统计与概率
数据分析、概率分布、假设检验与统计方法。
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a dealer finds that the average price of a previously owned vehicle is …
The minimum price is $\$7290$ and the maximum price is $\$9222$.
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as the boy grew to be a teenager, he became more defiant with his mothe…
The boy began to disobey his mother.
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the coded log book proved decipherable with the help of a few simple eq…
C. able to be understood
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dc stats chp1 & chp2 sections 2.1 - 2.3 fall 2025 1. consider the follo…
a. 5 - number summary: $0,3,5,7,32$; Mean: $9.2$ b. Range: $32$; IQR: $4$
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the testing times for a group of college students were normally distrib…
68% of testing times were between 27.5 minutes and 32.5 minutes. 95% of testing times were between 25 minutes and 35 minutes. 99.7% of testing times were between 22.5 minutes and …
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leveled practice for 6 and 7, complete the information to compare the 6…
For question 6: Sam's unit rate: 10; For Bobby, use (1,12) and (2,24); Bobby's unit rate: 12; Bobby For question 7: Pauli's Pizzeria: 15; Leo's Pizzeria: 10; Pauli
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3.2 measures of spread: empirical rule the army finds that the head siz…
1. 21.7, 23.5 2. 20.8, 24.4 3. 19.9, 25.3
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amir records the number of customers who order hummus at his mediterran…
15
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question 13 6.67 pts how did notable abolitionists william lloyd garris…
Each abolitionist used stories and their “voice” to educate and inspire freedom for enslaved people.
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chapter 3.2 homework score: 51/102 answered: 20/33 question 21 3.2 meas…
1. 64.5, 69.5 2. 62, 72 3. 59.5, 74.5
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students at javis school perform community service hours by volunteerin…
50%
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3.2 measures of spread: empirical rule the mean gpa for 50 students was…
The percentage of data that occurs within one standard deviation of the mean should be 68%. The percentage of data that occurs within two standard deviations of the mean should be…
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the idiom \from the horses mouth\ means \from a source with personal kn…
B. It creates a whimsical mood because the phrase suggests that the horses are suddenly able to speak.
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were ratified by the states. they became the first ten amendments to th…
1. D. Approve or pass an amendment 2. B. Carry out a law 3. E. System where the national government shares power with state governments 4. C. A representative form of government 5…
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rearrange the sentence below to remove any wordy sections. do not chang…
It is important that T.V. networks require shows to cast characters of various body types.
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3.2 measures of spread: standard deviation and variance to determine if…
The mean pain level (VAS reading) before Reiki treatment is higher than the mean pain level after the treatment. The data points for pain levels before Reiki treatment are more sp…
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rearrange the sentence below to remove any wordy sections. do not chang…
Facebook's privacy policy should prohibit parents from sharing photos of their underage children.
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rearrange the sentence below to remove any wordy sections. do not chang…
Video games are the highest forms of art because they are interactive.
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4. mens weights are normally distributed with a mean of 180 pounds and …
a. $2.4$ b. $3$ c. The female student's weight is more extreme because her Z - score of 3 has a larger magnitude than the male student's Z - score of 2.4.
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chapter 3.2 homework score: 38/102 answered: 12/33 question 13 3.2 meas…
The mean pulse - rate after running in place for one minute is higher than the mean pulse - rate before exercise. The standard deviation of pulse - rates after running in place fo…
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what does the word acrimonious mean? prone to biting or attacking highl…
angry or bitter in words or behavior
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rearrange the sentence below to remove any word - section. do not chang…
Driverless cars may present more risks than benefits.
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multiple - choice question consent of the governed means that the power…
the power to govern is in the hands of the people; if there's a government, it's because the people allow it to exist.
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rearrange the sentence below to remove any wordy sections. do not chang…
It is Farquaad's obsession with perfection that stems from his deep insecurity.
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rearrange the sentence below to remove any wordy sections. do not chang…
Because Thomas helped design the Maze, he is one of the story's villains.
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rearrange the sentence below to remove any wordy sections. do not chang…
English teachers should integrate modern communication styles like Tweeting and texting into their classes.
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environment are shown in the table. teenage driving | | daily | sometim…
30
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rearrange the sentence below to remove any wordy sections. do not chang…
Despite the rise of word processors, learning cursive benefits young students.
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question 1 of 5 select all the correct answers. which data sets could b…
4, 11, 8, 12, 1, 6, 14; 6, 8, 11, 1, 7, 14, 10; 14, 10, 6, 9, 11, 8, 1; 10, 6, 9, 14, 1, 6, 12, 7
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what does the coexistence of islam and traditional religions in west af…
Cultural integration occurred through selective adoption and blending
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the following text is adapted from nathaniel hawthornes 1837 story dr. …
D. An extraordinary
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several state governments tried to raise money by printing extra curren…
Cause 1: The Articles did not say only Congress had the power to coin currency. Cause 2: States could print their own money, leading to different state - specific currencies. Caus…
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starting at noon, michael observed the amount of snow on his lawn durin…
The amount of snow on the lawn at 12:01 p.m.
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wyatts math teacher finds that theres roughly a linear relationship bet…
The number of hours a student should spend on their homework to expect a score of 82 on the quiz.
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where x is the temperature, in degrees fahrenheit (°f), and y is the nu…
The slope of the linear model represents an expected change of 3.3 people for every 1 - degree Fahrenheit increase in temperature. Based on this linear model, when the temperature…
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“before he knew where he was, they had startled the constellations and …
B. inactivity
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otavio good created a useful phone app. it assists those who are not fa…
B. translates
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read this sentence from passage 1. \the hours came forth to harness the…
C. joy
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unit: learning across disciplines progress the movement of the progress…
"The design offers a space - saving feature as well—circular stairs and ramps take up less space than traditional horizontal structures." (paragraph 7)
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culture : un tour de la nouvelle - calédonie use the space below to wri…
1. For "La géographie", "Les habitants", "La vie rurale", "La mer et la terre": Research and write relevant facts. 2. "La crème solaire": Sunscreen 3. "une robe" in English: A dre…
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read the following: he told her he was sorry for what he had done. she …
curse
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question 9 (1 point) saved listen if canada is running a deficit in its…
D. the nation must be running a surplus in its capital account
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a parking lot can hold cars and small trucks. the scatter plot shows ho…
3.1
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the scatter plot shows how many desks and computers were found in 12 di…
2
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1. what does annie’s mother mean when she compares herself and annie’s …
The meaning of the metaphor is that their situation was difficult and un - nurturing. Regarding how they saved him, more context is required.
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una ruleta con 8 sectores de igual tamaño se compone de 4 sectores de c…
$\frac{1}{2}$
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una bolsa con 10 canicas contiene 3 canicas de color azul y 7 canicas d…
$\frac{0}{10}$
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normal distribution: area above or below a point you might need: calcul…
0.0228
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una bolsa con 6 canicas contiene 1 canica de color azul, 2 canicas de c…
$\frac{1}{2}$
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which statement is true? length (ft) age (years) this scatter plot has …
This scatter plot has one cluster and one outlier.
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for making a scatter plot of the data set, which would be the best scal…
0 to 4 with intervals of 0.2
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una ruleta con 12 sectores de igual tamaño se compone de 5 sectores de …
$\frac{5}{12}$
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a set of elementary school student heights are normally distributed wit…
$0.4247$
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use the scatter plot. which value is the best estimate for the correlat…
# Explicación: ## Paso 1: Analizar la dispersión de los puntos Observando el diagrama de dispersión, los puntos no se alinean claramente en una línea ascendente o descendente. Tam…
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normal distribution: area above or below a point you might need: calcul…
$0.2266$
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2. why is the idea of egyptian death rituals significant to annies fath…
Annie's father may find Egyptian death - rituals significant due to their spiritual, cultural, and historical value and expect appraisal as they are rich in heritage and meaning.
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choose all values of the correlation coefficient, r, that indicate a st…
A. $r=-0.85$, D. $r = 0.90$
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una bolsa con 6 canicas contiene 2 canicas de color azul, 1 canica de c…
# Explicación: ## Paso1: Calcular el número de canicas no azules El número de canicas no azules es el número de canicas amarillas y rojas. Hay 1 canica amarilla y 3 canicas rojas,…
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read paragraphs 10, 11, and 12 from the passage. what is the authors ma…
The collapse of marriage is the primary cause of child poverty in the United States.
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events a and b are independent. p(a) = 3/5, and p(b) = 7/15. what is p(…
$\frac{7}{25}$ or $0.28$
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evan created this graph to compare the number of students in each grade…
The vertical - axis does not start at 0, differences between the number of students in each grade seem larger than they actually are.
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question 3 of 3 \during the attack in lower manhattan, a thick layer of…
B. To cover
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select the correct answer what does the word homage mean based on the c…
None of the above options are correct definitions of "homage" in this context. But if we had to choose the closest in spirit to showing respect (which is what "homage" implies), n…
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select the correct text in the passage. which phrase provides the best …
replacing and rebuilding parts of the house
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match each term with its definition or description. isolationism, blitz…
- isolationism: a foreign policy where a nation chooses to stay out of world affairs - blitzkrieg: a German term meaning "lightning war" - radar: a device that uses radio waves to…
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select the correct answer. what does the word doted mean based on the c…
D. to show a lot of attention
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problem 1 a large sample of females had their systolic blood pressure m…
Since the mean of the data is 125 and the given option A has its peak at a value other than 125, no correct option is shown. If we were to draw a correct normal distribution, it w…
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the lifespans of tigers in a particular zoo are normally distributed. t…
0.15
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chapter 3.2 homework score: 12/102 answered: 8/33 question 9 3.2 measur…
Mean: $14.03$ Median: $13.70$ Sample standard deviation: $8.35$
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the lifespans of lions in a particular zoo are normally distributed. th…
97.5
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read the selection and choose the best answer to each question. one tod…
It asks for the reader's appreciation of the beauty of ordinary things.
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the lifespans of gorillas in a particular zoo are normally distributed.…
84
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the equation for the line of best fit is y = 1.8x + 1. according to the…
Labrador retrievers typically weigh about 1 pound when they are born.
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3.2 measures of spread: standard deviation and variance for the sample …
Find the mean: $15.77$ Find the median: $16.90$ Find the sample standard deviation: $8.89$
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informational text conclusions quick check what should a writer avoid w…
They should avoid restating the thesis.
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which sentence from the excerpt best supports the answer to question 7?…
C. "Thomas Putnam felt that his own name and the honor of his family had been smirched by the village, and he meant to right matters however he could"
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2. according to the text, what was machiavellis central philosophy rega…
The end justifies the means in achieving political goals
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what does the following passage mainly reveal about reverend parris (pa…
D. He seems to care as much about his position and reputation as he does about Betty’s health.
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read the sentence. andrews boss turned down his ideas, so andrew went b…
Andrew started coming up with new ideas.
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2. you have a lot to think about regarding what it means to be an a pat…
People can retain Jewish heritage while being patriotic Americans by participating in Jewish cultural and religious activities within the American pluralistic framework, celebrati…
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read the sentence. on days when i go jogging in the morning, my mind se…
A. It explains why jogging is beneficial. C. It creates a compound - complex sentence.
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a school fundraiser sells 1,200 raffle tickets. each ticket costs $2. t…
loss of $1.83$
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members of a step team perform dances involving stepping and clapping i…
$3.2$
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drag each label to the correct location on the image. during the 1960s,…
Martin Luther King Jr.: nonviolent forms of protest, content of a person's character Malcolm X: Nation of Islam, equality by any means necessary, Black nationalism, end of segrega…
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which occupational group is included in the transportation, distributio…
B. Material Moving
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in a freshman high school class of 80 students, 22 students take consum…
$P=\frac{11}{40}+\frac{1}{4}-\frac{1}{20}$
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the brazilian samba is an upbeat, rhythmic dance performed at celebrati…
34
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there are four multiple - choice questions worth 3 points each and two …
3.4
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read the sentence. before the main performance, the audience was entert…
Before the main performance, the comedian entertained the audience.
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an ice - skating rink kept track of which ice skates customers rented. …
Of all the customers, 15% rented hockey skates and are adults.
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julio has two bags of gummy candies. one at a time, he randomly pulled …
0.07
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the weights, in pounds, of mikes five pet dogs are listed below. what i…
12
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researchers recently conducted an experiment to understand how we use r…
D. Participants who were provided with a ranking of the museums spent disproportionately more time reading about the British Museum.
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economists kerwin kofi charles and melvin stephens jr. investigated a v…
A. At each point on the political orientation scale, high - information voters were more likely than low - information voters to vote.
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multiple choice question which word root means up? ○ ana- ○ mmut- ○ cat…
ana-
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multiple choice question which word root means change? ○ ana- ○ an- ○ m…
C. mut-
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what is the meaning of the prefix an- (as in anaerobic metabolism)? o c…
Without
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multiple choice question which word root means air? - -strat - cata- - …
C. aer-
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multiple choice question which word root means down? o an- o mut- o -zy…
E. cata-
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what is the meaning of the word root ana- (as in anabolism)? down up ch…
B. Up