统计与概率
数据分析、概率分布、假设检验与统计方法。
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the average number of cars entering a shopping center parking lot is co…
\(y=-0.014x^{2}+3.371x - 10.071\)
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the grade point averages for 10 randomly selected students are listed b…
D. \((0.81,1.83)\)
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construct a 95% confidence interval for the population standard deviati…
D. \((11.202,24.129)\)
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read this excerpt from the dark game. another thing that changed very l…
by including more detailed information about who did fieldwork for the Union and how it was done
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the average number of cars entering a shopping center parking lot is co…
\(y=-0.006x^{2}+1.736x + 37.929\)
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14. quartiles are: a. only used in skewed distributions b. divisions of…
d. Divisions of a dataset into four equal parts
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3. which type of graph is best to show the percentage of gases in earth…
a circle graph
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13. what does the range of a dataset tell you? a. the difference betwee…
A. The difference between the highest and lowest values
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5. georgias neighbors pay her $20 upfront and $6 per hour to walk their…
a. Graph \(y = 6x + 20\) (y - intercept at \((0,20)\), slope \(6\)) and \(y=10x\) (passing through \((0,0)\), slope \(10\)). b. The solution is \((5,50)\). c. After \(5\) hours of…
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a human cannonball is blasted out in a parabolic shape relative to the …
\(-43.0\)
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11. the average (mean) of a data set is calculated by: a. dividing the …
A. Dividing the sum of all numbers by the count of numbers
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10. which of the following is an example of quantitative data? a. numbe…
A. Number of books read in a month
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9. which graph is best for showing changes over time? a. line chart b. …
A. Line Chart
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a human cannonball is blasted out in a parabolic shape relative to the …
\(f(x)=-8x^{2}+26x + 56\)
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8. how do you calculate the range of a dataset? a. identify the most fr…
d. Subtract the smallest value from the largest value
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3.5 understand: recognizing patterns in scatterplots due on 11.13.2025 …
Points grouped in specific areas
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7. which method is commonly used to collect qualitative data? a. calcul…
d. Observations
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6. which measure of central tendency is most affected by extreme values…
d. Mean
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5. a positive relationship in a scatter plot means: a. the variables ar…
B. As one variable increases, the other also increases
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4. if the first quartile (q1) is 25 and the third quartile (q3) is 75, …
B. 50
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predict what the amount spent will be in 2008. amount $ type your answe…
12.9
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3. which of the following techniques clusters similar data together? a.…
d. Grouping
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2. what is the purpose of using spreadsheets in statistics? a. to creat…
d. To organize and analyze data
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1. what is the mode of a data set? a. the middle value b. the average v…
d. The most frequently occurring value
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the table provided shows the amounts (in billions $) spent on admission…
\(f(x)=0.121x^{2}+0.307x + 6.3\)
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20. the number of knives sold per month by three salespeople for four d…
D. The average number of knives sold by the three salespeople in December was greater than the average number of knives sold by the three salespeople in October.
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what does the mode represent in a dataset? a. the middle value b. the d…
C. The most frequently occurring value
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which of the following is a visual representation of data that shows pr…
d. Pie Chart
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which graph is best for showing changes over time? a. bar graph b. pie …
d. Line Chart
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what is the median of the dataset 4, 8, 6, 5, 9? a. 6 b. 5 c. 4 d. 7
A. 6
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19. the circle graph gives the distribution of the colors of markers in…
B. 100
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select the correct answer. after doing a close reading, why should you …
B. to reveal hidden meanings
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select all the correct answers. which of the following are appropriate …
Tolstoy demonstrates the relationship between life and death through Ivan Ilych’s battle with illness. Tolstoy demonstrates a spiritual message of how to live a meaningful life in…
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what is the purpose of using spreadsheets in statistics? a. to organize…
A. To organize and analyze data
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how do you calculate the range of a dataset? a. add all the values toge…
C. Subtract the smallest value from the largest value
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what is the range of the scores? 541 412 500 622 601 524 a. 101 b. 154 …
\(210\) (Option D)
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541 412 500 622 601 524 what is the range of the scores? a. 101 b. 154 …
A. \(\$5.40\)
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q show what you know! the following coordinate points represent the num…
A negative trend.
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the deviation is a measure that is used to quantify the amount of varia…
1. Standard 2. Spreadsheet 3. Mean
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6. what is meant by the wordreciprocal in math? reciprocal in math mean…
Reciprocal in math means the numerator and denominator of two values are flipped.
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probabilistic and statistical reasoning: includes classifying data, con…
A. 6
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select the correct answer. what is the term for words from different la…
B. cognates
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4. if the slope of the two equations you just entered into desmos is th…
Because the slope of the lines is the same, but the 'b' values are different, so they intersect the y - axis at different values.
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data refers to information that describes qualities or characteristics.…
1. Qualitative 2. Histogram 3. Inter - quartile range (IQR) 4. Statistics 5. Pie
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a scientist decides to compare the speed (mph) of a particular vehicle …
Speed: \(55\) mph, Mileage: \(30.4\) mpg
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show what you know! the following coordinate points represent the hours…
Negative trend.
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key vocabulary - find and define directions: find these words in the st…
1. [✓] the machine doesn't do what the narrator wants 2. [✓] many spiderwebs together 3. [✓] old valuable things or things that might be valuable
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a scientist decides to compare the speed (mph) of a particular vehicle …
18.6
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a student is conducting research to answer a question. read the researc…
B. The scholarly article is credible because it includes relevant data from an academic source.
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4. use what you know about prefixes and roots to choose the meaning of …
C. sending or receiving signals in all directions
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select the correct answer. what is meant by the tradition of courtly lo…
A. the tradition of love and courtship followed by medieval nobles
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linear equations w/ distribution (lev 3) question solve for $x$: $-2=-1…
$x = 0$
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a scientist decides to measure the speed (mph) of a particular vehicle …
\(f(x)=-0.009x^{2}+1.159x + 7.102\)
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4:51 i have two very mean younger brothers. simple compound complex com…
1. Simple 2. Complex 3. Compound
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consider the four data sets shown in the accompanying table. complete p…
\(-0.117\)
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what is the mode of a data set? a. the most frequently occurring value …
A. The most frequently occurring value
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conducting surveys is a method used to collect: a. only quantitative da…
B. Both quantitative and qualitative data
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the following scatterplot shows the relationship between the number of …
Negative trend.
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which of the following is an example of quantitative data? a. all of th…
B. Number of books read in a month
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the average (mean) of a data set is calculated by: a. adding the highes…
d. Dividing the sum of all numbers by the count of numbers
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which method is commonly used to collect qualitative data? a. counting …
B. Observations
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what is the primary purpose of data collection? a. to inform decision -…
A. To inform decision - making processes
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the scatterplot shows real - world data from several drivers. each poin…
Negative correlation.
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4. if sam, joe, and debbie each flip a coin, how many possible outcomes…
8
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what does analyzing data help us do? a. draw conclusions and make infor…
A. Draw conclusions and make informed decisions
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below. name brand store brand 22 30 25 33 22 27 21 20 25 26 15 23 20 23…
C. Yes. The name brand appears to have more chips per cookie.
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when values in a data set are arranged in order, the is the middle valu…
1. median 2. data - driven 3. analysis 4. privacy
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(a) identify the shape of the distribution, and (b) determine the five …
a. B. The distribution is skewed right. b. The five - number summary is \(2,5,7,9,20\)
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synonyms choose the word that is most nearly the same in meaning as the…
Synonyms: 1. b. senseless 2. a. jolted 3. c. compose 4. c. deputy 5. d. calculate 6. c. loot Antonyms: 1. b. industrious 2. d. shrivel 3. c. rejoice 4. a. considerable 5. c. relia…
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suppose that $\\chi^{2}$ follows a chi - square distribution with 20 de…
a. \(P(\chi^{2}\leq16)\approx0.304\) b. \(k\approx34.17\)
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read the passage from \by the waters of babylon.\ i went north - i did …
"I had long gone past what was forbidden, and I entered the likeliest towers, looking for the food of the gods."
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the ethical principle that requires informing participants about the st…
1. informed 2. mean 3. confidentiality 4. range 5. median
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which phrase is closest in meaning to \fruitless efforts\ as it is used…
C. failed attempts
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data that can be measured or counted is referred to as data. data that …
1. Quantitative 2. Qualitative 3. Survey 4. Naturalistic observation 5. Mode
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the following data represent the dividend yields (in percent) of a rand…
\(0,0.13,0.78,2.49,3.62\)
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the following data represent the dividend yields (in percent) of a rand…
C. The distribution is roughly symmetric.
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a group of students tracked how many minutes they listened to music eac…
1. There is a positive, but not perfectly linear, association between music - listening time and mood rating. 2. The unusual data point (outlier) weakens the strength of the posit…
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goats, sheep, and swine are all quadrus, meaning they walk on four legs…
quadrupeds
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the following data represent the dividend yields (in percent) of a rand…
The five - number summary is $0$, $0.25$, $1.04$, $2.67$, $3.59$
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the following data represent the dividend yields (in percent) of a rand…
The five - number summary is \(0\), \(0.25\), \(1.04\), \(2.67\), \(3.59\)
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the following data represent the dividend yields (in percent) of a rand…
\(0,0.17,0.83,2.53,3.59\)
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the graph represents lees savings account over time. analyze the functi…
The function is decreasing. The rate of change is \(-1.5\) (or \(-\frac{3}{2}\)), which means Lee's savings decrease by \(\$1.50\) per month. The initial value (\(y = 15\) when \(…
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if the first quartile (q1) is 25 and the third quartile (q3) is 75, wha…
A. 50
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which visualization tool is best for understanding the distribution of …
b. Histogram
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the following data represent the dividend yields (in percent) of a rand…
\(0,0.17,0.83,2.53,3.59\)
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which of the following is a graphical representation that shows the rel…
A. Scatter plot
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which measures are used in the five - number summary? select all that a…
A. Maximum value, B. Third quartile, D. Minimum value, E. First quartile, H. Median
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what does the range of a dataset tell you? a. the average value b. the …
B. The difference between the highest and lowest values
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the median of a dataset is: a. the middle value when the data are arran…
A. The middle value when the data are arranged in order
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the data represent the age of world leaders on their day of inauguratio…
B. The distribution is roughly symmetric.
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a positive relationship in a scatter plot means: a. as one variable inc…
a. As one variable increases, the other also increases
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quartiles are: a. divisions of a dataset into four equal parts b. divis…
a. Divisions of a dataset into four equal parts
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what is the interquartile range (iqr) used to measure? a. the middle fi…
A. The middle fifty percent of a dataset
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a dataset is considered right - skewed if: a. the mean is greater than …
A. The mean is greater than the median
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the data represent the age of world leaders on their day of inauguratio…
\(41,48,54,61,69\)
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use the side - by - side boxplots shown to complete parts (a) through (…
B. Skewed right—the median is left of center in the box and the left whisker is shorter than the right whisker.
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the range between the first quartile (q1) and the third quartile (q3) i…
inter - quartile range (IQR)
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use the side - by - side boxplots shown to complete parts (a) through (…
A. Variable y—the interquartile range of variable y is larger than that of variable x.
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use the side - by - side boxplots shown to complete parts (a) through (…
50
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the measure that indicates how spread out the data points of a dataset …
1. Standard Deviation 2. Skewness 3. Scatter Plot 4. Outliers