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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five eretmochelys imbricata, a type of sea turtle, each have a nest. th…
A. The mean of the original data set is greater than the mean of the new data set.
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what is the meaning of gullies as used in the passage? caves streams di…
C. ditches
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the lengths of lumber a machine cuts are normally distributed with a me…
(a) $0.3723$ (b) $0.0165$
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a machine is set to fill milk containers with a mean of 63 ounces and a…
Yes, because the z - score ($2.27$) is not within the range of a usual event, namely within $2$ of the mean of the sample means.
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use the graphing tool at the right to create a scatter plot for the dat…
The data are best modeled by a quadratic function.
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the height of women ages 20 - 29 is normally distributed, with a mean o…
$0.9996$
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their route took them through the park, where a soccer game was going o…
There is no correct option provided among A and B based on the analysis. If we had to choose the most reasonable option from the given ones, since the text clearly shows Jenna's f…
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find the indicated probability and interpret the result. from 1975 thro…
$0.4245$
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the annual salary for one particular occupation is normally distributed…
The mean is $\mu_{\bar{x}} = 129000$, and the standard deviation is $\sigma_{\bar{x}}=3651$.
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the population mean and standard deviation are given below. find the re…
$0.7517$
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the graph of the waiting time (in seconds) at a red light is shown belo…
Graph (b) most closely resembles the sampling distribution of the sample means, because $\mu_{\bar{X}} = 19.5$, $\sigma_{\bar{X}}=1.15$, and the graph has the correct mean and sta…
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a population has a mean $mu = 151$ and a standard deviation $sigma = 20…
The mean is $\mu_{\bar{x}} = 151$, and the standard deviation is $\sigma_{\bar{x}}\approx2.582$.
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temperatures in pittsburgh (°f) the temperatures in pittsburgh, pa for …
Mean: \(84.83\), Median: \(85\), Mode: \(85\), Range: \(23\), IQR: \(9.5\)
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heights of performers (inches) the heights of students (in inches) who …
Mean: 63.25 Median: 63.5 Mode: 65 Range: 24 IQR: 3.5
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share what you already know about division. do you know how to divide? …
Division is an arithmetic operation to split a quantity into equal parts. To divide, one can use long - division for large numbers or multiplication tables for small numbers. It m…
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read the passage from chapter 17 of the prince. nevertheless he ought t…
that a prince should only be cruel when necessary
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the points scored by a football team are shown in the stem - and - leaf…
8, 12, 13, 14, 17, 20, 23, 24, 24, 27, 28, 28, 28, 30, 37, 38
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8. green giant daycare center purchased new furniture for its toddler r…
(a) - 340 (b) $V(t)=-340t + 3650$, $0\leq t\leq10$ (c) $V(8)=930$. It means the value of the furniture 8 years after purchase is $930$.
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find the mean, median, and mode of the data set: 6.3, 4.4, 5.2, 4.4, 5.…
Mean: $6$, Median: $5.4$, Mode: $4.4$
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find the mean, median, and mode of the data set: 4, 7, 11, 5, 14, 9, 7,…
Mean: $9.875$, Median: $8$, Mode: $7$
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melody earns $50 each week mowing lawns. she wants to put 30% of her ea…
15
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melody earns $50 each week mowing lawns. she wants to put 30% of her ea…
15
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coach palmer had been our trusted friend for many years, and all of the…
ostracized
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during reading: as you read \the value of a sherpa life\ label any inst…
- Grayson Schaffer writes about the Sherpas, mountain workers who help climbers reach the top of Mount Everest. - He explains that Sherpas take the biggest risks but are often pai…
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find the range and interquartile range (iqr) for the monthly rainfall (…
Range: 180, IQR: 60
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4. a plumber’s fee schedule can be modeled with a linear function using…
(a) $\$50$ (b) $\$20$ per hour (c) $C(0) = 50$. It means the customer pays the service - charge of $\$50$ when the plumber does not work any hours (just arrives at the house).
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the box - and - whisker plot for the average amount of time (rounded to…
Minimum: 60, First Quartile ($Q_1$): 70, Median: 80, Third Quartile ($Q_3$): 85, Maximum: 100
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read the passage from chapter 17 of the prince. nevertheless a prince o…
They suggest that a ruler who is feared can retain power, while a ruler who is hated is less likely to do so
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2. (a) a long - distance company charges a monthly fee of $4.95 and $0.…
| $x$ | $f(x)$ | | ---- | ---- | | 0 | $4.95$ | | 15 | $5.25$ | | 30 | $5.55$ | | 45 | $5.85$ | | 60 | $6.15$ | (b) Initial value: $4.95$, Rate of change: $0.02$ (c) $f(x)=0.02x +…
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its 1929. the twenties are still roaring. people are spending tons of m…
B. plain
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which of the following statements is true? remember: outliers are 1.5 i…
C. The player with a height of 86 inches is an outlier to the data set represented.
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which of the following statements is true? remember: outliers are 1.5 i…
C. The player with a height of 86 inches is an outlier to the data set represented.
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which two of the following statements are true? remember: the iqr descr…
C. The heights of the middle 50% of the players represented by the data display differ by 6 inches.
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remember: a “majority” is greater than 50%. a a majority of the players…
C. 66 players are at least 77 inches tall.
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what do you think gompers meant when he said \workers must emancipate t…
Workers must fight for their own rights and freedoms.
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what does \independence\ mean in these sentences? students in mr. wus a…
the state of not needing something
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what does \dependent\ mean in these sentences? baby raccoons are totall…
needing someone
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writing to sources the preamble to the constitution and the bill of rig…
No specific answer provided as the task is to choose an amendment and write the extended definition following the given guidelines.
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make a word that means \cannot do what is needed.\ mis less un depend a…
undependable
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make a word that means \the state of needing something.\
dependence
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read the lines from the poem. the azure stars in languor having known t…
C. The stars shine down on the speaker's head, acknowledging his isolation.
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30. a cars value is a function of many things, including the total mile…
$f(50000)\approx 8000$, which means the car's value is about $\$8000$ when it has 50,000 miles on it. The range of the function is $2000\leq y\leq14000$.
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what does \depend\ mean? to protect someone or something to need someon…
to need someone or something
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what does \distinction\ mean in these sentences? hue joined the band la…
what you have that makes you different
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what does \distinctively\ mean in these sentences? i recognized my frie…
in a way that is likely to be different
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make a word that means in a way that is not easy to recognize. en disti…
indistinctly
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make a word that means \likely to be clearly different.\
distinctive
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make a word that means ot easy to recognize.\ in mis under distinct
indistinct
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the following were calculated from the times (in minutes) that 10 indiv…
The mean will decrease and the range will decrease.
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multiple choice question how can we learn to think critically and avoid…
B. Start by considering the common obstacles to critical thinking.
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what is the difference between a fictional narrative and a nonfictional…
Fictional narratives are imaginary stories, whereas nonfictional narratives are based on true events.
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the following were calculated from the times (in minutes) that 10 indiv…
The mean will decrease; The range will decrease.
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the following were calculated from the times (in minutes) that 10 indiv…
Mean: 1.45, Median: 1.2, Mode: 1.2, Range: 1.25, IQR: 0.5
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determine word meanings using context clues 5 - quiz - level d o. but m…
a difficult act that shows courage
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determine word meanings using context clues 5 - quiz - level d i - read…
The clue "aren't big and strong" helps understand the meaning of "frail" as "weak".
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at the end of the semester, mrs. johnson allows her students to drop th…
A. Jonah's average test score will increase.
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determine word meanings using context clues 5 - quiz - level d. \i dont…
The clues "aren't big and strong" and "tiny" help understand "frail" means "weak".
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determine word meanings using context clues 5 - quiz - level d. “i dont…
The clues "aren't big and strong" and "don't get enough sun and water. They're probably tiny" help understand "frail" means weak.
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a shoelace company makes shoelaces of differing lengths. the production…
Neither A nor B is correct. If considering measure of center only, the average length of the shoelaces will increase by 3 cm.
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determine word meanings using context clues 5 - quiz - level d. my frie…
The clues "There is no way that actual seeds are truly from Mars" help understand the meaning of "authentic" as real.
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should juveniles be charged as adults? (the argument against charging j…
1. The main difference is that being charged as an adult means facing long - prison sentences, time in adult prison, and a permanent criminal record, while being charged as a juve…
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multiple choice question not every problem has a clear - cut solution, …
A. uncertainty
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3. what does the word slight mean in the line so big its quite a sight?
Something worth seeing or a remarkable view.
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22. suppose that the future population of a town t years after january …
\(P(10)=165\), which means the population of the town in thousands on January 1, 2005 is 165, so the actual population is 165,000.
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determine word meanings using context clues 5 - instruction - level d. …
The clue "endless sneezing" helps understand the meaning of "endure" as it shows the difficult situation the narrator was in.
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determine word meanings using context clues 5 - instruction - level d. …
The clue "stood out brightly against the gray buildings" helps understand what "vivid" means.
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29. what term describes the total area under the normal distribution cu…
C. Probability
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28. what is the primary goal of using sample statistics? a. to estimate…
A. To estimate characteristics of a population
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the following table gives the data for the average temperature and the …
The regression line is $\hat{y}=82.174 - 2.048x$ and the regression equation is appropriate for making predictions.
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26. why is it important to tie a sample statistic like the mean back to…
B. To make accurate inferences about the entire group.
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25. if a sample mean is 50 with a standard deviation of 5 and the sampl…
B. 1
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23. when evaluating a project, which metric effectively combines risks …
C. Expected value
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4. ms. noel conducted a poll across all her classes to determine their …
A. 60%
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ms. noel conducted a poll across all her classes to determine their pre…
A. 60%
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question 10 1 pts why do prescriptive grammarians often criticize the u…
They believe it violates the rules of Latin grammar. It leads to confusion in meaning. It creates ambiguity in sentences. It is considered nonstandard and informal.
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question 9 according to linguistics, double negatives cancel each other…
False
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what percent of ms. noels students prefer vanilla? block 1 block 2 bloc…
62%
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19. which confidence level corresponds to a z - score of 1.96? a. 95% b…
A. 95%
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18. what is the meaning of bias in statistics? a. a systematic error th…
a. A systematic error that can affect the accuracy of results, often caused by improper sampling or experiment design
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1. what is the meaning of revenue? a. the positive gain or advantage re…
C. The amount of money earned from a business decision or investment
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which best defines the beat generation? a literary and social movement …
a literary and social movement promoting spiritual intellectualism and deconstruction of rules regarding creative expression
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10. a distribution has a mean of 50 and a standard deviation of 4. what…
B. 2
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which values in the ordered data set would be considered outliers? 21, …
To determine outliers, we first need to find the first quartile ($Q_1$), the third quartile ($Q_3$), and the inter - quartile range (IQR). 1. **Find the median (Q2)**: - There are…
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find the range and interquartile range (iqr) of the data set: 8.5, 10.0…
Range: 2, IQR: 1
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find the range and interquartile range (iqr) of the following data set.…
Range: 25; IQR: 20
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review the passage. the hyperbole is shown in bold. it was spring now, …
It shows that Shirley feels nervous.
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which data values of the following set are outliers? 32, 38, 38, 40, 42…
B. 72
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what is the iqr of the following data set? 32, 38, 38, 40, 42, 44, 46, …
B. 11
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what is the range of the following data set? 32,38,38,40,42,44,46,48,49…
B. 40
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review the passage. the allusion is shown in bold. right then, there we…
It illustrates how attractive sailing is.
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question 8 a basket contains 25 marbles. there are 3 red marbles, 7 gre…
A. $\frac{3}{5}$
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regarding use of the media, spin can best be defined as a) simply stati…
B. casting a positive light on negative facts.
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review the passage. the simile is shown in bold. the desert flowers, so…
It contributes to a feeling of wonder.
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the legal right to expatriation means that you have the right to a) be …
C. renounce your citizenship.
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what is the iqr of the data set represented by the box - and - whisker …
C. 13
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review the passage. the allusion is shown in bold. john usually tried t…
It implies that the company is large and formidable.
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according to francis ching, \a technique for describing three - dimensi…
Linear Perspective
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mitch writes a conclusion on \my view on improvising the primary educat…
The conclusion is a bit longer than the body of the essay
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review the passage. the metaphor is shown in bold. kusiq glanced back t…
It contrasts the warmth of Kusig's breath to the cold weather.
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just then alice ran across the duchess. she tucked her arm affectionate…
It demonstrates the Queen's anger.