Statistiques
Analyse de données, distributions de probabilités et tests d'hypothèses.
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making an inference in two sample surveys, 125 people were asked about …
Yes, this inference is true. When combining the results of both surveys, oranges received 127 out of 250 total votes, which is the highest number of votes and represents a majorit…
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question 6 of 10, step 1 of 1 determine whether the statement describes…
Population
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determine if the numerical value describes a parameter or a statistic. …
Sample Statistic
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practice making inferences based on multiple samples. a survey was cond…
- About twice as many people prefer apples as prefer bananas. - Bananas are preferred much less frequently than apples or oranges. - The samples show little variation for each fru…
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determine whether the statement describes a descriptive or inferential …
Descriptive Statistic
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question 2 of 10, step 1 of 1 determine whether the statement describes…
Sample
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kevin and mark took a random sample of 100 pieces of trail mix to deter…
Mark's sample is more representative.
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determine whether the statement describes a population or a sample. the…
Sample
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students adults 8 1 16 2 24 3 identify the unit rate in \adults per stu…
$\frac{1}{8}$ (or 0.125) adults per student
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17. choose the correct answer. the british author of the renaissance pl…
17. C. Macbeth 18. D. the dangerous state of the Jews 19. - mood of the scene - time of day - different locations of the scene 20. B. Hebrew translations
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question 7 5 pts xavier practices the piano 126 minutes in 1 week. at w…
18
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simplify: $6(2.8 \\times 10^4)=\\square \\times \\square$ hide math inp…
1. $16.8 \times 10^7$ (or $1.68 \times 10^8$) 2. $2.3 \times 10^3$
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rate unit rate example: a car travels 600 miles in 10 hours. w was trav…
The unit rate (miles per gallon) is 24 miles per gallon.
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a 10\\frac{1}{2}-inch candle burns down in 6 hours. at what rate does t…
1.75
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question 4 find the sum of ((6.21 \times 10^8) + (4.86 \times 10^8)). (…
Question 4: D. $1.107 \times 10^9$ Question 5: A. $2.86 \times 10^{-13}$
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question 4 x | y 2 | 28 6 | 84 9 | 126 11 | 154 find the constant of pr…
14
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1. recall: label as qualitative or quantitative data: a. mother’s age a…
s: A. Quantitative B. Qualitative C. Qualitative D. Quantitative E. Qualitative F. Qualitative G. Quantitative
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question 2 5 pts identify the constant of proportionality based on the …
99.0 (or 99)
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making inferences two samples were taken at a shopping mall. in each sa…
C. About the same number of people prefer apples and bananas.
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question 1 identify the constant of proportionality based on the equati…
0.5
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1. multiple choice: what is the best meaning of the word on - committal…
C. uncertain
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1. spending $2,356 on 2 tvs.
The cost per TV is $1,178.
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example: a car travels 600 miles in 10 hours. write the unit rate to re…
The unit rate is 60 miles per hour.
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h the line of best fit. click to plot a point. two points plot a line. …
To determine the line of best fit for a scatter plot, we follow these general steps (though the specific implementation here is via a click - based interface): ### Step 1: Identif…
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respond with evidence use the frame and text evidence to construct a fo…
1. The figurative language of the title, "Buffalo Dusk," refers to the idea that the **buffalo (American bison)** would soon be extinct. In the same way that "dusk" means the end …
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yesterday afternoon we walked all over the town. . . . i meant last nig…
1. Union soldiers took care to keep from destroying Southern cities.: Not supported 2. As a result of the Civil War, food was scarce in the South.: Not supported 3. White Southern…
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unit rates guided notes learning target i can predict and compare real …
- For "RATE": A \(\boldsymbol{\text{ratio}}\) that compares two different quantities with \(\boldsymbol{\text{different}}\) units of measurement. - For "UNIT RATE": A \(\boldsymbo…
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describe the association in the scatter plot below. answer attempt 1 ou…
The scatter plot shows a non - linear (curved) association because as the plotted values of \( x \) increase, the values of \( y \) generally first decrease and then increase (for…
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describe what you see in the \virtual nature\ scene. what would you add…
(Example response for a typical virtual nature scene: ) In the "virtual nature" scene, I see tall, lush green trees, a meandering stream with clear water, and soft, diffused light…
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question 5 closure means that if an operation is conducted on any two e…
then the result of that operation is also within the set. --- ### Question 6
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pregunta 6 (3 puntos) the opportunity cost of buying something means th…
of the item bought. - Pregunta 7: Color is a visual marketing tool used in product positioning to stand out and attract target buyers' attention.
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writing a proportion sample 1 2 3 4 5 6 catfish 3 5 7 5 6 8 all fish 20…
$\boldsymbol{\frac{5.7}{20} = \frac{x}{200}}$ (first option)
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owen bought 17 fish sticks for $17.00. if owen spent $13.00, how many f…
13
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taubs car used 7 gallons to travel 245 miles. how many gallons of gas w…
5 gallons
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a random sample of 864 births in a state included 425 boys. construct a…
$0.459 < p < 0.525$
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sampling fish select the button to take a sample of fish. collect fish …
1:4
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it cost christopher $0.80 to send 8 text messages. how much would it co…
$\$19.90$
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express the confidence interval 0.444 < p < 0.666 in the form \\hat{p} …
\(0.555\pm0.111\)
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a data set includes 104 body temperatures of healthy adult humans havin…
\(98.533^{\circ}\text{F}<\mu< 98.867^{\circ}\text{F}\)
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identifying a representative sample lorena took a survey of the student…
No, Lorena's sample was not a random sample of the entire school. No, Lorena's sample was biased because it was taken only from an honors class.
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simplify and express your answer in scientific notation: \\(\\frac{2.64…
$3.3 \times 10^{-3}$
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the planet earth has land area of $5.761 \\times 10^8$ square miles and…
$1.4129 \times 10^8$ square miles
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order these numbers from least to greatest. 8.76, 8.767, \\(\frac{167}{…
$\frac{167}{20} < 8\frac{4}{11} < 8.76 < 8.767$
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conjugación de verbos - verb conjugations ayer - yesterday on the 1st l…
## Row 2 (Tú form) 1. Tú 2. visitaste, corriste, compraste 3. You visited, ran, bought ## Row 3 (Ellos/Ellas/Ustedes form) 1. Ellos/Ellas/Ustedes 2. cantaron, comieron, salieron 3…
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xochitl earned $94.80 at her job when she worked for 4 hours. what was …
$\$23.70$ per hour Double number line filled values (left to right, top then bottom): $\$23.70$, $\$94.80$, $1$, $4$
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match each term with its definition. simulation population biased sampl…
- simulation: an imitation of a real world process or system - population: a group of objects, individuals, or events - biased sample: a sample that is not representative of the p…
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hannah read 8 books in 4 months. if she reads at a constant rate, how m…
2
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lorne wants to determine the average amount of time that students at he…
2 students from each of the 15 classes
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mikayla designed a survey to determine the number of people expected at…
nonrandom and biased
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kari plans to sample 20 people of a population that contains 100 studen…
5 students out of each of the 4 homeroom classes
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drag each tile to the correct box. match each decimal number to its equ…
# Explanation: ## Step1: Analizar \(1.5 \times 10^{-1}\) La notación científica \(a\times10^{n}\) se convierte a decimal moviendo el punto decimal \(n\) lugares. Para \(1.5 \times…
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nathan and jordan design surveys to determine the average amount of tim…
Nathan's because his sample was more random
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skill: word meaning reread the end of the opening paragraph of part i o…
1. Part A: B. Definition 1.b Part B: D. "sun began to grow hot" 2. A. Middle English, Anglo-French, and Latin 3. D. ə-'fend-
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charles wants to find out if the students in foreign language classes s…
The way the sample was chosen may overrepresent or underrepresent students taking certain language classes.
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a group of tourists is determining the order in which to visit national…
The representative sample contained more adults than children.
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1. read each story problem. identify the unknown quantity, and write th…
Expression: \( a + 8 \); Evaluation: \( 10 + 8 = 18 \) (Ella wrote 18 stories) ### Problem 1 (Lisa's Dancing)
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to make a bakery’s signature chocolate muffins, a baker needs 2.5 ounce…
A) 7.5 ### Second Question (Horsepower and Watts)
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simplify and express in scientific notation: example 1 $(2 \\times 10^4…
\(5.02\times 10^5\) (In the form \(\underline{5.02}\times 10^{\underline{5}}\)) ### Problem 2: \((4\times 10^8)-(9\times 10^7)\)
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if 50 one - cent coins were stacked on top of each other in a column, t…
B) 100 ### Second Question (Model Car Speed)
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directions: locate the oval marked \start\. find the mean, median, or m…
The path ends at the "End" oval, following the sequence of calculations and arrows as above.
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lamont designs a survey of town residents in an attempt to predict who …
B. Lamont should sample only registered voters.
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1. read each story problem. identify the unknown quantity, and write th…
Expression: \( a + 8 \), Evaluation: 18 (Ella wrote 18 stories) ### Problem 1 (Lisa has been dancing... )
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chelsea wants to determine the number of people in her school who read …
- increase the sample size - choose students from different grade levels - choose every fourth student in all language arts classes
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which action best demonstrates the meaning of respond? a thinking silen…
C. Giving a thoughtful reply to criticism
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a newspaper publisher wants to check its daily output of about 300,000 …
The publisher can use **statistical random sampling**: 1. Select a random, representative sample of newspapers from the 300,000 daily output (ensuring every paper has an equal cha…
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supply across 5. supply curve is _____ sloping. 8. supply is relationsh…
3. curve (for Down 3)
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identifying valid, non - biased sampling methods inga, kai, and jason v…
Kai suggested the best way to produce a random sample that is not biased.
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read the excerpt from \wherefore art thou romeo?\ \minor detail,\ shond…
She wants the narrator to remember all of her lines for the play.
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analyzing sampling consider the survey descriptions shown. survey 1: a …
Survey 3 is most likely to produce a representative sample. Survey 2 is most likely to produce a biased sample. Survey 1 collects information on an entire population.
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identifying representative samples alana and ramiro are writing an arti…
Ramiro's method is likely to result in a biased sample.
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which is a distinguishing feature of claims? (1 point) ○ they are meant…
C. They are debatable or arguable.
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diego took a survey to find out how many students plan to go to a schoo…
- His sample will probably be biased. - His sample will probably be invalid.
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(in hours) (a) for these 25 students, as the time spent texting increas…
(a) decrease (b) a strong negative (c) 5 hours
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3 this question has two parts. first, answer part a. then answer part b…
D. by showing that they met several times to encode new terms ### Part B
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supongamos que la relación s se define de la siguiente manera. s = {(-9…
dominio: $\{-9, 0, 7\}$ rango: $\{-7, -6, 1, 7\}$
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corey has a part - time job at an ice skating rink selling hot cocoa. h…
# Explanation: ## Step1: Find the slope of the line We use two points on the line of best fit, say \((0, 100)\) and \((6, 96)\). The slope \(m\) is calculated as \(m=\frac{y_2 - y…
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designing an appropriate sampling method suppose you want to know wheth…
First, get a complete list of all eighth-grade music students at the school. Then, assign each student a unique number and use a random number generator to pick a subset of studen…
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evaluating survey methods maridel wants to find out how many of her cla…
Her method will produce a valid sample. Her method will produce a random sample. Her method will produce a representative sample.
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select the symbol that makes each statement true. a. 5.62 select choice…
a. \(5.62 < 5.8\) b. \(73.1 > 69.6\) c. \(-3.4 < -1.5\)
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your friend 8. model real life you have 3 karate belts. newton has 1 le…
Newton ### Question 9
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identifying bias cheryl wants to find the number of hours seventh - gra…
The sample is biased because: 1. It excludes seventh-grade boys, who are part of the target population of seventh-graders. 2. It includes girls from other grades, who are not part…
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(4.5 × 10⁶) ÷ (300) = □ 1.5 × 10⁶ 1,500 150 1.5 × 10⁻²
150
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2 the word magnitude has several meanings. match each definition o \lar…
1. Large quantity or amount → Image of a school of fish 2. Great strength or impact → Image of a hurricane 3. Large size → Image of an elephant
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passage 1 passage 2 1927 and you decide to take a nap!” mama, who rarel…
Until this morning, Anna hadn't heard of talkies either, but now she knew that they were a new kind of movie that would have actors and actresses talking.
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the table shows the relationship between the number of minutes that a h…
The relationship is multiplicative because the number of gallons can be found by multiplying the number of minutes by 8.
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when searching for the connotations of the words in \the caged bird,\ t…
the feeling or idea associated with the word.
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to determine how a city’s residents feel about building a new youth cen…
- The sample ignores the adult portion of the city's residents. - Children are probably more likely to be in favor of a new youth center. - The sample does not include children in…
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which choice describes a morpheme? (1 point) a morpheme supplies the ma…
C. A morpheme is a small unit that has its own meaning.
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the owner of a chain of 12 restaurants wants to conduct a survey to det…
1. non-random and biased 2. random and unbiased
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look at the frame from one war ends, another begins. read the excerpt f…
B. Both demonstrate that Clara encouraged others to serve.
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kareem wants to find the number of hours the average sixth - grader at …
He can randomly survey 50 sixth-graders in the school.
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bonus punctuation review: complete the light red boxes for up to 9 bonu…
To solve this punctuation review, we analyze each punctuation mark: ### Colon (:) - **Purpose**: To introduce a list, explanation, or clarification. - Example matches (introduces …
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maria wants to determine which student is favored for president of the …
- Surveying the boys in the freshman class. - Surveying all the students in her math class. - Surveying the students in the chess club.
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question 4 of 5 passage ii guitars and social media whatever happened t…
D. Yes, because the writer suggests that learning guitar can lead to more personal fulfillment than social media.
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as the din of voices in the room swelled, carleen began to belt out a s…
voices in the room swelled
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identify the mean of each distribution. distribution a mean = distribut…
Distribution A Mean = 50 Distribution B Mean = 100 Distribution C Mean = 200
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the probability that an employee of a company travels more than 10 mile…
\(\frac{1}{6}\) (corresponding to the option with \(\frac{1}{6}\))
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consider the data of categories and groups. what are the relative frequ…
Relative Frequencies of the Rows: - Category A: Group 1 \(0.5\), Group 2 \(0.5\) - Category B: Group 1 \(0.375\), Group 2 \(0.625\) - Category C: Group 1 \(0.6\), Group 2 \(0.4\)
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6. use technology to evaluate the logarithm. round your answer to three…
-1.099
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what are the relative frequencies of the rows and columns? enter the fr…
### Relative Frequencies of the Rows | | Group 1 | Group 2 | |-----------|---------|---------| | Category A| \(\frac{2}{5}\) | \(\frac{3}{5}\) | | Category B| \(\frac{19}{35}\) | …