Statistiques
Analyse de données, distributions de probabilités et tests d'hypothèses.
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8. a school district surveyed students about whether they prefer math o…
D. Math: Middle school 60, High school 120; English: Middle school 40, High school 80; Total: Math 180, English 120, Total 300
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what does it mean when a part of the population is under - represented?…
D. A part of the population is under - represented when it is proportionally smaller in a sample than in its population.
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a(n) is obtained by dividing the population into homogeneous groups and…
E. stratified sample
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in october of 2011, world population reached seven billion people. ever…
People who study human populations, their size, structure, distribution and changes.
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question 23 jamal scored 50% higher on the sat than joshua did. this me…
Joshua's score was two - thirds of Jamal's.
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suppose the size of a population is n = 3500 and the sample size desire…
388
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a professor wants to randomly select 4 students to go to the board. she…
5,13,21,29
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determine whether the following statement is true or false. explain. wh…
C. False. Within stratified samples, the number of individuals sampled from each stratum should be proportional to the size of the stratum in the population.
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directions: read and annotate each source for bias, reliability, and po…
Justin: Sesgado (involucrado), afirma que Max lo empujó; baja confiabilidad (interés personal); punto de vista: víctima. Max: Sesgado (involucrado), afirma que Justin lo golpeó si…
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use the histogram below to approximate the mode heart rate of adults in…
D. 70
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use the histogram below to approximate the mean heart rate of adults in…
B. 70.8
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for the given data, construct a frequency distribution and frequency hi…
C. skewed right
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use the ogive to the right to approximate the sample size. leisure time…
D. 80
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what is an advantage of using a stem - and - leaf plot instead of a his…
What is an advantage of using a stem - and - leaf plot instead of a histogram? B. Stem - and - leaf plots contain original data values where histograms do not. What is a disadvant…
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the top 14 speeds, in miles per hour, for professional drag racing over…
C. 196.1
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for the given data, construct a frequency distribution and frequency hi…
C. symmetric
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approximate the mean of the grouped data. round to the nearest whole nu…
E. 19
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domain & range quiz 1. imagine a coffee shop that offers catering. they…
1. - a. $C(n)=6n + 20$ - b. Domain: $\{n\in\mathbb{Z}:n\geq0\}$, Range: $\{C(n)\in\mathbb{Z}:C(n)\geq20\}$ 2. - a. $C(9)=97$. It means the total cost of printing 9 shirts is $97$ …
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construct a frequency distribution and a relative frequency histogram f…
Class 5 - 6 has the greatest relative frequency. Class 7 - 8 has the least relative frequency.
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what change, if any, is necessary in the underlined portion in the foll…
No change is necessary.
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how do you see it? the scatter - plot shows the attendance for each mem…
Greater than 20: The attendance at the second meeting is only 1 above 20 and the attendance at the other two is more than one below 20. The attendance at the fourth meeting must b…
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sort mmmr. drag and drop the correct mean, median, mode, and range for …
Data Set 1: Mean: 91.5 Median: 91.5 Mode: 92 Range: 10 Data Set 2: Mean: 67.6 (closest value in options is 67.2) Median: 67 Mode: 67 Range: 16 (closest value in options is 12)
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2. where does this story take place? * codys bus codys house codys back…
2. No answer as story is not provided. 3. Cody 4. searched
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note: please make sure to properly format your answers. all dollar figu…
52
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a number cube is rolled three times. an outcome is represented by a str…
Event A: Check OOO, OOE; Probability: $\frac{1}{4}$ Event B: Check OOE, EEE, EEO, OEE; Probability: $\frac{1}{2}$ Event C: Check OOO, OOE, OEO, EOO, EOE; Probability: $\frac{5}{8}$
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the graph shows the distribution of hand lengths, in centimeters, of th…
4
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georgianna wants to use the linear model associated with the data in th…
0 to 30 minutes
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identify the reasoning process, induction or deduction. explain your an…
D. This is an example of inductive reasoning because a general conclusion is reached based on a specific example.
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a math tutor working with a small study group has classified students i…
D. {Cam, Ny, Flo, Roz, Don, Gus}
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the venn diagram on the right shows the results of a gfk roper public a…
C. The statement is false because 93% of those surveyed liked cats or dogs.
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1. history what does the text mean when it says that pilate washed his …
Pilate washing his hands was a symbolic act of washing - away responsibility, and "performed thy pleasure" meant giving in to the demands for Jesus' execution.
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in a popular online role playing game, players can create detailed desi…
$\frac{165}{167}$
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motivate has the same or almost the same meaning as: propel obliterate …
A. propel
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what reason does the video provide for why americans have increasingly …
1. They are choosing to carry less cash. 2. continuous 3. discrete 4. Possible random variables: Number of credit - cards in the wallet (discrete); Total value of items in the wal…
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as he got closer, i realized he couldnt be holding a blanket over his h…
Large - sized and taking up much space.
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14 identify the range for the data set. {3, 9, 15, 16} {6, 18, 30, 32} …
\(26\)
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identify the range for the data set. input: 16, 15, 9, 3 output: 32, 30…
13
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choose the correct answer. which term means \study of\? -ology path/o -…
A. -ology
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entreat has the same or almost the same meaning as: endow beseech licen…
B. beseech
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fissure means : a hexahedron with six equal squares as faces inherited …
C. a long narrow depression in a surface
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pre - module quiz 1 engl - 043 - cr: ninth - grade english, part 2 / un…
4. D. the dangers of unchecked power 5. A. think about what you read while you are reading
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psychological means : of or relating to the science of mental life of o…
of or relating to the science of mental life
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tumultuous has the same or almost the same meaning as: glorious riotous…
B. riotous
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dissolution means : the termination or disintegration of a relationship…
the termination or disintegration of a relationship
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whats the main difference between \otro\ and \otra\? there is absolutel…
B. "Otro" is masculine and "otra" is feminine. They change depending on the gender of the noun.
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annihilate means to: do away with completely, without leaving a trace p…
A. do away with completely, without leaving a trace
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beguiling has the same or almost the same meaning as: flagrant dogmatic…
D. seductive
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dimension means : magnitude or extent recurring at regular intervals co…
A. magnitude or extent
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manipulate has the same or almost the same meaning as: core quarry quen…
D. rig
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in a flash of lightning, through the mud - spattered rear windshield, i…
The skin seems to be moving or creeping, as a physical - like sensation due to revulsion, fear or discomfort.
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visualization means : any agreeable sounds a mental image that is simil…
a mental image that is similar to optical perception
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which best describes the strength of a model with an r - value of 0.29?…
a weak positive correlation
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21. what does additive inverse mean? choose all that are correct. a) a …
21. c) The number needed to make zero when you add, d) The opposite of a number 22. d) Its negative value
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the table shows the time a patient spends at the dentist and the amount…
D. \(0.93\)
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which r - value represents the weakest correlation? -0.75 -0.27 0.11 0.…
0.11
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the table shows the shipping costs for items of different values. which…
a weak positive correlation
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what is the correlation coefficient for the data shown in the table? o …
B. -1
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which r - value represents the most moderate correlation? -0.92 -0.18 0…
0.56
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which relationships would most likely be causal? select two options. a …
- a positive correlation between the number of homework assignments completed and the grade on the exam - a positive correlation between the temperature in a canyon in the early s…
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check your understanding 1. kasey noticed that the distribution of cand…
| |Twix|Milky Ways|Snickers| |--|--|--|--| |Small|24|8|19| |Medium|30|10|25| |Large|42|14|37| ### 2.
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home college board - sat... 23, 8, 25, 20, 16, 28, 7, 5, 25, 0, 20, 22,…
| Interval | Frequency | |--|--| | 0 - 4 | 2 | | 5 - 9 | 6 | | 10 - 14 | 2 | | 15 - 19 | 2 | | 20 - 24 | 7 | | 25 - 29 | 5 |
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4. you want to rent an unfurnished one - bedroom apartment in boston ne…
Parameter
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3. we have iq test scores of 31 seventh - grade girls in a midwest scho…
98, 113
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2. the new york times and cbs news conducted a nationwide poll of 1048 …
The confidence interval would have the same center but be wider
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modeling payroll - related problems using linear functions taylor runs …
$y = 2.00x + 1000$ (corresponds to the second option in the image assuming the $1,00$ is meant to be $1000$)
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question 1 of 6 1. you want to rent an unfurnished one - bedroom apartm…
The confidence interval would have the same center but be narrower
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home college board - sat... 48, 56, 41, 43, 18, 12, 44, 23, 14, 7, 5, 5…
| Interval | Frequency | |--|--| | \(0 - 9\) | \(2\) | | \(10 - 19\) | \(4\) | | \(20 - 29\) | \(5\) | | \(30 - 39\) | \(4\) | | \(40 - 49\) | \(8\) | | \(50 - 59\) | \(4\) |
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question 1 of 6 1. you want to rent an unfurnished one - bedroom apartm…
The confidence interval would have the same center but be narrower
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8. scores on the science section of the sat are normally distributed wi…
above 400: c. 50% above 450: e. 16% between 400 and 500: d. 47.5% below 450: b. 84%
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which of the following terms means \to believe in one god\? bitheism at…
monotheism
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6. nonparticipant, distracter, complainer, and absentee are all example…
6. B. agitator 7. A. interactive
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7. the ages of 22 students in a karate class are given below. 11, 5, 9,…
How many students are at least 10 years old? b. 11 What percentage of the students are 8 years old and younger? c. 36
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6. height is normally distributed with a mean of 64 inches and a standa…
below 64: b. 50% below 55: a. 0.15% above 67: e. 16% below 67: c. 84% above 55: d. 99.85%
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strategies for determining unifor each passage. 1. “then, with an angry…
C. golden form
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5. the heights of 20 basketball players, in inches, are given below. 68…
How many players are 75 inches and less? e. 11 How many players are greater than 70 inches tall? d. 16 What percentage of the players 75 inches and taller? (No correct option give…
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4. scores on the math section of the sat are normally distributed with …
400 and 700: c. 81.5% 400 and 600: d. 68% 500 and 700: e. 47.5% 300 and 700: b. 95% 400 and 500: a. 34%
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i. adding prefixes directions: change each word below to its opposite m…
| Original Word | New Word | |--|--| | Violent | Non - violent | | Replaceable | Irreplaceable | | Toxic | Non - toxic | | Fat | Non - fat | | Human | Non - human | | Fiction | No…
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3. the resting pulse rates were recorded for 16 boys in gym class befor…
How many boys had a pulse rate of at most 82? b. 9 What is the range of the pulse rates? f. 79 to 85 How many boys had a pulse rate of 83? j. 4 How many boys had a pulse rate over…
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question a study was commissioned to find the mean weight of the reside…
$(153,169)$
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a survey was given to a random sample of voters in the united states to…
$4\%$
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question for the following set of data, find the number of data within …
5
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question for the following set of data, find the percentage of data wit…
$71.4\%$
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for the following set of data, find the number of data within 2 populat…
54
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in many ways, though, okapis are quite different from their giraffe cou…
by oneself
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the new mexico division of fish and wildlife keeps track of the silvery…
279
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for the following set of data, find the number of data within 1 populat…
44
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read the two passages. passage 1 the need for standardized testing in e…
Passage 1 uses anecdotal evidence, while Passage 2 uses empirical evidence.
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for the following set of data, find the percentage of data within 1 pop…
$66.7\%$
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1. height is normally distributed with a mean of 67 inches and a standa…
1. 63 in. and 71 in. - f. 68% 2. 67 in. and 75 in. - c. 47.5% 3. 55 in. and 79 in. - e. 99.7% 4. 59 in. and 75 in. - b. 95% 5. 55 in. and 67 in. - d. 49.85% 6. 63 in. and 79 in. -…
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question for the following set of data, find the population standard de…
$39.30$
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for the following set of data, find the sample standard deviation, to t…
$4.25$
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read the excerpt from the crab that played with the sea. he went north,…
the repetition of words and patterns the use of animals to tell a magical story
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question for the following set of data, find the sample standard deviat…
$25.19$
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researchers at tel aviv university in israel wanted to learn more about…
uncover the meaning of
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question 8 (1 point) listen why does sedaris include nonsense words in …
Question 8: 3) Because he doesn't not understand his teacher. It sounds like gibberish. Question 9: 2) Information about where is is in France, the name of school he is going to, …
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9) write a question that could be asked that would lead to gathering th…
Is there a relationship between the number of hours a student studies per week and their test scores?
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(b) make another stemplot of the data by splitting stems.
The filled stemplot is: 0 | 5 6 7 7 8 8 9 1 | 0 0 0 1 2 3 4 2 | 5 5 6 6 8 8 8 8 3 | 5 6 9 9 4 | 5 5 7 9
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question 3 (1 point) where does the title \me talk pretty\ come from in…
Question 3: 2) David Sedaris overhears a conversation where a student tells another that they will one day "talk pretty." Question 4: 2) speak the language.
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4) which is an example of a non - random (convenience) sample? explain …
a) You ask the first 20 people who walk into Target what their favorite store is.
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question for the following set of data, find the sample standard deviat…
$64.00$