that the score will increase 15 points for each additional hour of study time.
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vera rents bicycles to tourists. she recorded the height (in cm) of eac…
$-1$
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construct the cumulative - frequency distribution for the given data. d…
| Daily Low Temperature ($^{\circ}$F) | Cumulative Frequency | | ---- | ---- | | Less than 40 | 3 | | Less than 45 | 5 | | Less than 50 | 10 | | Less than 55 | 24 | | Less than 60…
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the data plots represent the hours students study each week in two diff…
The mean number of hours a student in Ms. Perry's class studies is approximately \(2.93\) hours. The mean number of hours a student in Mr. Hart's class studies is approximately \(…
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read \literary focus: the medieval period.\ after you read, complete th…
1. Themes: Heroism, honor. Characters: Knights, damsels in distress. Plot - points: Quests, battles. Evidence would vary based on the text. 2. Expectations: Brave, loyal, chivalro…
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refer to the table summarizing service times (seconds) of a fast - food…
The number of individuals included in the summary is 54. The answer to the question "Is it possible to identify the exact values of all of the original service times?" is A. No. T…
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the scatterplot shows the relationship between two variables, x and y. …
4
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the graph shows a bivariate data set and its least squares regression l…
A.
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read the excerpt from the metamorphoses by ovid deucalion soothes pyrrh…
In Baldwin's adaptation, the tone is lighthearted, while in Ovid's original, the tone is serious.
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a standardized value that measures how many standard deviations a data …
1. z - score 2. standard 3. normal 4. Standard Normal 5. probability
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6. if 2x = 12, what is the value of 9x? 7. line k is defined by y = \\f…
54 ### 7.
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if we multiply the first equation by 2, we get 4x + 2y = 8. compare tha…
The system of equations has no solutions.
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if we multiply the first equation by 2, we get 4x + 2y = 8. compare tha…
The system of equations has no solution.
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a total of 50 people attended a conference and were offered a choice of…
$0.14$ or $\frac{7}{50}$
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the table shows the frequency of values in a data set. value frequency …
19 -2
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16 based on a random sample from a population, a researcher estimated t…
A. It is plausible that the actual mean value of the variable for the population is between 19.5 and 21.5. ### 2. Solution for question 17
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the table shows the number of dogs walked by a dog walker each week for…
B. 14
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what is the probability of a coin landing on tails if you toss it 20 ti…
A. 1 out of 2
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what are the odds of rolling a sum of 5 with two die? 1 out of 6 1 out …
1 out of 9
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first read: concept vocabulary identify the choice that best answers th…
A. He meant that the ending mirrored the beginning
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four students spun a spinner with 16 equal sections, numbered 1 through…
Which student's data would be most representative of the spinner? Andrea Which two students would have the largest changes between their data displays? Dominique and Andrea
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identify the explanatory and response variable of the scatterplot below…
The explanatory variable is Hours of TV Per Day. The response variable is Academic Performance (GPA)
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a student examines a scatterplot of shoe size vs. reading ability in ch…
A. A high correlation does not imply causation; another factor (such as age) could explain the relationship.
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10/8 - unit 4.1 quiz(closes at the end of class today!!!) possible poin…
\(r=-0.03,r = 0.42,r=-0.62,r = 0.77,r=-0.98\)
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1) which of the following best describes the difference between a prima…
1. B. A primary source is an original record from the time of the event, and a secondary source analyzes or interprets that record. 2. D. BC and BCE essentially reference the same…
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the indian wars part 1 part a: unscramble and match: instructions: firs…
1. **Part A**: - 1. h. matriarchal - 2. a. agrarian - 3. g. nomads - 4. f. gold - 5. i. reservations - 6. b. Sioux - 7. e. destiny - 8. c. Buffalo - 9. d. eradicated 2. **Part B**…
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the dot - plot shows how many hours this week students in the band prac…
15
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belief in the divine rights of kings means believing that kings are cho…
God.
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el costo total de la matrícula para 12 horas de cursos acreditados en u…
Parte A: C. $C(2)=4137.51$ Parte B: ## Step1: Calcular el valor de $t$ $t = 2028 - 2018=10$ ## Step2: Sustituir $t$ en la función $C(t)=3900\times1.03^{t}$, sustituyendo $t = 10$ …
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read the excerpt from \for the era\. for instance, the constitution gua…
Due process, guaranteed by the Constitution, is inconsistently applied to women, who are excluded
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car crashes in the united states result in high costs. in what areas do…
Money Work Time
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read the excerpt from \eat the era\. opponents of the amendment claim i…
used too many of the original speaker's words
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a bag contains only yellow marbles and red marbles. the probability of …
$\frac{11}{14}$
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which word means \loyalty and devotion to ones nation; competitiveness …
D. nationalism
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which word means “the policy or action by which one nation controls ano…
B. imperialism
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select the one prepositional phrase. a bon mot is a witty response. in …
In French
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4. how does the phrase \like a rude animal walking on two legs\ impact …
D. The phrase provides the reader information to better understand the speaker.
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(4: civil liberties) which right—though not explicitly stated—underlies…
1. Right to privacy 2. Provide counsel to indigent felony defendants
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question 2 of 10 many customers became ill because of the bad meat they…
D. contaminated
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question 10 in data analysis, what is a \trend\? d) a prediction that i…
Question 10: C) A general direction or pattern over time Question 11: C) Line Chart
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which scenarios describe data collected in a biased way? select all tha…
- Josh asked the first 25 people he met at the dog park if they preferred dogs or cats. - For a report on the exercise habits of adults, Sergio talked to 30 adults at a local fitn…
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flowers were used as symbols in ancient rome, victorian france, and man…
C. varied
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the fact that $(3i)^2=-9$ means that $3i$ is a square root of $-9$. che…
$-16$
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in 1962, as nasa prepared for the orbital mission of john glenn - who w…
A. comparable
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11. in a classroom there are 6 students who are 5 1/2 feet tall, 2 stud…
C. $\frac{6(5\frac{1}{2})+2(4\frac{3}{4})+4(4\frac{1}{4})+2(6)}{6 + 2+4 + 2}$
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being handpicked to be one of three black students to integrate west vi…
B. knowledgeable
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question 59 (7: voting and elections) compared to caucuses, primaries g…
Question 59: D. Have higher and more representative turnout Question 60: B. Incumbency advantage
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in the sentence, \commodus was a capricious ruler,\ what does \capricio…
C. Reckless
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question: for the following set of data, find the population standard d…
\(33.61\)
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question for the following set of data, find the population standard de…
\(26.517\)