Estadística
Análisis de datos, distribuciones de probabilidad y pruebas de hipótesis.
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jamal is a party planner who bought 8 decorations for a birthday party.…
6
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ch 15 the following are examples of statistics except x - bar. sigma. s…
1. The answer to the first question is: B. Sigma 2. The answer to the second question is: the central limit theorem.
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achebes craft: literary devices. proverbs: identify a proverb used in t…
No specific proverb is given in the text, so a general approach is to first identify a proverb from Achebe's chapters. Then, state its literal meaning (the straightforward definit…
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jamal is a party planner who bought 8 decorations for a birthday party.…
$6$
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ch 3 which one of the following is a true statement about the standard …
The standard Normal distribution is the Normal distribution N(0; 1) with mean 0 and standard deviation 1.
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unpacking the themes tradition vs. change: how do the rituals surroundi…
For "Tradition vs. Change": The rituals around Ezinma's illness are a means to uphold tradition as they are deeply - rooted cultural practices. For "Masculinity & Femininity": Oko…
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4. reread the line from paragraph 18: if youre standing in the dock, en…
A. on trial
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median {3,14,28,22,5,9} q3 q1 iqr median {8,11,32,29,9,34} q3 q1 iqr ed…
## For the set {3,14,28,22,5,9}: Median: 11.5 Q1: 6 Q3: 22 IQR: 16 ## For the set {8,11,32,29,9,34}: Median: 20 Q1: 9.5 Q3: 31 IQR: 21.5 ## For the set {2,12,52,33,8,14}: Median: …
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1. how do the details about trevor and his grandfather in paragraph 9 c…
A. They demonstrate the Noahs' family values.
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harry weeded the neighbors gardens all summer. the 8 neighbors paid: $2…
$25$
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ch 3* the length of human pregnancies from conception to birth varies a…
250 and 282 days.
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unpacking the themes tradition vs. change: how do the rituals surroundi…
The rituals surrounding Ezinma's illness show the importance of tradition as they are a means of seeking spiritual healing, are part of the community's collective beliefs and prac…
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median q3 {6,12,8,15,9,7} q1 iqr median q3 {5,9,17,25,36,45} q1 iqr
For the set $\{6,12,8,15,9,7\}$: Median: $8.5$ Q3: $12$ Q1: $7$ IQR: $5$ For the set $\{5,9,17,25,36,45\}$: Median: $21$ Q3: $36$ Q1: $9$ IQR: $27$
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mr. everett kept track of the number of hours his 10 students spent doi…
9
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gina has saved all her receipts from buying snacks at the corner store.…
$6.00$
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jon counted the number of fish kept in 8 tanks at the pet store. he cou…
3
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ch 3* the length of human pregnancies from conception to birth varies a…
First question: 234 and 298 days. Second question: the mean and the standard deviation.
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cecil rhodes wrote that he wanted to paint as much of the map of africa…
C. Britain should establish as many African colonies as possible.
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2. catan (the original) is full of symbols - settlements, robber, land …
The game may be communicating the challenges and dynamics of building and maintaining a society, including resource management, conflict, and development.
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2. catan (the original) is full of symbols - settlements, robber, land …
For the original Catan: It may communicate themes of resource - management, competition, and settlement - building. For First Nations of Catan: It likely aims to promote cultural …
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ch 3 what percentage of values of a variable following the standard nor…
C. 49.5%
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ch 3 what percentage of values of a variable following the standard nor…
2.5%
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i got one example: “i was eating crackers and cheese i saw a cat i left…
A. more sentences
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math 321 assignment 11 name: 1. if a person flips a coin and then spins…
{H1, H2, H3, H4, H5, H6, T1, T2, T3, T4, T5, T6}
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d. class 4: $mu = 80$ and $sigma = 20$ 12. find the $x$ value correspon…
93
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ch 15 suppose youre in a class of 35 students. the instructor takes a s…
the sampling distribution of X
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high school students were surveyed about which math and science topics …
| | Algebra | Geometry | Total | |--|--|--|--| | Biology | 73% | 27% | 100% | | Chemistry | 70% | 30% | 100% | | Total | - | - | - |
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question 18 1 pts ch 15 the variability of a statistic is described by …
the spread of its sampling distribution.
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question 10 10 points what does the phrase \tu quoque\ mean in latin? (…
B. you also
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question 9 what does the phrase \post hoc ergo propter hoc\ mean in lat…
B. after this, therefore because of this
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ch 15 as the sample size increases, the distribution of $\bar{x}$(sampl…
central limit theorem
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ch 15 a statistic is a number that can be computed from the sample data…
True
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ch 15* an april 2011 poll of canadian adults found that 57% were certai…
parameter.
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the manager of a juice bar polled 56 random customers to get feedback o…
The number of children who disliked the smoothie is 9. The total number of children is 27. The conditional relative frequency that a customer disliked the new smoothie, given that…
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identify any outlier(s) of the data set. 5. 8,10,13,13,14,16,27 _______…
5) $Q1 = 10$, $Q3 = 16$, $IQR = 6$, Outlier: 27 6) $Q1 = 22$, $Q3 = 33.5$, $IQR = 11.5$, Outlier: None
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here was a population, low - class and mostly foreign, hanging always o…
1. First passage: The problem is the harsh living and working conditions of a low - class, mostly foreign population facing exploitation and immorality. Second passage: The proble…
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what is the meaning of the word paragon as used in the passage? althoug…
a perfect model
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ch 15* the number of hours a battery lasts before failing varies from b…
the average failure time of a large number of batteries has a distribution that is close to Normal
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spanish soldiers who accompanied ship captains and merchants in the ame…
C. conquistadors
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what is the meaning of the word enervated as used in the passage? altho…
C. weakened
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islam means the path to submit the hadith the quran
to submit
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question 20 the image is an engraving made in 1909. this means the imag…
B. as a secondary source.
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ch 3 consider a normal model that describes student scores in a chemist…
is 1.75 standard deviations below average for the class.
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the following scatterplot shows the arm - span (in centimeters) and hei…
(a) Correlation is unit - less, so changing units does not affect it. (b) The correlation would remain 0.902. (c) The correlation would remain 0.902 as it is not affected by which…
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the following scatterplot shows the arm - span (in centimeters) and hei…
(a) It is incorrect because the correlation coefficient \(r\) is unit - less and does not depend on the units of the variables. (b) The correlation would remain \(r = 0.902\) as \…
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the table shows a companys profit based on the number of pounds of food…
$5,300$
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what is the meaning of the word dearth as used in the passage? a month …
B. lack or scarcity
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one way to compute probabilities involving random variables that are no…
True
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what is the meaning of the word recalcitrant as used in the passage? th…
obstinate or rebellious
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ch 3* the scores of adults on an iq test are approximately normal with …
2.5%
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open - ended questions: answer the following questions in complete sent…
14. Standard deviation is important in statistics because it measures the spread of data, indicating how much individual data points deviate from the mean. A small standard deviat…
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9.1 it begins with data open a spreadsheet window and enter the data so…
1. There are 10 values in the spreadsheet because there are 10 non - empty cells in column A with data values. 2. The cell that contains the number 13 is A4.
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what is the meaning of the word fallacious as used in the passage? a nu…
unreasonable or inaccurate
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janna is making a prediction of the frequency of a key that is 12 keys …
D. extrapolation, because a key that is 12 keys from middle C is outside the data - set
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for a sample with a standard deviation of $s = 15$, describe the locati…
a. 18 points below the mean b. 12 points above the mean c. 30 points above the mean
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the data in the table compares x, the number of pages in a chapter, to …
C. 19
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standard deviation calculation questions show your work for each questi…
Mean: $7.7$, Standard Deviation: $1.38$ ### Question 12
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a population characteristic is normally distributed. approximately what…
B. 68%
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select the correct answer. what does the word incensed mean in the foll…
C. enraged
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10. standard deviation is most useful for comparing: a) the size of dat…
B. The spread of different data sets
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ch 3* the proportion of observations from a standard normal distributio…
A. 0.1056
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multiple choice questions: choose the correct answer from the choices f…
6. B) All values are the same 7. C) Multiply all data points together 8. B) The scores are spread out 9. B) Find the mean of the data set
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f(x)=sqrt{x}-2. find the inverse of f(x) and its domain. a. f^{-1}(x)=(…
Assuming the options are meant to be: A. \(f^{-1}(x)=(x - 2)^2,x\geq2\) B. \(f^{-1}(x)=(x - 2)^2,x\geq0\) C. \(f^{-1}(x)=x^2-2,x\geq0\) D. \(f^{-1}(x)=x^2 - 2,x\geq2\) None of the…
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what is the meaning of the word nefarious as used in the passage? grimm…
vile or wicked
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ch 3* the scores of adults on an iq test are approximately normal with …
About 98%
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the marketplace operates within a framework of rules about production a…
B. Economic System
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what contributed to the american victory at midway? admiral nimitz knew…
Admiral Nimitz knew that the Japanese were going to attack Midway Island.
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what is the meaning of the word eschewed as used in the passage? the ea…
kept away from
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which line fits the data graphed below? choose 1 answer: a a b b c c d …
C. C
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what is the meaning of the word pernicious as used in the passage? alth…
A. destructive
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what is the meaning of the word vacuous as used in the passage? paula w…
mindless
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question 4 the standard normal random variable z is equal to
The standard normal random variable \(Z\) is equal to \(\frac{x-\mu}{\sigma}\) (assuming \(x\) is a value from the non - standard normal distribution with mean \(\mu\) and standar…
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understanding standard deviation: a 12th - grade worksheet standard dev…
1. deviation 2. close 3. average 4. spread 5. positive
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question 3 ch 3 a normal distribution: (check all that apply.) has an a…
has an area of exactly 1 underneath the density curve. is symmetric. can be completely specified by a mean and a standard deviation.
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what is the meaning of the word diaphanous as used in the passage? as a…
thin and translucent
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a basket contains five apples and seven peaches. nikkiem selects an app…
Dennis is less likely
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the meaning of sentence 5 can be improved by changing \his\ to- * 1 poi…
1. C. his or her 2. A. it
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pitcher 1 - baseball speeds in miles per hour. 55 60 65 70 75 80 85 90 …
Pitcher 1, because he has the lesser amount of variability in his pitches.
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how should became be written in sentence 3? * 1 point a: will become b:…
1. D. As it is 2. A. he or she
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the meaning of sentence 1 can be improved by changing \their\ to- * 1 p…
1. theirs 2. D. As it is
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read the passage below from the giver by lois lowry. jonas, a 12 year o…
Isolation
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on a patch of desert - clay in california, there are rocks that mysteri…
C. present an explanation for a puzzling phenomenon
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the two box plots show the data of the pitches thrown by two pitchers t…
Pitcher 1 does not have a symmetric data set. Pitcher 2 has a symmetric data set. Pitcher 2 has the greater variation.
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why might an author or speaker use the term \waste\ instead of \spend\ …
D. The term changes the tone of the message.
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select all the correct answers. read this passage taken from \how the s…
- hardships of the Hopi peoples - cultural differences between the Hopi peoples and the Spaniards
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part a: critical thinking questions / preguntas de pensamiento crítico …
1. El "Intercambio Colombino" es la transferencia de seres vivos, enfermedades y culturas entre Europa y las Américas después de 1492 y fue crucial para el cambio en los ecosistem…
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a score of x = 75 is measured in a population with a mean of μ = 100. a…
The raw score $X = 75$ is less than the mean $\mu = 100$. By the z - score formula, when $X<\mu$, $z=\frac{X - \mu}{\sigma}<0$. So a positive z - score of $z = + 1.50$ is incorrec…
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the kingdom of ghana quick check which of the following statements best…
The Almoravid invasion weakened Ghana, leading to its eventual collapse centuries later.
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the average height of students in courtneys class is 5.5 feet, with a s…
None of the provided options (A. 1.5, B. 2.5, C. 1.8, D. 2.1) are correct. The correct z - score is 2.
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the speaker in those lines from langston hughess poem \i, too\ states t…
C. Even though he is being rejected by those at the table, the speaker is confident and resilient to adversity.
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on a jogging trail, you take a random sample of the speed of 50 joggers…
C. You conclude that the average speed of all joggers on this trail is close to 5.3 mph
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a study conducted an experiment with 22,000 women over 10 years to inve…
B. The 22,000 women in the study
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what is the meaning of the word propitious as used in the passage? the …
advantageous or promising
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read the passage. then, select the synonym of the word in bold. the old…
Favorable
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what is the meaning of the word derided as used in the passage? one of …
A. ridiculed
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in the united states, the mean average height of adult women is approxi…
None of the provided options (A. 10%, B. 68%, C. 48%, D. 16%) are correct. There may be an error in the question or options as the calculated probability of women with heights bet…
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esteban measured the lengths of a species of bird in a region. the grap…
C. 34%
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jefferson middle school recycled cans west side middle school recycled …
What is the interquartile range of Jefferson Middle School cans recycled? 4 What is the interquartile range of West Side Middle School cans recycled? 3 Which school had a greater …
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jefferson middle school recycled cans west side middle school recycled …
What is the interquartile range of Jefferson Middle School cans recycled? 4 What is the interquartile range of West Side Middle School cans recycled? 4 Which school had a greater …
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west side middle school and jefferson middle school recycled newspaper …
West Side Middle School