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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identifying important information aquifers are being depleted at a much…
- the title of the article - the name of the organization - a description of a drought - statistics about water scarcity
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name: 1. which action is most aligned to the goals of using a zero - ba…
b. Be sure to have one or more budget lines for saving so that it doesn't get left as an afterthought
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5. when would you use a pie chart? a. to compare different groups b. to…
C. To show parts of a whole
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4. what is the theoretical probability of rolling an even number on a s…
C. \(\frac{1}{2}\)
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read the words of king claudius in act iv of hamlet. come, gertrude, we…
Royal leaders were concerned with their public image.
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3. what does failing to reject the null hypothesis imply? a. the null h…
B. There isn't sufficient evidence to support the alternative hypothesis
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2. in a set of data, the range is calculated by: a. dividing the sum of…
B. Subtracting the smallest value from the largest value
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1. which formula represents the basic probability calculation? a. ( p =…
d. \(P = \text{Number of favorable outcomes }/\text{ Total number of outcomes}\)
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27. what does it mean to buy a vehicle? a. rent it indefinitely b. pay …
B. Pay to own it completely
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using a random sample of 3417 tv households, acme media statistics foun…
a. The margin of error is \(\pm1.68\%\) b. We are \(95\%\) confident that the true percentage of TV households in the population who tuned into the final episode of "Still Hanging…
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a set of data items is normally distributed with a mean of 100 and a st…
\(50\)
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a set of data items is normally distributed with a mean of 700 and a st…
\(940\)
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22. what does it mean to refinance a mortgage? a. to renovate the home …
d. To replace the existing mortgage with a new one, often with better terms
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choose the correct option below that defines the meaning of inclusion. …
All of the above
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6. the adjective spartan can mean \marked by great self - discipline or…
The word "spartan" is appropriate as Sparta's society was centered around strict discipline, military training, and an austere lifestyle that involved self - denial (e.g., lack of…
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a set of data items is normally distributed with a mean of 60 and a sta…
\(3.5\)
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a set of data items is normally distributed with a mean of 55 and a sta…
\(4\)
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a set of data items is normally distributed with a mean of 75 and a sta…
\(2\)
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scores on the gre (graduate record examination) are normally distribute…
\(99.7\)
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question 8 of 10 leah is studying a pie chart. how should she start int…
C. By finding any segments that are especially large or small
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not everyone pays the same price for the same model of a car. the figur…
47.5
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the scores on a test are normally distributed with a mean of 40 and a s…
\(20\)
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the scores on a test are normally distributed with a mean of 40 and a s…
48
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a game involves rolling a number cube. you get one point if you roll an…
The expected value for the game is \(0\), The game is fair because the expected value is equal to \(0\)
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5. what is a medium? the information used to create a work of art the r…
the means or method used to create a work of art
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consider the function ( g(x)=-x^{2}+14x + 39 ). ( g(x) ) has a discrimi…
- Discriminant: \(352\) - Number of real roots: two - \(g(x)\) has a maximum when \(x = 7\) since the coefficient of \(x^{2}\) (\(a=-1\)) is negative.
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7. the data in the table below shows the number of passengers and numbe…
a. The line of best fit is \(y = 2x+5.25\) b. The estimated number of suitcases is \(685\)
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fill in the blank question rather than holding trials as district court…
appellate
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look at the map. what was the significance of vasco núñez de balboas si…
It meant that Europeans had more potential places to explore and settle.
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15) the length of a book with a fictional story is normally distributed…
\(275\)
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natalie can take one of her three friends with her on a trip to italy. …
No, Nick's suggestion is not fair. Because \(20\) is not divisible by \(3\), each friend cannot be assigned an equal number of numbers, so their probabilities of being selected ar…
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3. what detail gives a clue to the country in which \the strange - look…
the use of the German word "Herr," meaning Mister
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a bag contains four red marbles, three yellow marbles, and three purple…
The probability you select a purple marble is \(\frac{3}{10}\) (correct), The probability you select a green marble is \(0\) (correct)
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3 select the correct answer. read the following sentence from the excer…
D. to set, put down, or place
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20. what detail gives a clue to the country in which \the strange - loo…
the use of the German word "Herr," meaning Mister
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what is the expected number of female children in a family with three c…
\(1.5\)
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select the correct text in the passage. which phrase from \the oblong b…
under my very nose
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1 select the correct answer. read the sentence from paragraph 1. it was…
D. sneak
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the speed of a car traveling on a highway is being recorded once per se…
B. A quadratic model is best based on contextual clues.
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4. why might a teacher be happy to hear her students disagree about whe…
Different perspectives help students understand the book.
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3. what is usually meant by the phrase world literature? stories that c…
literature written by writers from different parts of the world
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find the 5 number summary for the data shown below. 53 59 92 21 89 58 3…
\(19,30.75,58.5,80.75,92\)
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the boxplot below shows salaries for construction workers and teachers.…
75
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the table gives the average automated teller machine (atm) surcharge fe…
B. The error is \(0.01\), and the value predicted by the model is an overestimate.
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$\\sqrt{12}$ is not a whole number because there is no whole number tha…
\(2^{2}=4\), \(3^{2}=9\), \(4^{2}=16\), \(5^{2}=25\), \(6^{2}=36\)
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use the fundamental counting principle to find the total number of poss…
\(\frac{1}{3}\)
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$\\sqrt{55}$ is not a whole number because there is no whole number tha…
\(5^2 = 25\), \(6^2=36\), \(7^2 = 49\), \(8^2=64\), \(9^2 = 81\)
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9. why is it important for a student to become familiar with a wide ran…
These words are used to discuss school subjects in a serious, analytical way.
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in each turn of a game you toss two coins. if 2 heads come up, you win …
The expected value of the number of points for each turn is \(0.25\). Since the expected value \(E(X)=0.25>0\), this game is fair (if \(E(X) = 0\)) or unfair in favor of the playe…
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in basketball, shaquille makes 40% of his free throw attempts. he goes …
\(0.56\)
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in the early 1900s, what did it mean for cities to be \dry\? cities had…
C. Cities restricted the sale and consumption of alcohol.
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question 6 a student says that 1.2 × 10⁴ is larger than 9.8 × 10⁵. do y…
Disagree. \(1.2\times 10^{4}=12000\) and \(9.8\times 10^{5}=980000\), and \(12000 < 980000\).
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you toss two number cubes. if a sum of 7 or 11 comes up, you get 7 poin…
The probability of a sum of 7 or 11 is \(\frac{2}{9}\). The expected value of the number of points for one roll is \(0\).
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what does democracy mean? a rule of the government b rule of the people…
B. rule of the people
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look at this set of 6 numbers: 59 53 61 59 65 81 which value would chan…
median
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look at this set of 7 numbers: 89 65 86 14 42 61 14 which value would c…
mode
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look at this set of 8 numbers: 39 49 80 34 13 78 80 19 which value woul…
mean
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mabel looked at her calendar to figure out how much time she spent baby…
\(2\)
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the manager of a party supply store researched how many balloons it sol…
\(8\)
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aaliyah wrote down how many spelling words she practiced each day. what…
\(7\)
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how did john d. rockefeller horizontally integrate his monopoly in 1882…
He created a trust that controlled ninety percent of the nation’s oil refineries.
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you pick a card at random. what is p(odd or greater than 1)? write your…
\(1\)
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you roll a 6 - sided die. what is p(1 or even)? write your answer as a …
\(66.7\)
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you spin the spinner once. what is p(not even)? write your answer as a …
\(\frac{1}{2}\)
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you spin the spinner once. what is p(less than 5)? write your answer as…
\(66.7\%\)
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you roll a 6 - sided die. what is p(greater than 3)? write your answer …
\(\frac{1}{2}\)
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directions: match the terms in the box to the clues. write the terms on…
1. Akad 2. Sumer 3. Sumerian 4. Akkadian 5. mudbrick wall 6. religion 7. class system 8. Sargon 9. ziggurats 10. divine right 11. a vast territory 12. the north
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you pick a card at random. 6 7 8 what is p(odd)? write your answer as a…
\( 33.3\% \)
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answer the correct answers are: question 11: - 10 question 12: 4x - 8 q…
Question 11: -10 Question 12: 4x - 8 Question 13: 6 Question 14: 3 Question 15: 3, -2 Question 16: 5, -5 Question 17: ±11 Question 18: ±5
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the article states: heres where the science gets more complicated. loud…
A. to remember
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the graph shows the relationship between the total cost and the number …
\(\$100\) (the third option)
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6. what does douglass discover the word \abolitionist\ means? a) a supp…
C. Anti - slavery
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savannah decides to research the relationship between the length in inc…
The predicted length of the catfish is \(35\) inches.
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kayden decides to research the relationship between the length in inche…
33
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jocelyn decides to research the relationship between the length in inch…
\(28\)
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expected value what is the expected value? should you play the game? - …
\(12\)
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write the equation for the expected value. e(v)=\\frac{1}{11}(a)+\\frac…
The expected value \(E(V)=0.45\). A game is fair when the expected value is \(0\).
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students are comparing how long they charge their phones for in hours, …
Nijah. Because usually, more charging hours would lead to a higher charge percentage, but Nijah has 10 hours of charging (the most among them) and only 4% charge, which is inconsi…
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a coin is thrown at random into the given square. what is the likelihoo…
It is likely.
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basics of probability if ( k in a cap b ), which is the most specific l…
II
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which residual plot shows that the model is a good fit for the data?
The third residual plot.
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greg tossed a number cube and recorded the results. the table shows the…
\(\frac{1}{9}\)
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martinas favorite mexican dish is enmoladas con pollo, tortillas filled…
Martina's survey method will not produce a sample that is representative of the people in her neighborhood. The people she plans to survey are more likely than the other people in…
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which point would be on a residual plot of the data? (1,15) (2,11.9) (3…
\((3,0)\)
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multiple choice 10 points what does it mean to use inclusive language? …
Using words that welcome and respect all people
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24. what does civilian control of the military mean?military leaders do…
24. Military leaders do not have any independent authority, but are the servants of the elected representatives of the people. 25. It provides both state and national governments …
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which of the following is the best way of selecting a random sample fro…
Use the student directory, toss a number cube, start from that name, and select every tenth person.
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why is it important to recognize your own biases when writing? so you c…
3. So you can try to write more objectively 4. Accurately summarizing their main points
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question 2 of 10 the chance that something will happen is called ______…
probability
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ing the law of large numbers to a carnival game this is a multi - part …
$a = 4$ $b = 4$ $c=-1$ $d = 4$
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question 1 of 10 which of the following audiences is least likely to be…
A fashion entrepreneur that researches other companies' sales before deciding on designs for their next clothing line release.
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john estimates the value of his car over time. the equation for the lin…
\(a = 14.8\), \(b = 0.1\), \(c = 9\), \(d=-1.1\)
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some residuals for a scatterplot are given. for ( x = 3 ), the residual…
3
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3. the founders established a republican form of government. why did th…
3. They believed elected officials could represent citizens and could be kept in check through elections. 4. People should help one another because the welfare of others affects i…
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a scatter plot and trend line are shown. which statement best explains …
The trend line is a good fit because the total vertical distance between the line and the points in the plot is small.
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use the scatterplot and line of best fit shown to complete the statemen…
The observed value is \(5\), the predicted value is \(7\), the residual is \(-2\)
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29 the supreme court strives to protect freedom of speech and expressio…
content neutrality
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question 10 of 10 which of the following is an example of an aesthetic …
B. A reader feeling terrified by a story's twist ending
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17. where did siddhartha achieve enlightenment? a. in a temple in india…
17. C. Under a fig tree after 49 days of meditation 18. C. Why suffering exists and how to end it
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read the following theme: arrogance leads to ones downfall. how is this…
B. Gatsby thinks that he can recreate the past, which he seeks to do through illegal and destructive means.