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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read the excerpt from julius caesar, act 2, scene 1. brutus. it must be…
The warm praise of the people can cause Caesar to be more powerful and dangerous.
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match each scatterplot shown below with one of the four specified corre…
To solve this, we analyze the direction and strength of the linear relationship in each scatterplot: ### First Scatterplot (Top - Most Random) - The points are very scattered with…
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the box-and-whisker plot below represents some data set. what is the mi…
84
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score on last try: 0 of 1 pts. see details for more. at least one score…
Fraction: \(\frac{6}{61}\) (or if there was a miscalculation, but based on the given graph, this is correct), Percentage: \(10\%\) (rounded to nearest whole percent)
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click to read the passage from \the metamorphosis,\ by franz kafka. the…
C. Everyday details of the room are described in the same tone as the description of the character.
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score on last try: 0 of 1 pts. see details for more. at least one score…
18 ### Second Sub - Question: How many students earned a passing grade of C or higher on their paper?
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the salaries of the employees at four companies are summarized below. a…
Company D ### Part (b)
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calculate the standard deviation and variance of the sample quantitativ…
Standard deviation: $9.22$ Variance: $85.10$
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match each graph on the left with an interval where the function is con…
To solve this problem, we analyze each graph to identify the interval where the function is constant (horizontal line segment, meaning the \( y \)-value doesn't change as \( x \) …
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suppose you made 5 measures of your walking stride and got the followin…
\(0.76\)
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determine whether the graph shows a positive correlation, a negative co…
The graph shows no correlation. This means that as the years progress (from 1990 to 2000), there is no consistent upward or downward trend in the United States birth rate (per 100…
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the scatter plot shows the study time and test scores for the students …
c. 82
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each dot plot below represents a different set of data. order the data …
1. First dot plot (clustered at 0, 20, one middle) 2. Third dot plot (clustered at 0, 20, three middle) 3. Second dot plot (clustered at middle, one at ends)
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the accompanying data are 45 commute times to work in minutes for worke…
To construct the frequency distribution, we first need the actual commute time data (which is referenced as "Click the icon to view the commute times" but not provided here). Howe…
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the dot plot below represents how long it takes students in an 8th grad…
21
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question the box plot below represents some data set. what is the range…
55
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the graph below represents the number of goals scored by the boys socce…
0
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the table below shows the frequency distribution of the rainfall on 52 …
A. (with the histogram having a tall bar at \(0 - 0.19\), then shorter bars for subsequent classes and very short bars for the highest - rainfall classes)
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the table below shows the scores on a math test. david\t75\taaron\t75 a…
b. 12.5
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question 15 what drives the production and distribution of goods and se…
C. the profit motive, economic competition, and supply and demand
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given the equation ( ax + b = c ), solve for ( x ). describe each state…
for the equation: \( x = \frac{c - b}{a} \) (for \( a eq 0 \))
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given the equation ax + b = c, solve for x. describe each statement in …
\( x = \frac{c - b}{a} \) (for \( a eq 0 \)) ### Part b: Analyze the statement about integers \( a, b, c \) and integer \( x \)
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given the equation ax + b = c, solve for x. describe each statement in …
D. The statement is sometimes true because the solution could also be a fraction or a negative number.
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wrhs mathematics of personal finance t1 income data creating a pie grap…
The third pie graph (third from the top)
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recall that when making a frequency table, the class limits are written…
First class: 30 - 45 Second class: 46 - 61 Third class: 62 - 77 Fourth class: 78 - 93 Fifth class: 94 - 109 Sixth class: 110 - 125 Seventh class: 125 - 141
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whhs mathematics of personal finance t1 income data finding the median …
\$2,100
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a group of high school students worked part - time jobs over the summer…
$\$150$
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now that all of the lower class limits have been determined, we can fin…
The missing value in the first equation is 46. The upper class limit of the second class is 61, the fourth class is 93, and the sixth class is 125.
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now, determine the class limits for a frequency table with seven classe…
First blank (add to 30): 16 Second class lower limit: 46 Fourth class lower limit: 78 Sixth class lower limit: 110
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a group of high school students worked part - time jobs over the summer…
\$150 (corresponding to the option with text "\$150")
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step 1 so far our calculations have indicated a class width of 15.29. h…
Rounding 15.29 up to the nearest whole number gives us \(\boldsymbol{16}\). Therefore, the class width is \(\boldsymbol{16}\).
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step 1 first, find the class width for a frequency table with 7 classes…
First blank: 30; Second blank: 107; Third blank: 15.29
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which short constructed response best answers the following question: w…
The coaches make Boobie sit on the side because he is hurt, so he can’t really play, and this makes him feel bad. The book says the coaches didn’t want to put him in the game beca…
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medical marijuana 2015 sales tax: the data show the amount of sales tax…
First quartile \( Q_1 = 349848 \), Third quartile \( Q_3 = 506979 \)
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the following side-by-side bar graph presents the percentages of source…
### Part (a) To determine which sources increased or decreased, we analyze the bar heights for 1940 (blue) and 2012 (white): - **Parent - Teacher Associations**: The blue bar (194…
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science summer assignments 2025-2026 cost of a book of postage stamps (…
$\$3.75$ (or if the graph is interpreted as having a cost of $3.5$ or $3.75$, but likely $3.75$) ### 2) In which year was the cost of a book of postage stamps $\$6$?
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part 1 of 2 draw the percentile graph using class boundaries for the x …
- 8th: \(\boldsymbol{377}\) (or 380 depending on graph interpretation) - 21st: \(\boldsymbol{400}\) (or 399) - 27th: \(\boldsymbol{413}\) - 52nd: \(\boldsymbol{479}\) - 97th: \(\b…
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31 minutes question 8 of 13 (point) | question attempt 2 of unlimited p…
### Part (a) To determine which sources increased or decreased as a proportion of the total, we analyze the bar graph (visually, the heights relative to total). - **Increased**: I…
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part 2 of 2 find the approximate values that corresponds to the given p…
387
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open-ended total consumption of fruit juice in a particular country in …
3.5
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question 2 of 16 (6 points) | question attempt: 1 of 1 cumulative perce…
Since the problem (presumably related to analyzing the cumulative percentage graph, like finding the interquartile range or percentiles) isn't fully stated, but assuming we need t…
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airplane speeds the airborne speeds in miles per hour of 21 planes are …
To create a percentile (ogive) graph, we first need to find the cumulative frequency and then the cumulative percentage for each class boundary. Here are the steps: ### Step 1: De…
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select all that apply. to describe the direction of an association, say…
- a positive association - a negative association
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select all that apply. to describe the direction of an association, say…
C. a positive association, E. a negative association
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17 horizontal analysis: 2.5 points 00:53:39 ebook multiple choice is a …
A. Is a method used to evaluate changes in financial data across time.
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what is the meaning of the word immaterial as used in the passage? \you…
of no consequence
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given the equation ( ax + b = c ), solve for ( x ). describe each state…
A. The statement is always true. The solution for \( x \) is an expression involving addition, subtraction, multiplication, and/or division, and these operations always give ratio…
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what is the meaning of the word intermittent as used in the passage? th…
starting and stopping repeatedly
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given the equation ax + b = c, solve for x. describe each statement in …
\( x = \frac{c - b}{a} \) (for \( a eq0 \)) ### Part a: Analyze the statement
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given the equation ( ax + b = c ), solve for ( x ). describe each state…
C. The statement is sometimes true because the solution could also be a fraction or a negative number.
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intracompany standards for financial statement analysis: multiple choic…
A. Are based on a company's prior performance and its relations between financial items.
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the theoretical probability of an event is the number of ways an event …
\(\frac{1}{13}\) ### Second Sub - Question (Experimental Probability of Landing on Heads)
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whs mathematics of personal finance 1 income data calculating measures …
s: - Mean: \( \approx 401.83 \) - Median: \( 377 \) - Mode: \( 330 \)
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whs mathematics of personal finance t1 income data calculating measures…
\( \approx 401.83 \) ### 2. Median Calculation
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ate your own argument that displays the same fallacy ind fallacy has th…
B. You want to order a pizza for dinner, but your roommate does not want to order a pizza. Therefore, you should order half of a pizza.
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a box contains different-colored marbles. if ( p(\text{blue}) = \frac{1…
The events are dependent because \( P(\text{blue}) \cdot P(\text{green}) eq P(\text{blue and green}) \) (the third option: The events are dependent because \( P(\text{blue}) \cd…
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the service center for a brokerage company provides three functions to …
0.7445
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which is a pair of independent events? ○ choosing one calendar date for…
choosing one card from a deck and then choosing one card from another deck
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two events, a and b, are independent of each other. ( p(a)=\frac{1}{6} …
0.75
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halla el promedio de los siguientes números: 56; 56; 49; 49; 20 oprime …
46
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halla el promedio de los siguientes números: 56; 56; 49; 49; 20 oprime …
46
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7) el promedio de 2, 5, 9 y 12 es 6. a) cierto b) falso
b) Falso
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reading a bar chart summer reading competition each student in a class …
15, 12, 9, 3, 6 (in the order of least to greatest frequency of number of books read)
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marco has a bag of red, blue, and green tiles. which set of events woul…
A. A tile is drawn and replaced, and then a second tile is drawn.
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multi-meaning word: ring write 2 dictionary definitions for the mmw. in…
### Dictionary Definitions: 1. **Definition 1**: A circular band, typically of metal, worn as jewelry on a finger. a. Part of speech: Noun 2. **Definition 2**: (Of a bell or simil…
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the theoretical probability of a couple having a baby girl is \\(\\frac…
\(\frac{1}{8}\) (corresponding to the option \(\frac{1}{8}\))
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leona has a bag containing lettered tiles. which describes dependent ev…
A. removing a vowel, not replacing it, and then removing another vowel
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events a and b are independent. the probability of a occurring is \\(\\…
\( \frac{1}{10} \) (corresponding to the first option)
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read the following passage from the war of the worlds by h.g. wells: th…
D. It would have seemed more authoritative.
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a spinner has 4 equal-sized sections labeled a, b, c, and d. it is spun…
\(\frac{1}{8}\) (corresponding to the first option)
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here are three histograms. (a) which histogram is the closest to being …
Histogram A ### (b)
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reyesburg corporation is contemplating using a new glue in the construc…
The ogive is drawn by plotting cumulative frequencies (4, 9, 18, 22, 25, 25) at carrying loads 860, 880, 900, 920, 940, 960 respectively and connecting them.
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10 what percentage of students missed 3 or fewer days during the summer…
80.5% (corresponding to the option with 80.5%)
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the moon illusion refers, roughly speaking, to the common experience th…
To draw the ogive: 1. **Upper Class Boundaries**: 0, 0.2, 0.4, 0.6, 0.8, 1.0 2. **Cumulative Relative Frequencies**: 0, \( \frac{3}{25}=0.12 \), \( \frac{9}{25}=0.36 \), \( \frac{…
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frequency tables and graphs end of lesson test 9 how many trees were 55…
3
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students at a major university in southern california are complaining a…
The ogive is drawn by plotting points (0, 0.00), (4, 0.26), (8, 0.52), (12, 0.70), (16, 0.84), (20, 0.95), (24, 1.00) and connecting them.
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8 what percentage of patients have no condition associated with hyperte…
34%
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for an in-class demonstration, a teacher flips a fair coin 5 times, and…
The student is not correct. Each coin flip is an independent event, and for a fair coin, the probability of landing on heads or tails on any single flip is always $\frac{1}{2}$, r…
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complete the frequency table for the following set of data. you may opt…
| Interval | Tally | Frequency | |----------|-------|-----------| | 0 - 1 | |||| | 4 | | 2 - 3 | |||||| | 6 | | 4 - 5 | ||| | 3 | | 6 - 7 | | 0 | | 8 - 9 | ||||| | 7 | (Note: Tall…
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weight away, a company that sells weight-loss plans, often advertises t…
To draw the ogive: 1. **Calculate cumulative frequencies**: - Before -10: \( 0 \) - At -10: \( 6 \) - At 0: \( 6 + 7 = 13 \) - At 10: \( 13 + 12 = 25 \) - At 20: \( 25 + 10 = 35 \…
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mean girls directions: below is a list of all of the terms covered in t…
To complete the task, pick 20 terms (e.g., conformity, stereotype, cognitive dissonance) and explain their application. For "conformity": Cady conforms to the Plastics' fashion an…
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name hour \mean girls\ directions: below is a list of all of the terms …
For "conformity": Cady Heron conforms to the "Plastics" group's behaviors (e.g., wearing pink on Wednesdays) to gain acceptance, illustrating how people adjust actions to align wi…
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frequency tables and graphs end of lesson test 7 how many workers earne…
10
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tables and graphs end of lesson test 6 what percentage of people weighe…
9%
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5 a frequency table with frequency distribution and absolute frequency …
True
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consider a situation in which ( p(a) = \frac{1}{8} ), ( p(c) = \frac{1}…
Not enough information is provided to determine \( P(B \text{ and } C) \).
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4 what is the relative frequency of ticket prices between $200-249? fre…
0.07
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a bag contains a variety of different - colored marbles. if $p(\\text{r…
The events are independent because \( P(\text{red}) \cdot P(\text{green}) = P(\text{red and green}) \). (The first option)
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3 what do bars on a histogram indicate? the range in the difference of …
Frequency or relative frequency of the data in the category
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andrea rolls a number cube twice. she determines ( p(\text{even, then o…
- Andrea’s solution is incorrect. - The probability of each simple event is \(\frac{1}{2}\). - The probability of the compound event is less than the probability of either event o…
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2 which of the following describes the composition of a frequency table…
Must include at least 2 columns but can include up to 4 columns
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use the empirical rule ague baseball players batting averages of ned cl…
(a) The proportion of observations with \(z < - 2.46\) is approximately \(0.0069\). (b) The proportion of observations with \(0.89 < z < 2.46\) is approximately \(0.1798\).
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meeting the spending targets in this budget meant some very difficult c…
B. deciding what would be funded and what would be cut
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a survey of autos parked in student and staff lots at a large universit…
| Origin | Student (%) | Staff (%) | |----------|-------------|-----------| | American | 55.0 | 63.1 | | European | 16.2 | 7.7 | | Asian | 28.8 | 29.2 |
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a survey of autos parked in student and staff lots at a large universit…
| Origin | Marginal | |----------|----------| | American | 58.8% | | European | 12.3% | | Asian | 28.9% |
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a survey of autos parked in student and staff lots at a large universit…
55.0%
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a survey of autos parked in student and staff lots at a large universit…
\( 49.8\% \)
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a survey of autos parked in student and staff lots at a large universit…
\(41.2\)
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the following table shows results of a poll asking adults whether they …
A. 516
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read the sentence from \growing change.\ \if you grow together, you gro…
C. He believes gardening brings people together and benefits everyone.