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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you randomly draw cards from a standard deck and place them face up on …
$\frac{1}{221}$ (the second option)
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you randomly draw a card from two separate standard decks of cards. are…
Independent, because the outcome of the first event does not affect the outcome of the second event.
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parked in the lot beside a local grocery store are 2 red cars, 9 white …
\(\frac{6}{35}\)
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question 8 10 pts the term compensation means the amount of salary paid…
the amount of salary paid
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you flip a coin three times. what is p(heads, heads, heads)? (1 point) …
\(\frac{1}{8}\) (corresponding to the first option)
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use the data table below to create the given scatter plot, then fill in…
The scatter plot shows a positive correlation because as the plotted values of \(x\) increase, the values of \(y\) generally increase.
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determine whether the following statement is true or false. if it is fa…
A. False, the probability that \(A\) or \(B\) will occur is \(P(A\ or\ B)=P(A)+P(B)-P(A\ and\ B)\)
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determine whether the statement is true or false. if it is false, rewri…
C. True.
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question 2 2 pts in the middle ages, using the phrase \by god\ was acce…
True
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six sales representatives for a company are to be chosen at random to p…
\(\frac{4}{28}\approx0.1429\)
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a shipment of 13 microwave ovens contains 3 defective units. a restaura…
\(0.892\)
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a shipment of 13 microwave ovens contains 3 defective units. a restaura…
\(0.891\)
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a shipment of 13 microwave ovens contains 3 defective units. a restaura…
\(0.891\)
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in a certain lottery, you must correctly select 4 numbers (in any order…
\(4.21\times 10^{-5}\)
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the offices of president, vice president, secretary, and treasurer for …
\(0.085\)
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trusts and laws directions match the words in column 1 with their meani…
1. b 2. f 3. a 4. e 5. l 6. h 7. c 8. i 9. j 10. d 11. m 12. k 13. g
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the offices of president, vice president, secretary, and treasurer for …
\(0.098\)
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a horse race has 12 entries and one person owns 2 of those horses. assu…
\(0.0152\)
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a committee has ten members. there are three members that currently ser…
\(0.0014\)
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assessment (continued) 6. good communication means avoiding discussion …
6. False 7. False 8. True 9. True 10. True
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an environmental agency is analyzing water samples from 78 lakes for po…
74551670
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an environmental agency is analyzing water samples from 78 lakes for po…
69264090
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an environmental agency is analyzing water samples from 78 lakes for po…
\(69888060\)
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a class has 34 students. in how many different ways can four students f…
\(46376\)
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question 9 (10 points) cumulative voting means that each shareholder is…
True
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perform the indicated calculation. \\frac{5 p_{3}}{11 p_{4}} \\frac{5 p…
\(0.0076\)
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perform the indicated calculation. 38c2 38c2 = (type a whole number.)
\(703\)
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5 from unit 3, lesson 6 a researcher creates a scatter plot that displa…
a. The residuals are \(0.087\) and \(-0.033\) b. **Differences**: - The sign: One residual (\(0.087\)) is positive and the other (\(-0.033\)) is negative. - The magnitude: \(|0.08…
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elena collects data to investigate the relationship between the number …
D. 0.9
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perform the indicated calculation. 51p2 51p2 = (type a whole number.)
\(2550\)
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6 from unit 3, lesson 7 the correlation coefficient, r, is given for se…
Question 6: A. 0.01 Question 7: B. - 0.4
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alg1.3 lesson 1: two - way tables cool down: oh, deer forest rangers re…
1. \(0\) 2. \(27\) 3. \(50\)
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suppose babies born after a gestation period of 32 to 35 weeks have a m…
C. The baby born in week 32 weighs relatively more since its z - score, \(0.50\), is larger than the z - score of \(0.84\) for the baby born in week 40.
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a set of data items has a mean of 65 and a standard deviation of 6 conv…
\(-3.5\)
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determine whether the statement is true or false. if the statement is f…
B. The statement is false. The correct formula is \(z - score=\frac{\text{data item}-\text{mean}}{\text{standard deviation}}\)
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read a text about bletchley park. during world war ii, the german milit…
- The codebreakers at Bletchley Park helped shorten World War II. - The British secretly used a country estate for codebreaking. - The British were committed to maintaining secrec…
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from unit 3, lesson 5 technology required. a study investigated the rel…
a. \(y = 1.04x+0.02\) b. The slope is \(1.04\). It means that for each additional person in the household, the amount of daily food waste is expected to increase by approximately …
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before world war i, france and russia had a military alliance. this mea…
A. France declared war on Germany immediately after Germany declared war on Russia.
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1 select all the values for r that indicate a positive slope for the li…
A. 1, C. 0.5, F. 0.8 ### Question 2
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read this part from the selection. the phrase \a real purpose\ means th…
C. useful
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question 3 of 10 if there is a correlation between event a and event b,…
D. Event B has something in common with Event A.
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iii. word part: bene - well, good (beneficial, benefit) benediction (be…
1. beneficiary 2. benevolent 3. benediction 4. beneficence 5. benefactor
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20. critique reasoning there are 50 communities in kalb county. each co…
Marty's estimate is reasonable.
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read the text. in my mind, people arent meant to eat—much less enjoy ea…
A. A grasshopper dish can be delicious when the insect is blended with other ingredients and is not a visible part of the dish.
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multiple choice 1 point a criminal organization is involved in illegal …
- **Question 4**: Organized Crime - **Question 5**: deviance - **Question 6**: Innovation
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read the model sentence from katherine patersons bridge to terabithia. …
Carly repeated the experiment, practically a zombie from fatigue, not believing the results from the spectrometer or even her own eyes until she was.
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consider the figures to the right. assume that one number from 1 to 7 i…
\(\frac{1}{2}\)
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a board game uses the deck of 20 cards shown to the right. two cards ar…
$\frac{3}{95}$
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question on a standardized exam, the scores are normally distributed wi…
\(1.5\)
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normal distribution - find z score score: 3/10 penalty: 1 off question …
\(0.5\)
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in the music industry, revenue from sales of cds has been declining in …
The solution of the system is \((6,537.5)\)
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sample annual salaries (in thousands of dollars) for employees at a com…
The sample mean is \(43.8\) thousand dollars and the sample standard deviation is \(6.1\) thousand dollars.
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rearrange the sentence below to remove any wordy sections. do not chang…
One effect of late - night texting is promoting harmful sleep patterns among teens.
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determine whether the following statement makes sense or does not make …
C. The statement makes sense because there may exist some outliers (maybe much greater or much less than the rest of the data) in the data items.
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select the correct answer from each drop - down menu. let ( d(t) ) be t…
\(d(4)=68\). This means that after \(4\) hours, Joanna has cycled \(68\) miles.
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not everyone pays the same price for the same model of a car. the figur…
34
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read the excerpt from act 1, scene 1, of the tragedy of julius caesar a…
Lupercal alludes to an important patriotic festival and celebrating Caesar’s triumphant return at the same indicates his high position in Rome.
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the context of a piece of writing is the environment in which it was wr…
environment in which it was written.
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read the excerpt from \a quilt of a country.\the new york of my childre…
vivid imagery
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arrange the pieces to emphasize whom/what the action was done to. do no…
The balloons were tied to the car door by Cesar Diaz.
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arrange the pieces below to emphasize who/what did the action. do not c…
I wash SpongeBob SquarePants's yellow Ferrari every Sunday morning.
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if you rolled two dice, what is the probability that you would roll a s…
5
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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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this question has two parts. first, answer part a. then, answer part b.…
Part A: B. marvelous and unique Part B: C. “...create one’s own world...”
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the chart shows a range of credit scores. a credit score between 500 an…
find it hard to get a loan.
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read the excerpt from \a quilt of a country.\ once these disparate part…
something powerful and threatening
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the line graph shown to the right shows the attendance at each champion…
1997
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a magazine provided results from a poll of 2000 adults who were asked t…
$\hat{p}=0.14$, $\hat{q}=0.86$, $n = 2000$, $E = 0.04$, $p$ is the population proportion (unknown), $\alpha=0.05$
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use the given confidence interval to find the margin of error and the s…
\(\hat{p}=0.614\)
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which concept below is not a main idea of estimating a population propo…
C. Using a sample statistic to estimate the population proportion is utilizing descriptive statistics.
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the data sets give the number of platinum albums for the five male arti…
Standard deviation (Male artists) = \(31.77\) Standard deviation (Female artists) = \(6.40\)
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use the display of data items to find the standard deviation. the stand…
\(2.32\)
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compute the mean, range, and standard deviation for the data items in e…
B. Mean and Range
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find the standard deviation for the group of data items. the standard d…
\(7.98\)
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find a. the mean, b. the deviation from the mean for each data item, an…
\(0\)
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read the excerpts from samuel johnsons preface to a dictionary of the e…
make an effort or attempt, or to try.
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much ado about nothing by william shakespeare (abridged) speaking of he…
prettiest
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a researcher at a major hospital wishes to estimate the proportion of t…
B. \(4,145\)
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in a survey of 2480 golfers, 15% said they were left - handed. the surv…
A. \((0.12,0.18)\) (assuming a typo in the option's upper - bound display. If we use the formula for confidence interval of proportion \((\hat{p}-E,\hat{p} + E)\) where \(\hat{p}=…
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a random sample of 16 men have a mean height of 67.5 inches and a stand…
A. \((1.217,3.25)\)
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football passing statistics the scatterplot and trend line show the num…
\(\frac{5}{9}\)
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read the excerpt from \a quilt of a country.\ once these disparate part…
Analyze the connotation of "fault lines" within the excerpt.
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vocabulary boost b use context to determine the meanings of the words i…
1. a. causing surprise or wonder 2. b. weighing a lot 3. a. to go under the water 4. a. to cut in strips or pieces 5. b. skillful; intelligent 6. a. to solve using math
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find the critical value ( z_{alpha / 2} ) that corresponds to the given…
\(1.70\)
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read the model sentence from george orwells 1984. he, winston smith, kn…
Mr. Mean, a perceptive cat, had figured that his owner would be beside himself about the shredded upholstery even worse than the last time.
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a random sample of students are asked about their preferences for games…
| 2 Players | 3 or More Players | |---|---| | Board Games | 50 | 16 | | Card Games | 18 | 38 |
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read this part of the story. when tara tells bryan, \pace yourself!\ wh…
C. Don't go too fast or you will become too tired.
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benfords law states that the probability that a number in a set has a g…
The quotient rule of logarithms is used. The single - logarithm form is \(P(d)=\log\frac{d + 1}{d}\). The probability that \(1\) is the leading digit is \(P(1)=\log2\approx0.3010\…
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look at the word intact in the passage below. for a thousand years, anc…
preserved or whole
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the word violation means \the act of breaking a rule or law.\ which an …
not following the school dress code
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the purpose of passwords for online sites and services may protect a us…
the act of breaking a rule or law
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9 multiple choice 5 points what does it mean to be a well - informed co…
9. C. Having knowledge about products and services before making buying decisions 10. B. To protect consumers from scams and frauds
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this two - way table shows the results of asking students if they prefe…
a. \(100\) b. \(18\) c. \(38\) d. \(55\)
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the word advent means an introduction or arrival. what likely happened …
Women became more involved in politics.
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1 multiple choice 5 points what does it mean to read product labels as …
1. C. To check ingredients, nutrition facts, and other important details 2. C. The Americans with Disabilities Act
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what is the meaning of advent as used in the passage? an introduction o…
an introduction or arrival
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the word captivate means \appeal to or fascinate.\ which of the followi…
Everybody is looking in awe at the changing colors on the horizon.
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the word ardent means \passionate.\ what might ardent sports fans do? w…
buy tickets for an entire season
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the word surpass means \exceed or outperform.\ how might an unestablish…
by selling hundreds of copies within several days
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after a football team scores a touchdown, the teams coach must decide w…
D. The coach should direct the team to attempt to kick for an extra point because the expected value of attempting a two - point conversion is less than the expected value of atte…