Statistik
Datenanalyse, Wahrscheinlichkeitsverteilungen und Hypothesentests.
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mariah is randomly choosing three books to read from the following: 5 m…
There are \(_{20}C_{3}\) possible ways to choose three books to read. - True There are \(_{5}C_{3}\) possible ways to choose three mysteries to read. - True There are \(_{15}C_{3}…
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a random sample of 1,000 adults complete a survey about nightly sleepin…
E. Because random sampling was used in the absence of using random assignment, the results can be generalized to the population of adults, but we cannot infer that stress level is…
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a cbs news poll involved a nationwide random sample of 651 adults, aske…
a. $0.286$ b. $0.460$ c. $0.237$ d. $0.147$ e. $0.068$
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section 5.4 homework score: 1/14 answered: 1/14 question 2 use the foll…
$0.1408$
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section 5.4 homework score: 0/14 answered: 0/14 question 1 what is equa…
D. $\frac{P(A\ and\ B)}{P(B)}$
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edgar has a bag of marbles with 5 blue marbles, 2 white marbles, and 2 …
$0.171$
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what does separation of church and state mean? churches cannot make law…
The government cannot make laws based on religion.
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edgar has a bag of marbles with 5 blue marbles, 2 white marbles, and 2 …
a) $0.123$ b) $0.049$ c) $0.172$
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question 2 1 pts a total of 480 students participate in an experiment i…
6
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section 5.3 homework score: 10/13 answered: 10/13 question 11 a couple …
a) $\frac{1}{8}$ b) $\frac{7}{8}$
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least - squares ok? the following is a residual plot. was it appropriat…
Yes, it was appropriate to compute the least - squares regression line because the residual plot does not exhibit a noticeable pattern.
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least - squares ok? following is a residual plot. was it appropriate to…
Yes, was not
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section 5.3 homework score: 8/13 answered: 8/13 question 9 you toss a f…
a) 0.0625 b) 0.9375
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4.3 homework question 6 of 9 (1 point) | question attempt: 1 of unlimit…
Yes, is appropriate to compute the least - squares regression line because the residual plot does not show a noticeable pattern.
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section 5.3 homework score: 6/13 answered: 6/13 question 7 a die is rol…
0.0833
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the following is a residual plot. was it appropriate to compute the lea…
No, was not, has
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section 5.3 homework score: 5/13 answered: 5/13 question 6 a quick quiz…
2.78
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section 5.3 homework score: 4/13 answered: 4/13 question 5 suppose that…
$0.0225$
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section 5.3 homework score: 2/13 answered: 2/13 question 3 a coin will …
(a) A. Yes (b) $\frac{1}{4}$
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section 5.3 homework score: 1/13 answered: 1/13 question 2 a and b are …
$0.3973$
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four swimmers, daniela, camille, brennan, and amy, compete on a relay t…
The correct option is not among the given ones. But if we assume there is a mis - typing and we consider the logic of complement, the set of elements in the sample space that are …
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section 5.3 homework score: 0/13 answered: 0/13 question 1 events a and…
$0.36$
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what does repertory mean? the company is professional and approved by t…
- Question 3: The plays offered rotate either daily or weekly - Question 4: Magical elements such as nymphs and an Amazon queen - Question 5: 12 - 20
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use the appropriate formulas and methods to answer the following questi…
Mode = 67.5 Median = 63.5 Mean = 60.56
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paige rolls a number cube sixty - four times. the number 4 comes up fou…
31
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question 10 of 10 which data set has the smallest standard deviation? a…
D. 22, 22, 23, 23, 22, 22, 23
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question 8 of 10 how do you find the range of a data set? a. subtract t…
A. Subtract the smallest value from the largest value
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question 7 of 10 which data set has the largest range? a. 12, 15, 16, 1…
B. 31, 36, 38, 41, 42, 54, 37
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question 6 of 10 what does the standard deviation of a set of data tell…
A. How much each data point differs, on average, from the mean value of the set
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question 1 of 10 a scientist recorded the number of geese found in a pa…
D. 9
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a sample was done, collecting the data below. calculate the standard de…
\(8.4\)
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find the 5 number summary for the data shown x 4.6 6 6.3 9.7 10.3 11.1 …
4.6, 9.7, 12.6, 20.2, 28
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the average price of a domestic airline ticket in a particular region w…
The relative change in airfare from 1991 to 2020 was $-43.5\%$ and the relative change in CPI was $98.8\%$
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the average price of a domestic airline ticket in a particular region w…
The average fare would have been $\$716$. This means the airfares rose less than expected.
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use the appropriate formulas and methods to answer the following questi…
range = 43 stdev $\approx15.48$
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a survey was conducted at a local ballroom dance studio asking students…
a) $9.8\%$ b) $14.8\%$ c) $29.5\%$ d) $21.3\%$ e) $63.9\%$
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you are playing a video game where your character, matt, is fighting an…
A. 0.75 B. 0.67 C. 0.75 D. 0.265 E. 0.0125
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a collection of temperature values has mean 82.25 degrees and standard …
Saturday's temperature was 1.00 standard deviations above the mean.
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a collection of temperature values has mean 82.25 degrees and standard …
Saturday's temperature was 1.00 standard deviations above the mean for this exam.
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the mean of a set of data is 3.14 and its standard deviation is 4.76. f…
A. 2.26
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for the five - number summary given below, identify where the data is b…
D. The data is bunched up the most between 315 and 346. This is because the gap between 315 and 346 is the shortest.
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for the numbers written below, identify where the data is bunched up th…
D. The data is bunched up the most between 315 and 346. This is because the gap between 315 and 346 is the shortest.
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question 9 of 10 why are graphs helpful for displaying data? a. they do…
C. They help you identify patterns in the data.
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for data with a bell - shaped distribution, we are promised (a) (b) of …
(a) C. about (b) E. 99.7%
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the quantitative data set under consideration has roughly a bell - shap…
a. $95$ b. $291$
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a quantitative data set has mean 24 and standard deviation 3. a. what p…
a. 88.89 b. 70
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a jar contains 6 red marbles, numbered 1 to 6, and 11 blue marbles numb…
a) $\frac{1}{11}$ b) $\frac{1}{2}$
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the data set below shows the additional sleep in hours obtained by a sa…
a. $n = 10$ b. $\sum x_{i}=18.2$ c. The sample mean is $1.82$
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a cbs news poll conducted june 10 and 11, 2006, among a nationwide rand…
P(Democrat) = 0.363 P(better) = 0.109 P(better|Democrat) = 0.051 P(Democrat|better) = 0.169 P(Democrat and better) = 0.018
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assume that 12 jurors are randomly selected from a population in which …
\(P(x = 5)=0.0044\) \(P(x\leq5)=0.0052\) yes
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suppose that 49% of people own dogs. if you pick two people at random, …
$0.2401$
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on a 7 - question multiple - choice test, where each question has 3 ans…
$\frac{2186}{2187}$
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an experiment consists of randomly selecting a single digit (from 0 to …
A and B
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in parts (a) and (b), identify whether the events are disjoint, indepen…
a) independent b) neither c) false
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events a and b are mutually exclusive if they can not occur simultaneou…
\(P(A \text{ and } B)=0\)
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question 4 0/2 pts 3 9 details two events are called independent when t…
the outcome of either event does not affect the probability that the other event happens.
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a random variable is defined as a process or variable with a numerical …
D. i and iii
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a group of people were asked if they had run a red light in the last ye…
$0.2994$
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a couple decides to have children until they have one boy and one girl,…
S = {GB, BG, BBG, GGB, BBB, GGG}
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what does the word aroma mean in the passage? (a) taste (b) sound (c) s…
c) Smell
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the scatter plot shows the time spent watching tv, x, and the time spen…
1.36 hours
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1 what does the word \palette\ mean in the passage? a) tool for paintin…
# Breve explicación: La palabra "palette" en inglés se refiere comúnmente a un "herramienta para pintar" donde el artista mezcla los pigmentos, o a un "rango de colores". En este …
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section 2, module 2—hard 10 mark for review two data sets, o and p, are…
C. The median of data set O is less than the median of data set P.
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suppose the demand for eggs sold by a convenience store is given by the…
1. $100.000$ 2. $-50.000$ 3. $-2.000$ 4. Elastic
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assume that 30% of city employees in city a ride the bus to work. consi…
When the percentage of city employees who ride the bus to work is 10% higher in City B than in City A, 33% of city employees in City B ride the bus to work. When the percentage of…
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assume that 30% of city employees in city a ride the bus to work. consi…
33
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the main, or central, idea of the passage is baseball players and coach…
It cites examples of potential signals.
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read the passage. do you speak baseball? if you watch a professional ba…
Baseball players and coaches use secret signals to communicate strategy to each other.
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when an apple tree is ready for the world to come and eat, there isn’t …
Prediction or indication of something to come
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what is an effective strategy for enhancing a sense of self? engage in …
Identify values that are meaningful.
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quicktune pty. ltd. decided to keep records on the time (minutes) it ta…
68
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the numbers of regular - season wins for 10 football teams in a given s…
$4.4$
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what does forecast mean in line 11? curiosity predict delay desire
B. predict
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the numbers of regular - season wins for 10 football teams in a given s…
$19.6$
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what does the underlined word mean in the following sentence? esta cama…
A. waitress
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use the data set listed to find the following values: 6, 10, 4, 16, 8, …
$9.5$
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the ages (in years) of a random sample of shoppers at a gaming store ar…
$11.8$
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question 1 of 10 what did edgar allan poe mean when he said a literary …
D. That all aspects of the piece should work together to create a certain effect
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question 3 of 10 with which statement would walt whitman most likely ag…
D. Death doesn't necessarily mean the end to one's existence.
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find the mean, median, and mode of the data, if possible. if any of the…
A. The mean score is $11.2$
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find the mean, median, and mode of the data, if possible. if any of the…
A. The mean score is $11.0$
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the blood platelet counts of a group of women have a bell - shaped dist…
a. 68 b. 99.7
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listed below are prices in dollars for one night at different hotels in…
The range of the sample data is 191.0 dollars. The standard deviation of the sample data is 57.6 dollars. The variance of the sample data is 3315.6 dollars². A. The measures of va…
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(a) find the five - number summary, and (b) draw a box - and - whisker …
8
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the principle of redundancy is used when system reliability is improved…
a. 0.114 b. 0.01300 c. 0.00148 d. B. Yes, because total malfunction would not be impossible, but it would be unlikely.
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every 3 months, the government releases median weekly earnings of full …
a. \(1020\) b. \(900.85\), less than
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based on the following calculator output, determine the range of the da…
105
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youre excited that mia is adjusting well in her new community and is en…
D. Engagement
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let event a = subject is telling the truth and event b = polygraph test…
C. The probability that the polygraph indicates lying given that the subject is actually telling the truth.
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use the frequency histogram to complete the following parts. (a) determ…
(a) 5 (b) Greatest frequency: 250, Least frequency: 50 (c) 10 (d) The data is right - skewed.
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construct a frequency distribution and a relative - frequency histogram…
| Class | Frequency | | ---- | ---- | | 1 - 2 | 7 | | 3 - 4 | 10 | | 5 - 6 | 11 | | 7 - 8 | 2 | | 9 - 10 | 6 | The class with the greatest relative frequency is 5 - 6. The class w…
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question 18 of 20 look at the dictionary entry that follows this senten…
A. A synchronized sounding of two or more musical tones
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question 14 of 20 read the sentence from the declaration of independenc…
A. The word "voice" gives "justice" and "consanguinity" a human quality.
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question 21 1 pts in john 3 jesus met _, a jewish ruler in jerusalem, t…
B. Nicodemus
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question 1 of 20 read these sentences from the declaration of independe…
A. He uses parallelism to create a strong rhythm and memorable ideas.
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which statements best describe characteristics of an allegory? choose a…
teaches a lesson comments on political, religious, and social issues can be analyzed to reveal an implicit meaning uses characters to represent real people or abstract ideas
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(a) find the five - number summary, and (b) draw a box - and - whisker …
7
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question #10 find the interquartile range and sample standard deviation…
IQR = 3.5 and s = 2.96
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(a) find the five - number summary, and (b) draw a box - and - whisker …
\(5.25\)
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(a) find the five - number summary, and (b) draw a box - and - whisker …
(a) \(Min = 2\), \(Q_1=5.25\), \(Q_2 = 7\), \(Q_3=8.75\), \(Max = 9\) (b) A box - and - whisker plot is drawn as described above with a number line, a box from \(5.25\) to \(8.75\…