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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sort the words according to the meanings of their shared roots. cerebel…
- brain: cerebellum, craniocerebral, cerebral, intracerebral - together: community, converge
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select the word or phrase that is redundant and can be removed without …
descriptive
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question 2-3 constructed response: your answer will be scored with the …
The rate of change is \(4.2\). It means that for each additional dollar the company spends on advertising, the company's revenue increases by \(4.2\) dollars. When the company spe…
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una moneda se lanzará dos veces y cada lanzamiento será anotado como ca…
Espacio muestral: $CC, CX, XC, XX$ Suceso en el que el segundo lanzamiento cae en cruz: $CX, XX$
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lettuce 3 kg @1.20/kg 3.60 subtotal 3.60 total tendered 4.00 change 0.4…
C. Good Groceries charges 1.20 dollars per kilogram of lettuce.
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in president roosevelts speech he said this was a date that would live …
C. Something bad that will live on forever
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a health organization collects data on hospitals in a large metropolita…
the hospital with 310 beds
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select the word or phrase that is redundant and can be removed without …
approximately
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one statistic used to measure a countrys wealth is its gross domestic p…
Countries with higher GDPs tend to have higher life expectancies.
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in the decathlon event at large track meets, male athletes compete in a…
This data point weakens the correlation.
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an official for a regional baseball league examines attendance data for…
Losses and attendance have a strong, negative association.
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fuel efficiency, measured in miles per gallon, is a feature often consi…
\(-0.898\)
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to investigate the influence of distracted driving, 13 volunteers were …
reaction time \(2.1\) seconds, stopping distance \(60\) feet
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the scatterplot illustrates the relationship between two quantitative v…
weak and nonlinear.
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question 2 - 5 constructed response: work and answer will be scored wit…
The rate of change is \(4.2\). It means that for each additional dollar the company spends on advertising, its revenue increases by \(4.2\) dollars.
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nancy put 80 acorns in her backyard. then, she made a graph of how many…
16
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______ is the name of a free - market economic system in w ch most fact…
For the first question: B. Capitalism. For Question 25: A. Most means of production and distribution are privately owned and operated for profit.
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the scatterplot illustrates the relationship between two quantitative v…
positive and nonlinear.
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finally, you want to test if listening to more angsty music increases b…
correlation analysis
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what is a collection of facts, such as numbers, words, measurements, ob…
A. Data
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next, you play the song \bad guy\ while measuring billies brain activit…
analysis of variance (ANOVA)
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consider the given density curve. suppose that the mean value is 3.67. …
\(3.6\)
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which inferential statistic should you use to test if billies visual co…
t - test
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the graph shows the distribution of the length (in seconds) of videos o…
97.35%
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what would the height need to be for this curve to be a density curve? …
\(\frac{1}{6}\)
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you measure brain activity while billie listens to each song. the brain…
interval
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the graph shows the distribution of weights (in pounds) of male duck - …
\(95\%\)
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records show that oliver is typically 10 - 30 minutes late for his shif…
70%
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which inferential statistic should you use to test if she sees more blu…
t - test
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the graph shows the distribution of the number of text messages young a…
The distribution is approximately Normal, with a mean of 128 messages and a standard deviation of 30 messages.
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the graph shows the distribution of the cost of drinks at a popular cof…
95%
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which statement about the graphs is true? graph a graph a is a valid de…
Graph B is a valid density curve because the curve is above the horizontal axis, and the area under the curve is \(1\).
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the area shaded gray in the boxplot is the * interquartile range mean m…
interquartile range
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what is the second difference for the table below. a 3 b -2 c 1 d 4
A. 3
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select the word or phrase that is redundant and can be removed without …
about her life
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consider the given density curve. what is the value of the median? 8 12…
14
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the graph shows the distribution of the amount of time (in minutes) peo…
86 minutes
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select the word or phrase that is redundant and can be removed without …
"possibly"
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a student is writing a report about the indo - european language family…
- English and German: Speaker populations - Spanish, French, Romanian: History - Hittite: History - Latvian and Lithuanian: Geographic distribution
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the graph shows the distribution of the lengths (in seconds) of videos …
49.85%
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the data from your study are billies rankings for how loudly she hears …
ordinal
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which graph represents a strong negative correlation?
The first graph (the top - most graph among the options) represents a strong negative correlation.
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based on the information in the table, which linear equation best predi…
$S = 2,909y+50,091$
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33. motor vehicle accidents during a recent year, there were 13.5 milli…
The probability that it is not a truck accident is \(\frac{9350}{9439}\approx0.9906\)
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carlos runs a lemonade stand. he sells lemonade in different cup sizes …
1. Yes 2. \(0.25\) 3. For every \(8\) ounces of lemonade, the price increases by \(\$2\)
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a machine at a food - distribution factory fills boxes of rice. the dis…
\(66.9\%\) (Option D)
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sort the words according to the meanings of their shared roots. extrase…
- **outside**: extrasensory, extracranial, extravagant, extraordinary - **seek**: conquest, unquestioned
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sort the words according to the meanings of their shared roots. excavat…
- hide: decryption, encrypt, encryption - hollow: excavate, cavity, cavernous
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sort the words according to the meanings of their shared roots. materni…
- **Mother**: maternity, matrilineal, matriarch - **Eight**: octopus, octuplet, octet
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sort the words according to the meanings of their shared roots. detoxif…
- **poison**: detoxify, intoxicate, toxicology - **water**: aquamarine, nonaquatic, semiaquatic
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sort the words according to the meanings of their shared roots. disease…
- **the opposite of:** disease, disallow, disgrace - **across:** transport, transect, intransigent
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sort the words according to the meanings of their shared roots. antipat…
- **new**: novelty, novice - **against**: antipathy, antibiotic, antihero, antidote
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2. find the standard deviation * here are the foot lengths (in centimet…
C. \(Sd = 2.52\)
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sort the words according to the meanings of their shared roots. voracio…
- **eat**: voracious, voracity - **same**: simile, simultaneous, similarity, similar
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the graph shows the distribution of the length (in seconds) of videos o…
\(97.35\%\)
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1. find the range * the level of various substances in the blood influe…
A. 1.8
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the graph shows the distribution of the amount of chicken (in ounces) t…
\(47.5\%\)
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the graph shows the distribution of the number of text messages young a…
34%
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pre - test the graph shows the distribution of time (in hours) that tee…
The distribution is approximately Normal, with a mean of 14 hours and a standard deviation of 4 hours.
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31. crimes committed the numbers show the number of crimes committed in…
The probability that a randomly selected crime is a motor - vehicle theft is \(0.11\). The probability that a randomly selected crime is not an assault is \(0.92\)
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histogram of data histogram of d0$new the data distribution has a: * ne…
negative skew
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the graph shows the distribution of the amount of chicken (in ounces) t…
15.85%
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sort the words according to the meanings of their shared roots. ovulate…
- one; alone: monomania, monologue - egg: ovulate, ovary, ovule, ovoid
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the area shaded gray in the boxplot is the * interquartile range mean m…
interquartile range
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the graph shows the distribution of the number of text messages young a…
16%
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sort the words according to the meanings of their shared roots. maritim…
- **free**: liberator, liberalize - **sea**: maritime, marina, marine, mariner
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the graph shows the distribution of weights (in pounds) of male duck - …
95%
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the data from your study are billies rankings for how loudly she hears …
ordinal
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context clues 3.7 directions: read each sentence and determine the mean…
1. Definition: Give someone a right or claim to something. Clues: "act like being a part of the Witherspoon family entitled him to a piece of everything on campus". 2. Definition:…
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the graph shows the distribution of the number of text messages young a…
218
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sort the words according to the meanings of their shared roots. prenata…
- follow: sequel, sequential - born: prenatal, native, nature, nativity
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consider the given density curve. suppose that the mean value is 3.67. …
\(3.6\)
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27. game of craps in a game of craps, a player wins on the first roll i…
The probability that the game will last only one roll is \(\frac{1}{3}\)
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data collected from a coffee shop indicate that the price of a drink fo…
\(0.833\)
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taylors computer randomly generate numbers between 0 and 4, as represen…
12.5%
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consider the given density curve. what is the value of the median? -10 …
\(-6\)
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21. human blood types human blood is grouped into four types. the perce…
a. \(0.12\) b. \(0.48\) c. \(0.57\)
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which graph represents a density curve, and why? graph a only, because …
graph A only, because the curve is above the horizontal axis, and the area under the curve is 1
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which graph represents a density curve, and why? graph a only, because …
graph A only, because the area under the curve equals 1, and the curve is above the horizontal axis.
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consider the given uniform density curve. what is the value of the mean…
\(4.5\)
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if a fair coin is tossed five times, the probability of getting exactly…
\(\frac{5}{16}\)
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question 6 when e - commerce goes electronic, the means of paying for g…
Electronic
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what would the height need to be for this curve to be a density curve? …
\(\frac{1}{6}\) (the second option)
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multiple choice 2 points if a fair coin is tossed five times, the proba…
\(2\)
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18. drawing a card if a card is drawn from a deck, find the probability…
a. \(\frac{1}{52}\) b. \(\frac{1}{26}\) c. \(\frac{1}{26}\) d. \(\frac{1}{2}\) e. \(\frac{1}{2}\)
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which statement would a judicial activist most likely make? ○ \interpre…
"Interpretations of the Constitution must change because its authors could not foresee modern life."
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read this text. online review websites, where people may anonymously le…
yes
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linear equations w/ distribution (lev 2) this is the only question in t…
\(x = 3\)
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15. rolling two dice if two dice are rolled one time, find the probabil…
a. \(\frac{1}{9}\) b. \(\frac{7}{36}\) c. \(\frac{1}{6}\)
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fill in the blank (use the word bank below) 36. moses interceded for th…
36. High Priest 37. Egypt 38. redeemed 39. Jesus 40. apart 41. cleansing 42. obedience 43. Leviticus 44. Jubilee 45. Mediator 46. relationship 47. rainbow 48. rests 49. acceptable
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multiple choice 2 points the table below shows the average hourly wages…
The right - hand scatter - plot.
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if a fair coin is tossed four times, the probability of getting exactly…
\(\frac{1}{4}\)
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multiple choice 2 points if a fair coin is tossed four times, the proba…
\(y=-2x + 3\)
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which is a correct comparison of sandwich prices based on the histogram…
Fewer shops sell sandwiches for under \(\$10\) near City College than near Main Line University.
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the dotplot below displays 26 students scores on a 30 - point statistic…
The distribution of quiz scores is skewed left with a center around 24 and varies from 12 to 30. There are possible outliers at 12, 14, 15, and 16.
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one drive - through car wash facility offers three different types of w…
\(55.8\%\) (the fourth option)
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stuart bought a candy bar that cost 90 cents. he gave the cashier a $1 …
The left - most tree - diagram (the one with \(1\) dime at the top) is correct. Because when calculating the change of \(10\) cents (\(100 - 90\)), having \(1\) dime (\(10\) cents…
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select the word or phrase that is redundant and can be removed without …
"each year"
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what does justice fortas mean by this statement? schools cannot ban stu…
Schools cannot ban students from expressing a particular opinion if it does not interfere with their education.
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what percentage of trains were late in this particular week? 27.6% 38.2…
$27.6\%$ (the first option)