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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students at hillsdale high school were polled regarding their favorite …
\(58.82\%\)
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roy builds custom - made bicycles. the frames come in 10 sizes and 2 co…
20
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as part of a food drive, three friends collected canned food. what perc…
\(46\%\)
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teachers at burlington elementary school asked students to name their f…
\(20\%\)
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the jefferson administration advocated which of the following changes a…
B. Reducing the scope of activities of the federal government
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by studying the suffix of \fallacy,\ a reader can conclude it means \wi…
"the state of being false"
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read the excerpt from act 1, scene 2, of the tragedy of macbeth. duncan…
Weren't our captains, Macbeth and Banquo, dismayed by this?
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use the given data values (a sample of female arm circumferences in cen…
\(-1.28,-0.52,0,0.52,1.28\)
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does the result suggest that a sample proportion is an unbiased estimat…
A. Yes, because the sample proportions and the population proportion are the same.
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wray has lollipops are randomly selected. the sample spaces for possibl…
For the first question: B. Yes, both the mean of the sample proportions and the population proportion are \(\frac{1}{3}\) For the second question: A. Yes, because the sample propo…
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select the outlier in the data set. 77 69 95 78 85 92 94 8 if the outli…
The outlier is \(8\) and the mean would increase.
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when two births are randomly selected, the sample space for genders is …
| Sample proportion of girls | Probability | |----|----| | \(0\) | \(\frac{1}{4}\) | | \(0.5\) | \(\frac{1}{2}\) | | \(1\) | \(\frac{1}{4}\) | The mean of the sample proportions (…
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select the outlier in the data set. 6 53 55 60 63 67 68 69 70 71 73 75 …
increase
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select the outlier in the data set. 9 69 81 84 85 86 90 98 99 if the ou…
increase
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there is a positive correlation in the data set. there is a negative co…
There is a positive correlation in the data set.
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kessler noted that google will launch additional phones through its onl…
extra
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select the outlier in the data set. 2 44 54 55 57 60 62 71 if the outli…
increase
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evidence means to: imagine. exude profusely go through provide grounds …
provide grounds for
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cause means : a race in which competitors must negotiate obstacles the …
an entity that produces an effect
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linear association, positive correlation linear association, negative c…
linear association, positive correlation
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contradict means to: be in opposition to represent in or produce a cari…
be in opposition to
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what type of association and correlation are shown by the scatterplot?
Positive association and moderate correlation.
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in ohio, for example, navigators wont be allowed to compare and contras…
differentiate
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in the sentence above, analyzed has the same or almost the same meaning…
studied
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what type of association is shown by the scatterplot?
No association.
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in this sentence, approximate means to: make widely or publicly known j…
judge tentatively or form an estimate of
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the federal court hearing would be one of the most significant in histo…
important in effect or meaning
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first read: concept vocabulary identify the choice that best answers th…
B. an abandoned dog sitting alone in the rain
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which describes the correlation shown in the scatterplot? there is a po…
There is a positive correlation in the data set.
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an extremist for justice, and i would rather be an extremist for justic…
He compares the civil rights movement to previous historical struggles, showing that radical actions often lead to meaningful change.
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characterize has the same or almost the same meaning as: portray shelte…
A. portray
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first read: concept vocabulary identify the choice that best answers th…
A. The road is completely underwater.
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predict means to: speak in a very quiet or muffled voice utter aloud, o…
make a guess about what will happen in the future
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\thank you everyone for your kind words and overwhelming support.\ sour…
encouragement
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read the following lines taken from the star by h.g. wells, and identif…
Pretty women, flushed and glittering, heard the news told jestingly between the dances, and feigned an intelligent interest they did not feel. “Nearer! Indeed. How curious! How ve…
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read the excerpt from chapter 1 of wheels of change. in less than a dec…
statistics
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for questions 37 - 38: landon opened a new credit card to purchase a $5…
37) \(y = 48x+500\) 38) \(y=\$2228\)
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what does a positive correlation indicate? a. both variables decrease t…
1. C. Both variables increase together 2. C. The other variable decreases
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what is the purpose of drawing a line of best fit? a. to show the overa…
1. a. To show the overall trend in the data 2. b. They help visualize relationships between two variables
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what does a scatter plot with no correlation look like? a. points scatt…
- First question: A. Points scattered randomly - Second question: D. A data point significantly different from others
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how can outliers affect a scatter plot? a. they have no effect on the s…
- First question: B. They can distort the overall trend and affect the line of best fit - Second question: D. A line that represents the average direction of data points
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read the sentence below and answer the question that follows. \a man sh…
glowing light
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some pieces of music might have many meanings -- the compositions of ch…
C. support
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pickering. higgins: im interested. what about the ambassadors garden pa…
Liza does not understand the intended meaning of Higgins.
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read the text and answer the questions. day 17; theme youve probably he…
33. B. To let the reader make a connection between the saying and character’s experience. 34. D. If you plan ahead and arrive early you will be at an advantage.
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support for the u.s. government and tech companies restricting false in…
2
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some pieces of music might have many meanings --- the compositions of c…
C. support
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first read: comprehension identify the choice that best answers the que…
C. visions of things that are not there
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my assignments half a world away, mount tambora had exploded in indones…
C. revolting to look at
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part a read the following paragraph from \the feather pillow.\ alicia l…
- Part A: B. dazed - Part B: B. after a long moment
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my assignments half a world away, mount tambora had the tuned by nathan…
C. revolting to look at
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first read: selection vocabulary identify the choice that best answers …
A. became less
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the slope of a linear equation represents the rate of a scatter plot cr…
1. rate of change 2. predictions 3. \(y\) - intercept 4. strength
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a graph that displays data points representing two variables is called …
1. scatter plot 2. two - way 3. observation 4. upward
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what is a key characteristic of a scatter plot? a. points representing …
1. a. Points representing data pairs 2. d. Independent variable
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what kind of trend is shown by an upward line on a scatter plot? a. no …
First question: d. Positive association Second question: b. The relationship between two variables
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what is the relationship between two variables if the points on a scatt…
a. Linear relationship; d. Dependent variable
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what kind of data is best visualized using scatter plots? a. nominal da…
1. c. Bivariate data 2. a. By the closeness of the points to a line
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unit 2 end of unit recovery points (#3) ffor this problem (#3), you may…
a. No. When \(n = 15\), \(12\times15=180\) and \(135+4.5\times15 = 202.5\), and \(180<202.5\). b. \(n>18\). The artist makes a profit when she sells more than \(18\) necklaces.
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what is the equation of the trend line in the scatter plot? use the two…
\(y=\frac{1}{2}x+\frac{1}{2}\)
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inadequate means: astonishing deficient handy important
deficient
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dunk means: pout blaze dip mumble
dip
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lug means: haul fantasize reveal itemize
haul
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intersection means: stamps icebox dried grape crossing
crossing
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cozy means: fast dreadful snug entire wfp english vocabulary 430
snug
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epic means: secret heroic tiresome pitiful
heroic
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glorify means: exalt hear doodle burn
exalt
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scarce means: holy rare adorable skeptical
"rare"
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dominate mean: trot brush inquire rule
rule
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odyssey means: wall painting adventurous journey insomnia baggage
adventurous journey
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seclude means: isolate broadcast hearten sparkle
isolate
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compassionate means: very tired naughty sympathetic minuscule
sympathetic
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flee means: hide run away solve yell
run away
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quote means: eliminate repair drag cite
cite
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incomparable means: devious inactive matchless villainous
matchless
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caroussel means: drape betrayer rivalry merry - go - round
merry - go - round
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moral means: confidential ethical sad monetary
ethical
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scare means: laugh softly frighten wed print
frighten
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relocate means: move nap expand recollect
move
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heal means: push scream leap cure
cure
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deficiency means: witchcraft bed comforter paper - folding inadequacy
inadequacy
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slam means: bang go around regard highly decay
A. bang
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kingdom means: realm fun absence hurrah
realm
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trek means: garland journey rehearsal thud
journey
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hammerlock means: inhabitant wrestling hold favorable occasion billfold
wrestling hold
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icing means: frosting sickness rafter jester
frosting
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occurrence means: secret writing tadpole happening freight
happening
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disinfectant means: mania destiny germicide young sheep
germicide
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forbid means: sob weep create prohibit
prohibit
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serpent means: bun snake grump esteem
snake
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bawl means: respond cry trip blossom
cry
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sluggish means: amusing imprecise slow to move wide
slow to move
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12. using image c above, the deeper meaning of the political cartoon is…
12. B. The Bill of Rights protects the American People from possible misuse of Government. 13. D. He/she believes the best way to protect the American people from the abuse of gov…
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crumble means: slap disintegrate concede eliminate
disintegrate
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elevated means: receptive high vicious shaky
high
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infuriate means: enrage direct take back impair
enrage
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extract means: pull out admire decline chuckle
pull out
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epicurism means: annoyance charge tip luxury
luxury
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laborer means: myth occurrence worker victory
worker
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topple means: spy overturn enlist regard highly
overturn