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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kevin went fishing and is using a scatterplot to analyze the relationsh…
The points on the scatterplot will go up from left to right because as the weight in pounds increases, the weight in kilograms increases.
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constructing scatterplots pages in book vs. time needed to read number …
6
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constructing scatterplots trent collected data from his basketball team…
He switched the input and output; height should be on the \(x -\)axis.
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example there are 500 students who participate in an after - school spo…
a. \(\frac{1}{4}\) b. \(0.25\) c. Using the fraction: \(\frac{1}{4}\times500 = 125\); Using the decimal: \(0.25\times500=125\) d. The answer in part (c) is the same as the answer …
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contradict has the same or almost the same meaning as: risk dispute obs…
dispute
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argue means to: have a disagreement about something commit a faux pas o…
have a disagreement about something
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describing how to create a scatterplot data was collected about the amo…
- Plot the ordered pairs as points on the graph. - Rainfall (inches) is the output and labeled as the y - axis. - Identify independent and dependent variables as the input and out…
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example there are 500 students who participate in an after - school spo…
a. \(25\%=\frac{1}{4}\) b. \(25\% = 0.25\) c. The multiplication expressions are \(\frac{1}{4}\times500\) or \(0.25\times500\), and their values are \(125\)
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approximate has the same or almost the same meaning as: come close call…
A. come close
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constructing scatterplots the data is plotted as points so a relationsh…
No, there is no relationship between the number of homeruns and the years played.
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analyze has the same or almost the same meaning as: conserve study prop…
study
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primary means : a preliminary election where nominees are chosen act of…
a preliminary election where nominees are chosen
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contrast that with more traditional setups, which usually leave you wit…
put in opposition to show or emphasize differences
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what is the literal meaning of the word islam in arabic? prayer submiss…
submission
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weather data is collected to analyze wind speed according to temperatur…
Label A = Temperature, Label B = Wind Speed, Column A = Temperature, Column B = Wind Speed
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the practice of selective incorporation means that the bill of rights w…
The option "sometimes be applied to the states by the Court" is correct.
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constructing scatterplots explaining the difference of independent and …
The independent variable influences the dependent variable. The dependent variable depends on the independent variable. The independent variable is the input. The dependent variab…
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determining independent and dependent variables interpret the independe…
Independent variable is time. Dependent variable is texting speed.
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determining independent and dependent variables interpret the independe…
Independent variable: years played; Dependent variable: homeruns.
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determining independent and dependent variables interpret the independe…
1. Independent variable: years played; Dependent variable: homeruns 2. Independent variable: time in minutes; Dependent variable: texting speed (characters per minute)
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constructing scatterplots population of ohio what relationship between …
As the number of years increased, the population increased.
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constructing scatterplots what is the purpose of using a scatterplot? c…
to plot points for two sets of data, to organize bivariate data, to visualize relationships between data, to compare dependent and independent variables
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constructing scatterplots what is the purpose of using a scatterplot? c…
- to plot points for two sets of data - to organize bivariate data - to visualize relationships between data
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which is a main idea in the right to privacy? people can make their own…
People can make their own lawful decisions.
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constructing scatterplots identify if there is a relationship between t…
Yes, the relationship displayed shows arm span increasing as height increases.
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the case of furman v. georgia (1972) resulted in a reinterpretation of …
cruel and unusual punishment.
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identification & meaning complete the table below by identifying the ty…
| Text | What type of figurative language is being used? | Literal Meaning | |---|---|---| | Princess Penny was head over heels for Prince Preston and wanted to go to the ball wit…
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pre-algebra ic sem 2 fall 2025 constructing scatterplots classifying va…
Independent variables: year, height, laps. Dependent variables: number of girls, shoe size, calories burned.
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classifying variables as independent and dependent identify the indepen…
1. Independent: year; Dependent: number of girls 2. Independent: height; Dependent: shoe size 3. Independent: laps; Dependent: calories burned
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universal set sports arts 76 36 24 14 a) there were a total of high sch…
a) \(150\) b) \(112\) c) \(60\) d) \(36\) e) \(148\) f) \(14\) g) \(24\) h) \(\frac{112}{150}=\frac{56}{75}\) i) \(\frac{148}{150}=\frac{74}{75}\)
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the median of 5, 7, 2, 9, 8 is: 1 point 5 7 8 6
7
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the median of 5, 7, 2, 9, 8 is: 1 point 5 7 8 6
7
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the median of 5, 7, 2, 9, 8 is: 1 point 5 7 8 6
7
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the median of 5,7,2,9,8 is: 1 point 5 7 8 6
7
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two months ago, the mean daily rainfall in a local city was 9.4 cm. the…
Last month, the amount of rain that fell each day varied less than the month before.
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pre-algebra ic sem 2 fall 2025 comparing measures of center and variabi…
Step 3
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theo recorded the means and mean absolute deviations of his language ar…
\(2\)
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a survey of 120 high school students asked whether they regularly use i…
a) \(A = 10\), \(B = 60\), \(C = 45\), \(D = 5\) b) \(45\) c) \(115\) d) \(5\)
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polinas math scores are shown in the table. polinas math scores math sc…
$8.8$
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a survey was conducted to see if people like marvel comics and whether …
a) \( A = 5\), \( B = 65\), \( C = 17\), \( D = 13\) b) \( 5\) c) \( 13\)
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elias likes to read during his summer breaks. the table shows the numbe…
The modes differ by 40 and the ranges differ by 40.
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the means and mean absolute deviations of the individual times of membe…
\(0.09\)
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step 1 add the scores. 76 + 62 + 94 + 80 = 312 step 2 divide the sum of…
Step 4
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a) there are a total of people in the survey b) % of teenagers own an i…
a) \(140\) b) \(57.1\%\) c) \(85.7\%\) d) \(32.1\%\) e) \(42.9\%\) f) \(28.6\%\)
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a school club had a sale last spring. the graph shows the number of thi…
(a) \(30\) (b) \(25\)
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ms. joness students voted for their favorite kind of pie. the graph sho…
(a) 15 (b) 12
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a survey was conducted and asked people if they were right handed and w…
a) 34 b) 22 c) 13 d) 8 e) 5 f) 7
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what is the approximate ratio of the difference in means to the mads of…
\(6\)
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rearrange the sentence below to remove any wordy sections. do not chang…
Benefits of open campus lunch policies outweigh risks.
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analyzing mean absolute deviations robins scores: 99, 108, 102, 107, 11…
Since Evelyn’s MAD is greater than Robin’s MAD, Evelyn’s scores varied more than Robin’s.
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rearrange the sentence below to remove any wordy sections. do not chang…
Video games are the highest forms of art because they are interactive.
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finding the mean absolute deviation what is the mean absolute deviation…
\(5.6\)
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some students take the bus to school. the graph shows how many in each …
(a) \(60\) (b) \(30\)
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8. an experienced server at a restaurant wondered if suggesting a speci…
a. The observed difference is unlikely due to chance. b. No. c. Yes. d. Suggesting a dessert is associated with a higher average bill (possible causal link due to random assignmen…
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rearrange the sentence below to remove any wordy sections. do not chang…
Americans expecting children be required to take parenting classes.
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rearrange the sentence below to remove any wordy sections. do not chang…
All American students in middle and high school should be required to learn Spanish.
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the mean of evelyns scores was 138. complete the chart to find the dist…
\(x = 13\), \(y = 1\), \(z = 7\)
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comparing measures of center and variability finding the mean absolute …
\(5.2\)
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rearrange the sentence below to remove any wordy sections. do not chang…
Teachers should receive quarterly grades, just as their students do.
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employees at a specific company were surveyed about whether they drive …
a) \(65\) b) \(52\) c) \(30\) d) \(5\) e) \(22\) f) \(60\) g) \(80\%\)
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rearrange the sentence below to remove any wordy sections. do not chang…
Despite the rise of word processors, learning cursive benefits young students.
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the mean of robins scores was 107. complete the chart to find the absol…
\(x = 5\), \(y = 0\), \(z = 12\)
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robin and evelyn are playing a target game. the object of the game is t…
Robin is winning because the person with the lower mean is closer to the center of the target.
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robin and evelyn are playing a target game. the object of the game is t…
$138$
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bryant loves to eat bagels to fuel up for his track meets. he typically…
The rate of change (slope) is \(1.5\) dollars per bagel. This means that for each additional bagel Bryant buys, the total cost increases by \(1.5\) dollars.
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fill in the blank question the breezy fan reported a decrease to net in…
decreased
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practice 1. the graph shows the proportions of blue paint and yellow pa…
The slope of the line is \(1\). It means that the proportion of blue paint to yellow paint is \(1:1\), i.e., for each unit of blue paint, one unit of yellow paint is used to make …
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noah and gabriel are in the same english class. they have taken 6 quizz…
Noah: Mean = 87, Median = 85.5, Mode = 85 Gabriel: Mean≈87.17, Median = 86, Mode = 86
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we seek a private house, a private means of transportation, a private g…
D. isolated or apart from other people
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7. a recent study with 60 middle school students was conducted to try t…
a. This is an experiment because the researchers assigned (manipulated) the students to different reading modes (digital or print). In an observational study, there is no such man…
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jake made these miniature golf scores: 2, 3, 2, 4, 3, 3, 3, 3, 2, 3, 4,…
range - \(7\), mode - \(3\), median - \(3\), mean - \(3.5\)
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instructions read the question carefully and select the best answer. th…
D. supporting the poem's central themes of time and eternity
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5. a marketing company wants to test out two different versions of an a…
5. D. All students from this local university who are similar to those who volunteered for the study. 6a. Explanatory variable: Time of exercise (morning or later in the day). Res…
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a data set has a maximum of 84, a minimum of 34, a median of 52.5, an u…
The box will go from \(44\) to \(64\).
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what percentage of the data values represented on a box plot falls betw…
\(25\%\)
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4. migrating sandhill cranes sometimes suffer injuries or death from po…
B. There is an association between markers and the number of powerline collisions, but not necessarily a causal relationship.
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what percentage of the data values falls between the values of 27 and 4…
75%
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what is the range of the given data? 22 42 41 28
\(42\)
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what is the value of the interquartile range of the given data?
\(14\)
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6. “maybe you should hit the hay early tonight,” said her father. “get …
C. go to sleep
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which box plot correctly displays the data set with a maximum of 48, a …
The box - plot where the left - most point is at 27, the left - end of the box is at 32, the line inside the box is at 36, the right - end of the box is at 45, and the right - mos…
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what is the range of the given data? 5 12 13 2
13
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a data set has a maximum of 200, a minimum of 115, a median of 145, an …
The right whisker will go from 150 to 200.
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the box part of the box plot contains all the values between which numb…
between 32 and 37
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read these lines from \sonnet 18\ by william shakespeare. and every fai…
explain that beauty can fade
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the number of bus riders was recorded on one route. the data have these…
The first box - plot (top - left one) represents the data as it has the minimum at \(18\), \(Q_1 = 22\), median \(=26\), \(Q_3=29\), and maximum \(=37\)
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analyzing a students statement does the data belonging to this box plot…
Yes, there are two outliers at \(5\) and \(43\).
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does the data belonging to this box plot contain any outliers? yes, the…
Yes, there are two outliers at 5 and 43.
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use the text to put the events in order. the earliest movies were silen…
1. Movies are silent and simple. 2. Chaplin becomes popular. 3. Sunrise appears. 4. The Jazz Singer appears.
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interpreting a box plot choose the set of letters that represents each …
The range of the data \(=A\) and \(E\). The top 25% of the data \(=D\) and \(E\). The interquartile range \(=B\) and \(D\).
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which box plot represents data that contains an outlier?
The second box - plot (the one with the red cross) represents data that contains an outlier.
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which box plot represents data that contains an outlier?
The third box - plot.
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finding the range what is the range? the range is
\(8\)
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suppose you know the minimum, lower quartile, median, upper quartile, a…
1. Draw and label a number line. 2. Plot the five values above the number line. 3. Draw a box from the lower quartile to the upper quartile. 4. Divide the box at the median. 5. Co…
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the five values for a data set are: minimum = 11 lower quartile = 12 me…
The box will go from \(12\) to \(27\). A line dividing the box will go at \(23.5\). The left whisker will go from \(11\) to \(12\). The right whisker will go from \(27\) to \(33\).
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interpreting a box plot what percentage of data points do the two whisk…
50%
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harlem what happens to a dream deferred? does it dry up like a raisin i…
C. It gets hard.
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finding the interquartile range which statement correctly finds the int…
\(11-6 = 5\)
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which statements are true about box plots? choose three correct answers…
They help describe sets of data. Each section of a box plot represents 25% of the data. They show the data split into four parts.
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naming parts of a box plot identify the location of the values used to …
\(B=\text{first quartile}\), \(D = \text{third quartile}\)