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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a safe has a 4 - digit lock code that does not include zero as a digit …
The probability of a lock code without all even digits is \(\frac{3000}{3024}\), and there are 24 ways to get a lock code with all even digits and 3000 ways to get a lock code wit…
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what does the policy of laissez faire mean? a. more government involvem…
B. Less government involvement in the economy
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using permutations in calculating theoretical probability a safe has a …
To find the total number of outcomes for this event, find the permutation of 9 things taken 4 at a time. The total number of outcomes is 3024. The total number of favorable outcom…
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a survey was conducted to study the proportion of households in a commu…
a. $E(\hat{p}) = 0.34$ b. $\sigma_{\hat{p}}\approx0.0474$ c. The sampling distribution of $\hat{p}$ is approximately normal with mean $\mu_{\hat{p}} = 0.34$ and standard deviation…
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suppose the population proportion is 0.38. a. compute the standard erro…
| Sample Size $n$ | Standard Error | |---|---| | 100 | 0.04854 | | 200 | 0.03432 | | 400 | 0.02427 | | 800 | 0.01716 | b. D. The standard error decreases as the sample size increa…
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a hang glider is soaring over a 100 - acre area that consists of thick …
0.8
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suppose a population proportion is 0.7 and a sample of size of 400 will…
a. 0.6156 b. 0.9198
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which one of the following is a problem - solving strategy that involve…
B. Means - end analysis
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what does yo sé mean in english? i know i see i listen
I know
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what does pelo mean in english? hair eyes head face
Hair (Note: There is no "Hair" option exactly in the provided choices, but based on the meaning of "pelo", it should be hair. Among the given options, perhaps there is a mis - typ…
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a retail manager is analyzing the percentage of customers who make a pu…
a. \(E(\hat{p}) = 0.32\), \(\sigma_{\hat{p}}\approx0.0436\) b. \(0.9780\) c. \(0.7498\)
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what was the purpose of fdrs \fireside chats\? o a. they were talks to …
c. They were talks to the American people detailing different New Deal programs.
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ten identical slips of paper each contain one number from one to ten, i…
$P(6) = P(1)$, $P(>10)=0$, $S = \{1,2,3,4,5,6,7,8,9,10\}$, If $A\subset S$; A could be $\{1,3,5,7,9\}$
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construct a box plot to represent the ages of the actors in a play. ste…
18, 24, 24, 25, 26, 28, 30, 32, 33, 44
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in 2000, the median home price in a certain city was about $310,000, an…
far less than
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question 7, 9.c.47 part 1 of 2 in 2000, the median home price in a cert…
$2.20$
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answer the following questions to identify important concepts about fdr…
c. They were talks to the American people detailing different New Deal programs.
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the process of selecting a small group from a larger population to stud…
# Breve explicación: La muestra es el proceso de seleccionar un sub - grupo de una población más grande para estudiar y hacer inferencias sobre la población total. Un censo abarca…
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without a specific pattern or order; each one an equal chance of being …
# Breve explicación: El término "random" se refiere a un proceso sin un patrón o orden específico, donde cada elemento tiene la misma probabilidad de ser elegido. Un censo es un r…
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test the hypothesis of independence. can you conclude that opinion and …
(a) $H_0$: Household size and opinion are independent; $H_1$: Household size and opinion are not independent. (b) Cannot be computed without contingency - table data.
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goal: describe yourself and others. 1 ¿cómo eres? match the adjective i…
seria - cómica bajo - alto malo - bueno trabajadora - perezosa grande - pequeño
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what is the topic sentence of this paragraph? 1. statistics demonstrate…
Sentence 1.
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after distribution, what is my next step to solving an equation? □ comb…
Combine like terms
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5 a sentence that requires the use of imagination to create an image or…
D. Figurative
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2 which of the following is a characteristic of figurative language? do…
Allows for use of imagination to develop meaning
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1 figurative language has which of the following characteristics? is no…
A. Is not factual
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summarizing informational text quick check what does it mean for an aut…
It means each idea connects and adds meaning to the author’s point.
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1 figurative language has which of the following characteristics? is no…
Is not factual
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7- what was the expression we use to describe hammurabis code and what …
7. The expression is "an eye for an eye, a tooth for a tooth". It was for justice and order. 8. Divine kingship. 9. Code of Ur - Nammu and Hammurabi's Code. 10. Ancient Egypt. 11.…
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eyeglassomatic manufactures eyeglasses for different retailers. they te…
a) 1; bar - graph b) | Defect Type | Frequency | Relative Frequency | |--|--|--| | Scratched | 4 | 0.2 | | WrongShapeSize | 9 | 0.45 | | SpotsBubbles | 4 | 0.2 | | Other | 3 | 0.1…
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what is the medium of an artist work? a. the way something is communica…
A. The way something is communicated, or the material something is created from
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a survey asked how many children people have. the survey results are gi…
\(\frac{2}{7}\)
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what do audiences of lucilio de albuquerques pygmalion and galatea need…
A. Knowledge of the artist's family and background B. Knowledge of the other paintings by the artist C. Knowledge of the medium the artist is using D. Knowledge of the original my…
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a frisbee - golf club recorded the ages of its members and used the res…
Total number of members: 21 Number of members 25 years of age or younger: 10 Percent of total members that are 25 years of age or younger: 47.62
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students on a campus of a college in california were asked \what will m…
(a) $0.1763$ (b) $0.1676$
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the dot plot shows the number of text messages mr. garcia sent each day…
The graph is nearly symmetrical.
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the graph shows the ages of different concert - goers who have backstag…
B. The two holders of back - stage passes whose ages are above 40 make the mean age higher than the median age.
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ms. redmon gave her theater students an assignment to memorize a dramat…
The mean will decrease.
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the following frequency table contains the total number of deaths world…
$41.6$
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ms. monroe mixes 200 cubes of 4 different colors for a project. she the…
The mean number of red cubes is more than the median number of red cubes.
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the following frequency table contains the total number of deaths world…
97118
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the graph shows the number of minutes, to the nearest five minutes, tha…
The mean will decrease, and the median will stay the same.
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click here for the data so jr fr sr sr jr jr fr fr sr fr jr jr sr sr fr…
| Class rank | Frequency | Relative frequency | |--|--|--| | Freshmen | 5 | 0.25 | | Sophomores | 2 | 0.10 | | Juniors | 6 | 0.30 | | Seniors | 7 | 0.35 |
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a mini - golf course is determining the par score for each of its holes…
The mean is the best choice because the data is nearly symmetrical.
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brooke has scores of 84, 72, 90, 95, and 87 on her first five quizzes. …
B. 90 D. 86 E. 92
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a may 2011 gallup poll found that many americans believe in ghosts and …
| Phenomenon | Frequency | Relative Frequency | |--|--|--| | Psychic Healing | 222 | 0.16 | | ESP | 152 | 0.11 | | Ghosts | 277 | 0.20 | | Astrology | 152 | 0.11 | | Channeling | …
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the table shows the heights, in inches, of players on a girls’ basketba…
C. 69
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tristan records the number of customers who visit the store each hour o…
C. 20
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2.1: categorical data tables and graphs. to find the missing frequency,…
| Number of Courses | Frequency | Relative Frequency | | ---- | ---- | ---- | | 1 | 20 | 0.3 | | 2 | 18 | 0.3 | | 3 | 27 | 0.4 |
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the graph shows the number of pages in each chapter of a book that josh…
The outlier of 2 decreases the mean page count.
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2.1: categorical data tables and graphs. to find the missing frequency,…
| Number of Courses | Frequency | Relative Frequency | | ---- | ---- | ---- | | 1 | 17 | 0.3 | | 2 | 19 | 0.3 | | 3 | 29 | 0.4 |
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the data show the number of pieces of mail delivered to a single home a…
A dot plot would show 7 points for numbers greater than 2. The intervals on a histogram should be 0 to 2, 3 to 4, and 5 to 6.
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read the quote by jane addams. \the settlement then, is an experimental…
C. Hull House
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2.1: categorical data tables and graphs. to find the missing frequency,…
| Number of Courses | Frequency | Relative Frequency | | ---- | ---- | ---- | | 1 | 11 | 0.2 | | 2 | 18 | 0.4 | | 3 | 16 | 0.4 |
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there are 8 sophomores on the academic team. at the last competition, t…
79%
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mr. li records the measures of the lengths of his students hand - print…
7
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quinn mailed four postcards that each cost $0.25, five letters that eac…
D. the cost of the small package
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violet creates two spinners for a game. each spinner is spun once, and …
C. The mean is the same as the median.
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the dot plot represents the amount of rain recorded by rain gauges in d…
16
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a no parking sign at a certain location means you may never stop your v…
You may stop temporarily to load or unload passengers.
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the dot - plot shows the number of words students spelled correctly on …
The graph is nearly symmetrical.
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a survey of retirees was conducted to determine their opinion on the th…
1. all retirees 2. 2465 3. 417 4. 83.09 5. nonresponse bias and sampling bias
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a steady yellow light at an intersection means: go yield to other cars …
Slow down and prepare to stop
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garth is packing boxes with books. the list shows how many books are in…
The mean number of books to a box is 11.
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section 1.3: you may see the same question twice, because the scenarios…
1. Designed experiment 2. Observational study
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read these sentences from the article. and try as people might, emojis …
C. Some aspect of meaning is not fully captured by emojis.
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a student says that 1.2 × 10⁴ is larger than 9.8 × 10⁵. do you agree or…
Disagree. \(1.2\times 10^{4}=12000\) and \(9.8\times 10^{5}=980000\), so \(1.2\times 10^{4}\) is smaller than \(9.8\times 10^{5}\).
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in a gallup poll of 1187 randomly selected american adults, 54% had a f…
1. C. all American adults 2. A. the 1187 randomly selected American adults 3. D. random 4. A. The sample is fairly large and random and is likely to be representative of the popul…
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match each of the following to the type of sampling technique used: - t…
1. e. cluster sample 2. d. convenience sample 3. b. stratified sample 4. a. simple random sample 5. c. systematic sample
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multiplyin to distribution method 1) -5y²(-3y³ + 8)
$15y^{5}-40y^{2}$
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sampling methods (it is possible to get the same question twice.) in a …
D. Cluster
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what did the slogan o taxation without representation\ mean to american…
Colonists believed they should be represented on Parliament if they were going to be taxed
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select the correct sampling technique that was used. every 100th hambur…
B. systematic
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sampling methods (it is possible to get the same question twice.) in a …
Stratified
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sampling methods (it is possible to get the same question twice.) in a …
Simple Random
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select the correct sampling technique that was used. the population of …
stratified
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sampling methods (it is possible to get the same question twice.) in a …
B. Systematic
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____ is not one of the components of well - being. engagement relations…
Question 1: E. Productivity Question 2: A. mindfulness
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determine whether the variable given is qualitative, quantitative - dis…
qualitative since this variable would yield categories
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determine whether the variable given is qualitative, quantitative - dis…
qualitative since this variable would yield categories
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determine whether the variable given is qualitative, quantitative - dis…
qualitative since this variable would yield categories
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determine whether each observation below is discrete or continuous. a. …
a. Discrete b. Discrete c. Discrete d. Continuous
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print-o-matic would like to estimate their mean salary of all employees…
- all Print - O - Matic employees: c. population - a Print - O - Matic employee: b. individual - salary: f. variable - 19 Print - O - Matic employees: a. sample - mean salary for …
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to estimate the percentage of incoming freshman who place into college …
- percentage of the 150 incoming college freshmen who placed college - level in mathematics: a. statistic - an incoming college freshman: b. individual - 150 incoming college fres…
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which of the following best describes the meaning of \unalienable right…
Rights that every person is born with and cannot be taken away
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florida wants to estimate the mean mercury level in the fish from a par…
- the mean mercury level for 56 fish from the lake: b. statistic - fish from the lake: f. individual - mercury level: a. variable - all fish from the lake: d. population - the mea…
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determine what the key terms refer to in the following survey. to deter…
Population: d. All students in Oxnard College Parameter: a. The average number of classes of all students in Oxnard College is 2.5 Sample: b. The 31 Oxnard College students who we…
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qualitative (categorical) or quantitative? if you end up getting the sa…
Neck Size, Length, Weight
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determine whether each observation below is a statistic or a parameter.…
a. Statistic b. Parameter c. Parameter d. Statistic
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the city of frederick has 9288 registered voters. there are two candida…
Population size: 9288 Sample size: 450
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definitions of parameters, statistics, etc. a political scientist surve…
What is the size of the sample: 37 What is the size of the population: 155
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definitions of parameters, statistics, etc. to find the average amount …
population: b. college students sample: d. the 300 students you surveyed
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this data represents the responses of 200 community college students. t…
First question: A. 0.39 Second question: C. 0.97
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state whether the following scatter plot has: 1 - positive correlation …
Negative correlation
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a student does a survey to see if the proportions of men and women who …
1. 2 Proportions z - test 2. $H_0: p_1 = p_2$, $H_A: p_1 eq p_2$
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you wish to test the following claim ($h_a$) at a significance level of…
test statistic = - 0.762 p - value = 0.223 The p - value is greater than $\alpha$ This test statistic leads to a decision to fail to reject the null As such, the final conclusion …
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prototypes are designed to determine a product’s feasibility. in this c…
an ability to be built.
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identify the histogram for the frequency distribution below. bin freque…
The first histogram (top - left) is the correct one as it has bar - heights of 1, 2, 5, 4, 1 for the bins [2, 7), [7, 12), [12, 17), [17, 22), [22, 27) respectively.
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if n = 17, $\bar{x}$(x - bar)=35, and s = 4, construct a confidence int…
$32.2<\mu<37.8$
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considering aesthetics means thinking about what aspect of the product?…
C. visual appeal