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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nancy took a breath and gathered her thoughts. she imagined that passin…
a high - security area for a contagious specimen
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complete the frequency table for the following set of data. you may opt…
| Interval | Frequency | |----------|-----------| | \(0 - 9\) | \(2\) | | \(10 - 19\) | \(7\) | | \(20 - 29\) | \(7\) | | \(30 - 39\) | \(6\) | | \(40 - 49\) | \(1\) |
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use ( n = 6 ) and ( p = 0.5 ) to complete parts (a) through (d) below. …
\(\sigma_{x}\approx1.40\)
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use ( n = 6 ) and ( p = 0.5 ) to complete parts (a) through (d) below. …
\(3.00\)
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what percent of the 7th graders in the school of rock play drums? round…
27%
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use ( n = 6 ) and ( p = 0.5 ) to complete parts (a) through (d) below. …
| \(x\) | \(P(x)\) | | ---- | ---- | | \(0\) | \(0.0156\) | | \(1\) | \(0.0938\) | | \(2\) | \(0.2344\) | | \(3\) | \(0.3125\) | | \(4\) | \(0.2344\) | | \(5\) | \(0.0938\) | | \(…
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according to an almanac, 70% of adult smokers started smoking before tu…
For part (a), \(\mu_X=np = 200\times0.7=140\), \(\sigma_X=\sqrt{np(1 - p)}=\sqrt{200\times0.7\times(1 - 0.7)}=\sqrt{42}\approx6.5\). For part (b), the mean of a random variable \(…
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school of rock what percent of the 7th graders in the school of rock pl…
\(19.0\%\)
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according to an almanac, 70% of adult smokers started smoking before tu…
\(6.5\)
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question a survey stopped men and women at random to ask them where the…
\(79\)
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in a recent poll, the gallup organization found that 45% of adult ameri…
\(0.1138\)
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in a recent poll, the gallup organization found that 45% of adult ameri…
C. The experiment is performed a fixed number of times. D. The trials are independent. E. The probability of success is the same for each trial of the experiment. H. There are two…
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fragments, comma splices, and run-on sentences. identify the following …
D. Correctly Punctuated
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welcome to the 1920s, a time of unprecedented prosperity in america! af…
- Lower taxes encouraged businesses to invest more (as they had more post - tax profits) and consumers to spend more (due to increased disposable income from economic growth like …
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question 5 partnerships are subject to flow - through taxation, which m…
C. The partnership doesn't pay a federal income tax and instead, each individual partner will pay taxes on profits earned
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9) three scatterplots are shown below. place the order of the correlati…
B. II, I, III
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2 set venn diagrams: deck of cards a deck of cards is categorized by wh…
What fraction of all the cards are Black? \(\frac{1}{2}\) What fraction of all the cards are 10 or greater? \(\frac{4}{13}\) What fraction of all the cards are Black and 10 or gre…
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college classes: how many students are taking math? how many students a…
How many students are taking math? \(21\) How many students are taking science and history? \(8\) How many students are taking math and science, but not history? \(9\)
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in a local high school, there are 244 seniors. of those seniors, 108 ar…
\(8\%\)
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question 1 of 10 the principle of cooperative federalism means that the…
D. the federal government
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a survey was conducted at a local ballroom dance studio asking students…
a) \(58\) b) \(34\) c) \(37\) d) \(19\) e) \(6\)
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which of the following best describes anecdotes in persuasive writing? …
Short, personal stories that authors use to emphasize a point
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5. when trying to make sense of a young childs behavior, adults can be …
D. All of the above.
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which of the following persuasive techniques can be defined as \a creat…
Figurative language
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u.s. population a $3x + 150$ b $18x + 235$ c $5x + 236$ d $13x + 270$
C. \(5x + 236\)
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college classes: how many students are taking math? how many students a…
How many students are taking math? \(41\) How many students are taking science and history? \(6\) How many students are taking math and science, but not history? \(12\)
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read the sentence. then answer the question that follows. the music of …
D. Sleepy
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select the correct answer. which phrase in paragraph 11 serves as the b…
C. while they drove virtual laps
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the number of kites flown increases with more wind. identify the relati…
number of kites flown depends on how much wind
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water pressure the water pressure at different depths in a swimming poo…
Part A: \(20.46\) psi Part B: \(21.46\) ft
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question 5 why was the land especially important to native american com…
It provided natural resources for survival and spiritual meaning.
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what change, if any, is necessary in the underlined portion in the foll…
to the bear cub when
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the table shows the population of a small town from 1996 to 2004. p is …
\(18.62\)
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which of the following equations best models the information in the tab…
\(y = 0.006x^{2}+0.245x + 0.012\)
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sleep disorders a survey finds that 19% of americans suffer from a slee…
\(0.551\)
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27. a sample of $n = 36$ scores is selected from a normal distribution …
a. The z - score is $z=-3$, and the sample mean is an extreme value. b. The z - score is $z = - 1.2$, and the sample mean is a typical (representative) value.
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26. suppose that a researcher developed a drug that she claims increase…
The sample mean is not an especially unlikely result.
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a. for a random sample of $n = 4$ people? b. for a random sample of $n …
a. The probability of randomly selecting a score less than \(X = 52\) is \(0.3085\). b. The probability of selecting a sample of \(n = 9\) scores with a mean less than \(M = 52\) …
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select the correct answer from each drop - down menu. the following his…
The data in the histogram is quantitative. Anabelle's score should be added to bin \(60 - 70\). The total number of students who scored less than a \(70\) is \(5\).
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14. scores on a standardized reading test for fourth - grade students f…
a. $0.8413$ b. $0.9772$ c. $0.9962$
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select the correct answer. what is the strongest relationship you can i…
A. causation
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select the correct answer. the table shows the number of hours hazel wo…
B. \(6,10,16,20,25\)
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select the correct answer. charlie gathered data about the time it take…
D. No, because the correlation coefficient is closer to 0 than to 1, which indicates a weak association between the variables.
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13. a population forms a normal distribution with a mean of $mu = 85$ a…
a. $z = 0.5$ b. $z = 0.75$ c. $z = 1$ d. $z = 1.5$
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select the correct answer. a florist gathered data about the weekly num…
C. 87
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12. a sample of ( n = 64 ) scores has a mean of ( m = 68 ). assuming th…
The z - score for part (a) is \(4\)
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select the correct answer. the ages of the people who attend a weekly y…
B. I and II
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select the correct answer from each drop - down menu. the table shows t…
Based on the curve of best fit, the town had approximately \(1500\) people when it was incorporated, and the population grew around \(10\%\) each year. There is a strong positive …
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select the correct answer. trevor drew lines of best fit for two scatte…
A. Only line A is a well - placed line of best fit.
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question 8 (true/false worth 2 points) (02.03a lc) the feeling or idea …
- For the first statement (about connotative meaning): true. - For the second statement (about thesaurus use): true.
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4. a sample is selected from a population with a mean of μ = 100 and a …
a. The expected value of \(M\) is \(100\) and the standard error of \(M\) is \(5\). b. The expected value of \(M\) is \(100\) and the standard error of \(M\) is \(2\).
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over several years, stephon gathered data about his age and the time it…
A. 163 seconds
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the owner of a fruit stand gathered data for a week about the number of…
A. only plot A
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renee uses data from the bureau of labor statistics to create a graph f…
A. A source note for the data.
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readworks 1. before you start reading... here are the vocabulary words …
- advocate: champion, recommend - humanitarian: philanthropic, altruistic - legislation: bill, amendment - mobilize: marshal, gear up
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read the passage. the woman in the last apartment down the hall was som…
C. a person who hates or mistrusts other people
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lesson 5: democracy and self - rule (1750 - 1919) 1 labor movements, so…
- Means of production: A. Examples are factories and mines - Capitalism: C. An economic system in which business is privately owned - Surplus value: B. The difference between a bu…
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three out of seven students in the cafeteria line are chosen to answer …
35
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read the passage and study the image from sugar changed the world. the …
The illustration shows what a Great House looked like from the outside, while the text explains what a Great House looked like from the inside.
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dont be serious. the shopkeeper smiled at david as if he were just tell…
Belittling, Uncomplimentary
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which one means focusing on mans accomplishments? humanism skepticism s…
- For "Which one mean's focusing on man's accomplishments?": Humanism - For "Which one means to doubt?": Skepticism - For "Which one means to be well - rounded?": Humanism
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the term agrarian means * factories industrial farming clothing subsist…
1. Farming 2. Growing just enough to get by and perhaps a little bit more
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11.) true or false: a short way to explain the means - extremes propert…
11. False 12. True 13. False
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which one means to doubt? individualism skepticism classicism which one…
- First question: B. Skepticism - Second question: A. Humanism
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which one means to doubt? individualism skepticism classicism which one…
- For "Which one means to doubt?": Skepticism - For "Which one means to be well - rounded?": Humanism
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which one means to focus slightly less on religion, and instead focus w…
- La respuesta a la primera pregunta es "Secularism". - La respuesta a la segunda pregunta es "Classicism".
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what does the word enaissance\ mean? rebirth art spring clear se what t…
- For the first question: Rebirth. - For the second question: Religion & Survival. - For the third question: Greece & Rome.
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which one means focusing on mans accomplishments? humanism skepticism s…
1. Humanismo 2. Escepticismo 3. Humanismo 4. Secularismo
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what does the word renaissance mean? rebirth art spring what two things…
- **¿Qué significa la palabra "Renaissance"?** Rebirth - **¿Qué dos cosas valoraban más las personas en la Edad Media?** Religion & Survival - **¿De qué dos culturas se inspiró el…
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which of these correctly edits the sentence to reflect the fact that th…
According to Dr. James Peterman, "It is extremely important to drink enough [water] every single day."
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read this excerpt from immigrant kids, by russell freedman. now the exa…
One doctor drew chalk marks on immigrants with health problems.
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15. the two sets of data below represent the number of runs scored by t…
C. mean \(A<\) mean \(B\), standard deviation \(A>\) standard deviation \(B\)
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what is the difference between dramatic irony and verbal irony? (1 poin…
Dramatic irony is when the audience knows something that contrasts with a character’s expectations, while verbal irony is when someone says something that is the opposite of what …
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what is the meaning of the statement -30 < -5? 30 is greater than 5 30 …
minus 30 is less than minus 5
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why does situational and dramatic irony often contribute to the develop…
They cause the reader to think beyond the surface level and their own expectations.
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after the constitution was signed, benjamin franklin said: *... i agree…
The Constitution is not perfect, but considering all the different points of view of the men at the convention, it is remarkably good.
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what is the difference between connotation and denotation? (1 point) co…
Connotation is the associations attached to a word, and denotation is a word’s literal meaning.
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use the sentence to answer the question. after taking a job as a delive…
Every road was connected, and each was harder to traverse than the one before it.
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in a scatter plot or diagram, what is it called when all the points lie…
B. correlation
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what is the most likely reason an author would use fewer hyperboles in …
The text has a serious tone.
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determine whether the graph shows a positive correlation, a negative co…
Negative correlation. As the years pass, the United States birth rate (per 1000) is decreasing.
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determine whether the graph shows a positive correlation, a negative co…
C. no correlation
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which table most accurately organizes the data from the graph? table a …
Table A
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question 7 of 10 a painting that uses symbolism shows objects that: a. …
C. are meant to represent something else.
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17. are the events \airline b\ and \30 minutes to 1 hour late\ independ…
b. \(0.6\)
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read the passage from the opinion of the court in brown v board of educ…
logical evidence, because Warren is drawing a reasonable conclusion that segregating children is psychologically harmful
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read the passage from chapter 8 of the prince. agathocles, the sicilian…
The evidence uses stories of historical figures to support the claim.
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select the correct answer. read this sentence from \the cask of amontil…
B. an unskilled person who claims special knowledge in a specific field
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billions of dollars are spent on advertisements and marketing about the…
Consumers spend too much money on health and beauty products in hopes of attaining their ideal body image.
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what type of correlation is shown between the two variables in the scat…
B. negative
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7. which account type requires you to leave your money in the bank for …
7. C. Certificate of Deposit (CD) 8. A. They often have higher savings rates and fewer fees 9. C. Money added to your account 10. D. Your paycheck sent electronically to your bank…
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douglas opens a homemade stand. he models the daily profit, ( f(x) ), i…
B. The amount of profit made each day
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what is the difference between a common item you can buy in a store, li…
B. The artistic sponge has meaning.
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mr. smith, a history teacher, gave a 10 - question quiz. he recorded th…
The data is spread out from 6 to 10 correct answers.
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economic systems: africa nigeria and kenya are examples of command - le…
Three Questions to be Answered by Economic Models: 1. What should the nation produce? 2. How should the nation produce it? 3. Who should it be produced for? Three Basic Types of E…
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are these complete sentences, or is one of them a fragment? gwen stacys…
Complete Sentences
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foa/algebra 1 unit 3a: factoring & solving quadratic equations notes pr…
For the first graph: Zeros: \(x = 1\) & \(x = 3\) \(y=(x - 1)(x - 3)\) For the second graph: Zeros: \(x = 2\) & \(x = 5\) \(y=-(x - 2)(x - 5)\) Solving a quadratic equation really…
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what does stat mean in statutory a. rebels b. sits c. stands d. im not …
C. stands
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3. in list ( l_3 ) calculate the change in ( x )-values using deltalist…
C. dollars per guest
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are these complete sentences, or is one of them a fragment? the tour gr…
Fragment