統計與機率
資料分析、機率分佈、假設檢定與統計方法。
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here is a final opportunity for you to strengthen your knowledge of the…
1. distinctive 2. default 3. repossess 4. comprehend 5. coinciding 6. laid - off 7. prerequisite 8. expenditure 9. fixed 10. contingency
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land or a man with curly black hair. it is one of the great advantages …
Many works signed Anon (that is, anonymous, or "author unknown") may have been written by women.
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question 11 a union executive conducted a survey of its members to dete…
\(0.59\)
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question 11 a union executive conducted a survey of its members to dete…
The probability that at least one of these two issues is important is \(0.59\)
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question 11 a union executive conducted a survey of its members to dete…
\(0.83\)
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a stockbroker knows from experience that the probability that a client …
\(0.77\)
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a stockbroker knows from experience that the probability that a client …
\(0.77\)
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at the county fair, grace took a ride in a hot - air balloon. it was a …
The second graph.
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exam 6 take this exam after you finish lesson 2.3. question 1 what does…
1. B. True or something that really happened 2. A. A story that is imagined 3. B. To wrap up the story or reveal a lesson the reader can take away from the story 4. A. Resolution …
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question 9 the heights of nba basketball players have a normal distribu…
I would not believe this player. Using the z - score formula \(x=\mu + z\sigma\) with \(\mu = 79\), \(\sigma = 3.89\), and \(z = 3.5\), we get \(x=79+3.5\times3.89=79 + 13.615 = 9…
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helmer: what sort of an expression is that to use about our marriage? n…
"I was simply transferred from papa's hands into yours.", "I had been living here like a poor woman.", "I have existed merely to perform tricks for you.", "It is your fault that I…
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question 8 in an examination of purchasing patterns of shoppers, a samp…
Point estimate = $50$ Alpha = $0.10$ Critical Value = $1.711$ Standard error = $0.96$ Margin of error = $\pm1.64$ Confidence interval lower limit = $48.36$ Confidence interval upp…
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question 7 the human resource director of a large corporation wishes to…
Point estimate \( = 6.2\) Alpha \( = 0.05\) Critical Value \(=\pm1.960\) Standard error \( = 0.913\) Margin of error \(=\pm1.789\) Confidence interval lower limit \( = 4.411\) Con…
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question 6 it is also known that customers will spend an average of $17…
The probability that the sample mean is between \(166.75\) and \(170.50\) is \(0.0546\). The probability that the sample mean is less than \(189.50\) is \(0.9893\)
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question 5 it is known that 45% of customers will need additional maint…
The standard error is approximately $0.0718$ and the probability that less than $53\%$ of customers in the sample will need additional maintenance is approximately $0.8665$
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question 4 the probability of a single customer purchasing an extended …
\(0.0465\)
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question 4 the probability of a single customer purchasing an extended …
\(0.0466\)
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use binomial tables the local school district is suggesting that the sc…
- Probability no more than 1: \(0.0035\) - Probability more than 7: \(0.0320\) - Expected value: \(5.2000\) - \(P(2\leq X\leq4)\): \(0.2901\)
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question 2 a company owned vehicle is used for employee trips. the vehi…
1. \(0.0062\) 2. \(0.1525\) 3. \(0.9710\) 4. \(0.9938\)
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a sample of salaries at a distribution center revealed a mean income of…
\(k = 1.6\), at least \(61\%\)
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1. what is the primary purpose of synthesis in writing? a to summarize …
1. B. To combine sources meaningfully 2. A. Connected logically 3. B. A brief question 4. D. Clear 5. D. Consistent 6. C. Evidence 7. C. Signal phrases
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all of the following are principles of interpersonal conflict except: c…
conflict is typically destructive for individuals and relationships.
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use a graphing calculator to find an exponential model for the data bel…
\(y\approx1.98\times1.99^{x}\)
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a company launches a new website and tracks the number of visits to the…
about 650,000
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2) the average life a manufacturers blender is 5 years, with a standard…
E) 0.7745
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3) which of the following would be the most appropriate test of signifi…
B. Matched pairs t test
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is the process of creating meaning through observations and interpretat…
B. Communication
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a sushi restaurant has prepared 28 portions of seafood, two of which ha…
\(0.881\)
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the windshield wipers on a car have not been working properly. the prob…
\(0.25\)
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the table below relates the amount of time consumers spend shopping on …
\(0.54\)
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the table shows the number of cars and trucks that used a certain toll …
\(0.5941\)
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assume that a and b are events. if ( p(acup b)=0.7 ), ( p(a)=0.4 ), and…
\(0.35\)
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the table shows the number of cars and trucks that used a certain toll …
\(0.6070\)
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what is the probability of getting either a diamond or a king when draw…
\(\frac{4}{13}\)
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sales representatives at a car dealership were split into two groups. o…
\(\frac{23}{76}\)
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sales representatives at a car dealership were split into two groups. o…
\(\frac{3}{4}\)
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the accompanying table shows the number of cars of two different brands…
\(0.7286\)
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16. lindsey records the number of minutes, m, it takes her to paint n p…
15 minutes per poster
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12. this graph shows the population of squirrels in a study, modeled as…
True: The squirrel population was decreasing between day 20 and day 50. False: The squirrel population was at its greatest around day 50; The least number of squirrels during the …
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apollo reinspires hector with vigour, brings him back to the battle, ma…
armor plate that protects the chest
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in turn, the coattails effect presumably translates into increased pres…
the impact a candidate can have on others in the same party
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his official functions are not ipso facto suspended by his arrest or th…
the act of making accusations
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i then considered what i should load it with, it being not able to bear…
having great mass and weight and unwieldiness
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but its important to remember that \jersey shore\ is on mtv, a youth - …
advisory
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hussar has the same or almost the same meaning as: cavalryman bureaucra…
cavalryman
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under terms of the conditional discharge agreement tuesday, those charg…
C. probationary
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what she might say next was never certain, and the uncertainty kept him…
condition of heightened watchfulness or preparation
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swain has the same or almost the same meaning as: squire minstrel suito…
suitor
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if six coins are flipped, what is the probability of obtaining at least…
\(\frac{63}{64}\)
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janes just a smart, snarky girl with too-curly hair. source: will grays…
easily irritated or annoyed
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if there is a 1 in 2,500 chance that you will pick the numbers correctl…
\(\frac{2499}{2500}\)
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if the probability that your dvd player breaks down before the extended…
\(0.911\)
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heuristic means : a commonsense rule to help solve some problem sorting…
a commonsense rule to help solve some problem
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we know some people do this but it counts as simony and it is a sin. so…
the buying or selling of religious jobs or privileges
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eristic has the same or almost the same meaning as: antiquarian nonsens…
argumentative
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gnostic means : occurring at or characteristic of a formal induction po…
possessing esoteric knowledge of spiritual things
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select all that apply the primary activities undertaken during the earl…
producing accurate editions of classical writings, copying original manuscripts for wider distribution, translating Greek and Latin manuscripts into Italian.
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read the excerpt from its our world, too!: young people who are making …
including facts and details about the topic.
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adult americans (18 years or older) were asked whether they used social…
D. No, because \(P(\text{uses social media})\) and \(P(\text{uses social media }|35 - 44\text{ years})\) are not equal.
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adult americans (18 years or older) were asked whether they used social…
\( P(\text{uses social media}|\text{35 - 44 years})\approx0.711 \)
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suppose that a computer chip company has just shipped 10,000 computer c…
C. The probabilities are nearly the same.
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which line from \safari day in kenya\ contains an example of assonance?…
"Gazelles race by, blurred brown streaks"
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suppose that a computer chip company has just shipped 10,000 computer c…
\(0.00000100\)
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suppose that a computer chip company has just shipped 10,000 computer c…
\(0.00000090\)
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according to the national center for health statistics, there is a 20.3…
D. No, because the probability is not less than \(0.05\)
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according to the national center for health statistics, there is a 20.3…
\(0.090\)
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due to a manufacturing error, three cans of regular soda were accidenta…
\(0.4091\)
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due to a manufacturing error, three cans of regular soda were accidenta…
No
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due to a manufacturing error, three cans of regular soda were accidenta…
\(0.5455\)
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due to a manufacturing error, three cans of regular soda were accidenta…
\(0.0455\)
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read the excerpt from julius caesar, act 2, scene 1. portia. brutus, my…
Portia is upset because Brutus is behaving as if something is wrong, and he will not confide in her.
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suppose that a spotify playlist has 8 tracks. after listening to all th…
(a) The probability that you like both songs is approximately \(0.107\) and it is unusual. (b) \(0.357\) (c) \(0.536\) (d) \(0.469\)
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suppose that a spotify playlist has 8 tracks. after listening to all th…
\(0.391\)
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read the sentence. the dusk was filled by the coyotes eerie howl. which…
The coyote's eerie howl filled the dusk.
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suppose that a spotify playlist has 8 tracks. after listening to all th…
\(0.141\)
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suppose that a spotify playlist has 8 tracks. after listening to all th…
\(0.536\)
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suppose that a spotify playlist has 8 tracks. after listening to all th…
\(0.357\)
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suppose that a spotify playlist has 8 tracks. after listening to all th…
No
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suppose that a spotify playlist has 8 tracks. after listening to all th…
$0.107$
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this past semester, a professor had a small business calculus section. …
$\frac{1}{30}$
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suppose you just received a shipment of eleven televisions. four of the…
\(1-0.382 = 0.618\)
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suppose each license plate in a certain state has four letters followed…
\(8433216\)
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suppose you just received a shipment of eleven televisions. four of the…
\(0.382\)
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probability counting principle with repetition allowed a car company is…
\(2734375\)
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in a recent harris poll, a random sample of adult americans (18 years a…
18 - to 34 - year - olds are less likely to buy. Because the probability that a randomly selected 18 - to 34 - year - old is more likely to buy a product emphasized as "Made in Am…
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in a recent harris poll, a random sample of adult americans (18 years a…
Since \(0.436<0.616\), 18 - to 34 - year - olds are less likely to buy a product emphasized as "Made in America" than individuals in general.
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in a recent harris poll, a random sample of adult americans (18 years a…
\(0.376\)
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in a recent harris poll, a random sample of adult americans (18 years a…
\(0.264\)
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according to the u s. census bureau, 8.01% of 16 - to 24 - year - olds …
\(0.257\)
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which strategies are most effective to help a reader determine the mean…
- Check for nearby synonyms that may provide a clue to the word’s meaning. - Check surrounding words to see what events are leading up to this word. - Substitute the unfamiliar wo…
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suppose that e and f are two events and that ( p(e) = 0.2 ) and ( p(f|e…
\(0.1\)
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suppose that e and f are two events and that n(e and f)=460 and n(e)=93…
\(0.495\)
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constructing a frequency distribution and a frequency polygon here are …
| Shopping times (in minutes) | Frequency | |-----------------------------|-----------| | \(15.5 - 19.5\) | \(3\) | | \(19.5 - 23.5\) | \(2\) | | \(23.5 - 27.5\) | \(3\) | | \(27.…
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suppose that e and f are two events and that n(e and f) = 460 and n(e) …
\(0.554\)
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suppose that e and f are two events and that p(e and f)=0.1 and p(e)=0.…
\(0.25\)
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the notation p(f|e) means the probability of event given event
The notation \( P(F|E) \) means the probability of event \( F \) given event \( E \).
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random variables and distributions notation for the population proporti…
(a) Sample proportion: $\hat{p}=0.16$ (b) Population proportion: $p = 0.15$
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according to a poll, about 14% of adults in a country bet on profession…
A. \(P(\text{male or bets on professional sports})=0.5200\)
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the sweet encounter is a touring international candy festival. the fest…
(a) Population proportion: \( p = 0.32\) (b) Sample proportion: \( \hat{p}=0.26\)
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according to a poll, about 14% of adults in a country bet on profession…
For part (b): \(0.0650\) For part (c): \(0.5390\) For part (d): B. The assumption was incorrect and the events are not independent.