統計と確率
データ分析、確率分布、仮説検定、統計手法。
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in 2019, 166,459 people (tourists and locals) attended the cirque du so…
223502 161
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1. the vertex of a parabola is the point on a parabola that intersects …
The vertex of \(B(x)\) is \((1,1.5)\). This means that \(1\) second after the beachgoer begins watching, the bird reaches a maximum height of \(1.5\) meters. This is a maximum.
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13. a random sample is selected from a normal population with a mean of…
Yes, the sample mean is sufficient to conclude that the treatment has a significant effect.
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question 1 given ( n(acap b)=17 ), ( n(a)=42 ), ( n(b)=144 ), calculate…
169 42
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a beachgoer is observing the ocean from afar. they observe a bird divin…
The x - intercepts of \(D(x)\) are \((2,0)\) and \((6,0)\). In context, this means that the height of the dolphin above sea level was \(0\) meters after \(2\) seconds and \(6\) se…
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which of the following best describes the relationship between x and y …
B. As \(x\) increases, \(y\) tends to increase.
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the bar graph shows the number of visitors at a store each day the stor…
2
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impact of outliers on interpretations of scatterplot c when analyzing a…
Outliers can distort the perception of the relationship between variables. By excluding them, we can focus on the main trend of the majority of the data points and get a more accu…
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18) a skeptical paranormal researcher claims that the proportion of ame…
- 18) B. Reject the claim that the proportion of Americans that have seen a UFO is equal to 5 in a thousand when that proportion is actually 5 in a thousand. - 19) B. Fail to reje…
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recognizing the impact of outliers which statement is true? there is no…
By excluding the outlier, a better description can be given for the data set.
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14) the owner of a football team claims that the average attendance at …
D. There is not sufficient evidence to support the claim that the mean attendance is greater than 523. 15)
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a bag contains 30 red, 40 blue, and 50 white buttons. you pick one butt…
\(\frac{2}{3}\)
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according to carl jung, an inherited pattern of thought, or symbolic im…
D. archetype
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a bag contains 15 black, 17 green, 22 pink, and 29 yellow tokens. you p…
\(\frac{44}{83}\)
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an inherited pattern of thought or symbolic imagery that has universal …
archetype
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which data sets (in graphic or table form) contain outliers? check all …
The first scatter - plot, the first table, and the second table.
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self - esteem for adolescents (mcgee, williams, howden - chapman, marti…
a. Yes, the sample provides enough evidence to conclude that self - esteem scores for these adolescents are significantly different from those of the general population. b. Cohen'…
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a banana is launched from a slingshot into the air from a cliff. the pa…
True
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question 5 what is symbolism? a tale that involves king arthur or his k…
the use of objects to represent the meaning of abstract ideas or qualities.
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the scatterplot shows the time driven on a trip compared to the distanc…
The data set has \(1\) outlier. The point \((8,75)\) is an outlier in the data set.
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the scatterplot shows the time driven on a trip compared to the distanc…
The data set has \(1\) outlier. The point \((6,75)\) is an outlier in the data set.
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formulate the indicated conclusion in nontechnical terms. be sure to ad…
B. There is sufficient evidence to support the claim that the mean is greater than 32 miles per gallon.
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a sample of registered voters were asked if they supported a carbon tax…
Normal distribution with a mean of \(76.23\%\) and standard deviation of \(2.62\%\)
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read the excerpt from the declaration of independence. then, answer eac…
A. To “alter or abolish” the government
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use the given information to find the p - value. also, use a 0.05 signi…
8) D. 0.0764; fail to reject the null hypothesis 9) C. 0.0202; reject the null hypothesis 10) B. 0.1032; fail to reject the null hypothesis 11) D. 0.4354; fail to reject the null …
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read the excerpt from the declaration of independence. then, answer eac…
A. To “secure these rights”
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read the excerpt from the declaration of independence. then, answer eac…
A. They cannot be taken away.
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which describes the scatterplot of a cars value compared to the age of …
As the age of a car increases, its value decreases.
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question 3 what is an archetype? • the use of objects to represent the …
a recurring symbol or character
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7) the claim is that the proportion of drowning deaths of children attr…
C. 3.05
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read the excerpt from the declaration of independence. then, answer eac…
C. Equality
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here is a pattern of circles. the number of circles along the bottom, c…
- The total number of circles. - The number of blue circles. - The number of white circles.
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7) the claim is that the proportion of drowning deaths of children attr…
D. 0.0764; fail to reject the null hypothesis
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read the excerpt from the declaration of independence. then, answer eac…
A. They are created that way.
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which scatterplots display an example of a cluster? check all that appl…
The first and the third scatter - plots.
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multiple choice. choose the one alternative that best completes the sta…
1. C. \(H_0:\mu = 23\), \(H_1:\mu>23\) 2. B. \(H_0:\mu = 68800\), \(H_1:\mu>68800\) 3. C. \(H_0:\mu = 48^{\circ}\), \(H_1:\mu eq48^{\circ}\) 4. C. \(H_0:\sigma = 14.7\), \(H_1:\s…
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using scatterplots to show relationships between variables which descri…
- There is a relationship between the time walked and the distance walked. - As the number of minutes walked increases, the number of feet walked increases. - Distance walked is t…
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question 4 which of the following was not in the mexican constitution o…
Reparations toward Indigenous peasants who had not been paid what they were worth for centuries
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10. the personality characteristics of business leaders (e.g., ceos) ar…
We fail to reject the null hypothesis \(H_0\). There is not enough evidence at the \(\alpha = 0.05\) level to conclude that the company's business leaders' openness to experience …
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complete the sentence. braden knew that he had heard the word auspiciou…
use the word in a sentence
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find the midrange for the following group of data items. 11, 8, 7, 6, 1…
\(8.5\)
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find the mode for the following group of data items. if there is no mod…
A. The mode(s) is/are \(3.6,5.3\)
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find the median for the following group of data items. 9, 6, 5, 4, 10, …
\(5.5\)
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determine whether the statement is true or false. if the statement is f…
D. The statement is false. To make the statement true, change "median" to "mode" in each instance.
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the term balance of power means two leaders should always share power. …
no state should be more powerful than the rest.
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1. what is the term used to describe a political system in which power …
1. c) Federation 2. c) Monarch 3. b) Legislative branch 4. c) Jean - Jacques Rousseau 5. a) Proportional representation 6. a) Patronage 7. c) Judicial branch 8. a) Separation of p…
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determine whether the following statement is true or false. if the stat…
A. The statement is true because these numbers are generally located toward the center of a distribution.
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when salome, in elizabeth carys the tragedy of mariam, says i mean not …
d. None of these answers are correct.
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a sample of 621 residents from a community were surveyed about proposed…
B. II only
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fill in the blank so that the resulting statement is true. if n data it…
\(\frac{n + 1}{2}\)
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which statement is correct when a scatterplot is constructed? the indep…
The independent variable is the input variable and should be represented by the \(x\) - axis.
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fill in the blank so that the resulting statement is true. \\( \\frac {…
mean
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select the word or phrase that is redundant and can be removed without …
later
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select the word or phrase that is redundant and can be removed without …
The redundant phrase is "in addition".
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select the word or phrase that is redundant and can be removed without …
each year
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select the word or phrase that is redundant and can be removed without …
about her life
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select the word or phrase that is redundant and can be removed without …
The redundant word is "correctly".
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use the text to put the events in order. making a memory has three main…
1. You encode information. 2. You store information. 3. You retrieve information.
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select the word or phrase that is redundant and can be removed without …
Either "about" or "approximately" can be removed. For example, removing "about" gives "The Centers for Disease Control and Prevention estimates that approximately one in six Ameri…
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when a scatterplot is created from a table of values, which statement i…
It is possible for two points to have the same \(x\) - coordinate and the same \(y\) - coordinate.
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select the word or phrase that is redundant and can be removed without …
On their faces
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select the word or phrase that is redundant and can be removed without …
"important" (either "essential" or "important" can be removed as they are redundant, but if we follow the order in the text, "important" is the one to be removed here).
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select the word or phrase that is redundant and can be removed without …
around
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select the word or phrase that is redundant and can be removed without …
Either "flammable" or "combustible" (since they are redundant as they mean nearly the same thing regarding the property of catching fire for the hydrogen gas).
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select the word or phrase that is redundant and can be removed without …
"found"
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select the word or phrase that is redundant and can be removed without …
for example
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select the word or phrase that is redundant and can be removed without …
"truthful" (or "honest", as either can be removed since they are redundant)
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select the word or phrase that is redundant and can be removed without …
plain
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select the word or phrase that is redundant and can be removed without …
descriptive
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select the word or phrase that is redundant and can be removed without …
"incinerate and" or "and burn" (either one can be removed as they are redundant).
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3. suppose that a researcher is interested in the effect of a new colle…
a. - Null hypothesis (\(H_0\)): The new college preparation course has no effect on test scores. - Alternative hypothesis (\(H_1\)): The new college preparation course has an effe…
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select the word or phrase that is redundant and can be removed without …
at first
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select the word or phrase that is redundant and can be removed without …
still
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select the word or phrase that is redundant and can be removed without …
celebratory
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describe the process of creating a scatterpl the cell phone company dec…
First, identify age as the independent variable (x - axis) and texting speed as the dependent variable (y - axis). Then, prepare the data as pairs of (age, texting speed) values. …
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the graph shows the data of texting speed according to time. use the sc…
No, there is no relationship displayed.
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select the word or phrase that is redundant and can be removed without …
possibly
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identifying a relationship in a scatterplot the graph shows the data of…
No, there is no relationship displayed.
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this passage from the charter of 1732 primarily describes which reason …
C. philanthropy
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select the word or phrase that is redundant and can be removed without …
unnamed
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select the word or phrase that is redundant and can be removed without …
"bravely" or "courageously"
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how is a relationship determined when looking at a scatterplot?
Look at direction (positive/negative), strength (closeness of points), and form (linear/non - linear).
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select the word or phrase that is redundant and can be removed without …
mental picture
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the table below shows part of the texting skills data collected by the …
texting speed
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select the word or phrase that is redundant and can be removed without …
"in the evening"
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4. the average height of students is 65 inches with a standard deviatio…
a. The z - score is \(\frac{5}{3}\approx1.67\). b. The student's height of 70 inches is approximately \(1.67\) standard deviations above the mean height of 65 inches.
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select the word or phrase that is redundant and can be removed without …
and set free
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how many ways can a high school basketball coach find the 5 players for…
\(2002\)
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3. the salaries (in thousands) at a small company 25, 28, 30, 30, 32, 3…
a. The person earning \(39000\) is at approximately the \(57^{th}\) percentile. b. The \(75^{th}\) percentile is \(43500\) (since \(43.5\times1000 = 43500\))
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2. the data below show the number of hours of sleep ten students got la…
a. The percentile for the student who slept \(7\) hours is \(50\). b. The percentile for the student who slept \(9\) hours is \(80\).
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explaining the purpose of a scatterplot a cell phone company collected …
A scatterplot is used to represent the data of texting speed and time because it can visually display the relationship between these two quantitative variables. The purpose of sca…
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a cell phone company collected data about students texting skills. they…
The independent variable is time. The dependent variable is texting speed.
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1. the following are the ages (in years) of participants in a local 5k …
a. The participant who is 17 years old is at approximately the 66.7th percentile. b. This means that approximately 66.7% of the participants in the local 5K race are 17 years old …
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refer to the scatter plot. would you conclude that a linear or nonlinea…
Nonlinear
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what did you learn? question 10 of 10 what does an account you dont rec…
You may be the victim of identity fraud.
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what does the phrase \dont let the same team beat you twice\ mean? it m…
C. To make sure your mistakes aren't the cause of losing in the present
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if you ________ something, you notice, detect, or understand it, often …
- First question: discern - Second question: belligerent
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name date period cool down lesson 7: the correlation coefficient cool d…
1. A correlation coefficient tells you the direction (positive or negative) and the strength (how close the data points are to a line of best - fit) of a linear relationship betwe…
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identify if there is a relationship between the variables. no, there is…
Yes, the relationship displayed shows arm span increasing as height increases.
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3. when 302 college students are randomly selected and surveyed, it is …
(a) The 99% confidence interval is $(0.331,0.477)$ (b) Since the upper - bound of the 99% confidence interval ($0.477$) is less than $0.5$, we do not have sufficient evidence to s…