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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over the past three years, freddie’s car maintenance sessions cost $250…
# Explanation: ## Step1: Calculate the mean The data points are \( 250 \), \( 270 \), and \( 280 \). The mean (\(\bar{x}\)) is calculated as \(\frac{250 + 270 + 280}{3}\). \[ \bar…
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cheo paid monthly rents of $800, $820, $825, $810, and $825 over the la…
\( \$20 \)
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hugo’s health expenses for the year were: $200, $210, $220, $215, $210,…
\$10
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discussion conclusions quick check what are rhetorical strategies? (1 p…
D. statements used to convey meaning, provoke a response, or persuade readers
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having a realistic self-concept means you see yourself as you are, not …
T
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question 9 (multiple choice worth 1 points) (lc) the average grade on a…
78.5% to 86.5%
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the dj plans to spend more than $45 but no more than $75 monthly to pur…
The compound inequality is \( 100 < s \leq 200 \), meaning the number of minutes \( s \) satisfies \( 100 < s \leq 200 \).
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the dj plans to spend more than $45 but no more than $75 monthly to pur…
The compound inequality is \( 45 < 15 + 3s \leq 75 \) and the solution is \( 10 < s \leq 20 \), meaning the number of minutes \( s \) satisfies \( 10 < s \leq 20 \).
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4. write the standard number for fifteen and thirty-six hundredths (hin…
\( 15.36 \)
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patty tutors students in groups of 10. meanwhile, nellie tutors student…
70
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danielle’s sports sells golf tees in packs of 2. meanwhile, kylie’s gea…
10
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a surveyor measured the road frontage of a parcel of land and obtained …
11.45
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14. make a box-and-whisker plot for the data. what is the upper quartil…
The upper quartile value is \(52\), so the correct option is the one with \(52\) (the first option: \(52\))
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5. the list shows the ages of first-year teachers in one school system.…
23 (the option with "23")
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4. what are the lower, middle, and upper quartiles of this data? 23, 15…
lower: 14.5, middle: 15, upper: 22.5 (the first option)
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do older adults have a smaller mean hip girth in this sample? which sta…
Older adults have a smaller mean hip girth compared to younger adults.
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question 3 for which one of the following distributions will the median…
A. Salary data for players in the National Basketball Association (NBA) where most of the players earn the league minimum and a few superstars earn very high salaries in compariso…
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this histogram shows the distribution of exam scores for a class of 33 …
75
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which distribution has the smallest median? dot plots for set a, set b,…
A. Set A
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question 3 3 pts a college statistics class conducted a survey of how s…
The mean will increase, but the median will remain the same.
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below is the distribution of credit card debt for a sample of 100 ficti…
$3,525 is the mean.
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which measure of center is the best measure of a typical value for the …
Both
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for the 17 quiz scores graphed in the histogram, estimate the median. h…
between 16 and 18
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what is your estimate for the measure of center you chose? (accompanied…
Around 36 - 38 cm (a common estimate for the median or mean as a measure of center, with a more precise estimate around 36 - 38 cm based on the 25% interval divisions and the dist…
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what is your estimate for the measure of center you chose? question 3 f…
36 (or a value around 36 - 37, depending on visual estimation; 36 is a common estimate here)
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the dotplot above shows the distribution of calf measurements for 507 a…
median
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fists, forcing herself to keep moving, though her legs felt like lead. …
c. Determined ### Second Question (Maya's Determination's Revelation)
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question 2 3 pts the school committee of a small town wants to determin…
There are a total of 110 children in the town.
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17 chaque année, la mère de chloé mesure la taille de sa fille le jour …
To create a broken - line graph (diagramme à ligne brisée) from the given data, we follow these steps: ### Step 1: Prepare the coordinate system - **Horizontal axis (x - axis)**: …
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instructions read the question carefully and select the best answer. wh…
B. noun | acceptance of something undesirable or inevitable
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question 11 of 12 how can savers enjoy their savings without feeling gu…
C. By setting aside a “fun fund” for personal enjoyment.
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which of the following best describes how a theme differs from a plot? …
a. The theme explores meaning, while the plot is the sequence of events.
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17 chaque année, la mère de chloé mesure la taille de sa fille le jour …
To create a line graph (diagramme à ligne brisée) for Chloé's height over the years, follow these steps: ### Step 1: Prepare the Axes - **Horizontal (X) Axis**: Represent the year…
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circumnavigation means to choose one option a discover new land b trave…
B. travel completely around something, such as the globe
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13. which word means a fundamental truth or belief? a. principled b. pr…
d. principle
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a sample of 324 people is surveyed. the people are classified according…
0.40
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for all of the colleges in this data set there is variability in on-tim…
Two colleges with substantial differences in on - time graduation rates are College A and College D. - Observation 1: Min of A is 43.2, Min of D is 74.1 (large difference in lowes…
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the system of equations shown is solved using the linear combination me…
There are infinitely many solutions to the system because the equations represent the same line.
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you may have only a small interest in people who set records, but cherr…
A relevant clue is "You may have only a small interest in people who set records, but Cherry’s interest is keen. He is especially interested in a man named Ashrita Furman." (or "E…
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you may have only a small interest in people who set records, but cherr…
The clue that helps understand "keen" is "He is especially interested in a man named Ashrita Furman" (or "would hate to miss a chance to beat him" or the contrast with "You may ha…
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cheering. they clapped and shouted for a long time. does cherry neglect…
The clue that helps understand "neglect" is "Instead, he always works to entertain them."
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determine word meanings using context clues 2 — quiz — level c cheering…
to not notice or pay attention to
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the system of equations is solved using the linear combination method. …
A. There are no solutions to the system because the equations represent parallel lines.
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records, making fans the man in front of the crowd had set more world r…
B. to reach toward something (assuming the second option is labeled B; adjust the label based on the actual option numbering, but the text is "to reach toward something")
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determine word meanings using context clues 2 — instruction — level c a…
to add more
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as a boy, ashrita furman loved finding out about world records. he want…
Clue 1: He set an immense number of records—600 (the number 600 shows a large quantity). Clue 2: That’s easily more than anyone else (comparing to others shows the amount is large…
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the world-record champ as a boy, ashrita furman loved finding out about…
The clues that help understand "lack" are: 1. "wasn't super strong or fast" (shows he didn't have certain physical capabilities, parallel to lacking sports skills) 2. "had plenty"…
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the world-record champ as a boy, ashrita furman loved finding out about…
C. to not have something (assuming the third option is labeled C; if the options are in a different order, adjust the label, but the text is "to not have something")
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what does \purposefully\ mean in these sentences? for my report, i chos…
A. for a certain reason
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make a word that means \without a reason.\
purposeless
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make a word that means \to use again in a new way.\
repurpose (formed by combining the prefix "re" with "purpose")
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determine the meanings of related words in a word family: define and pu…
purposeful (formed by combining "purpose" and "ful")
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what does \purposely\ mean? in a way that is for a reason; without havi…
A. in a way that is for a reason
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determine the meanings of related words in a word family: define and pu…
A. a reason
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what does \predefined\ mean in these sentences? before franzi left for …
A. set before going
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what does \predefined\ mean in these sentences? before franzi left for …
A. set before going
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an institution transfers 211 prisoners to other institutions after a ma…
\( 400 \) ### Second Problem (Area Conversion)
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what does \undefined\ mean in these sentences? the rules of the new gam…
not explained
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make a word that names the thing you have when you explain the meaning …
definition
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make a word that means \to explain before doing something.\
predefine (formed by combining the prefix "pre" with "define")
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make a word that means \to explain before doing something.\ options: pr…
predefine (formed by combining the prefix "pre" with "define")
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make a word that means \to explain the meaning again.\
redefine
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what does it mean when something is \defined\? the meaning is explained…
The meaning is explained.
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i-ready determine the meanings of related words in a word family: defin…
to explain what something means
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termine word meanings using known words and suffixes -tion/-ion and -ou…
joyous
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make a word that means \the event you have when people vote for leaders…
elect + ion (forming "election")
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determine word meanings using known words and suffixes -tion/-ion and -…
B. an event when people celebrate (assuming the options are labeled A, B, C, D with the first option as A, second as B, third as C, fourth as D)
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determine word meanings using known words and suffixes -tion/-ion and -…
having a lot of courage
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what does \courageous\ mean? an action done with courage the wrong kind…
The correct option (assuming the last one is "having a lot of courage"): having a lot of courage (the option with "hav... lot of" in the image, likely "having a lot of courage")
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make a word that means \what you have after fixing a mistake.\
correct + ion (forming "correction")
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make a word that means \full of danger.\ word parts: left column (prote…
hazardous (formed by combining "hazard" and "ous")
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make a word that means \full of danger.\
dangerous
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what does \mountainous\ mean? facts about mountains parts of mountains …
having many mountains
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what does \mountainous\ mean? options: facts about mountains parts of m…
C. having many mountains (assuming the options are labeled A, B, C, D with A: facts about mountains, B: parts of mountains, C: having many mountains, D: across from mountains)
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determine word meanings using known words and... what does \collection\…
the things you have after collecting
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determine word meanings using known words and suffixes -ful and -less —…
First blank: thoughtful
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determine word meanings using known words and suffixes -ful and -less —…
D. without a cord (assuming the options are labeled A - D as: A. using a cord, B. having a cord, C. not a cord, D. without a cord)
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eduardo is crafting a communication about his sales team’s recent accom…
A. his primary audience
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determine word meanings using known words and suffixes -ful and -less —…
C. full of color (assuming the third option is labeled C; if the original labels differ, adjust the identifier but the text is "full of color")
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determine word meanings using known words and suffixes -ful and -less —…
C. full of color (assuming the third option is labeled C; if the original labels are different, adjust accordingly, but based on the options, the correct one is "full of color")
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make a word that means \without any money.\ (with word options: flavor,…
penny + less (forming "penniless")
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make a word that means \feeling very happy.\ (image shows word tiles: t…
joyful
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iready determine word meanings using known words and suffixes -ful and …
C. not doing harm (assuming the third option is labeled C; if the original options have different labels, adjust the label accordingly, but the text is "not doing harm")
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determine word meanings using known words and prefixes pre- pre- preset…
The prefix "pre - " means "before". By combining it with root words (e.g., "heat" in "preheat", "view" in "preview"), we can determine word meanings: "preheat" = heat before, "pre…
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determine word meanings using known words and prefixes pre- and mis- — …
misplace
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make a word that means \to put together the wrong way.\ (image shows tw…
miscook
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make a word that means \to act the wrong way.\
misbehave
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what does \misunderstand\ mean? to understand without help to understan…
to understand in a wrong way
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i-ready determine word meanings using known words and prefixes pre- and…
to pay before getting something
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determine word meanings using known words and prefixes pre- and mis- — …
mislead
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make a word that means \to write with the wrong letters.\
misspell (formed by combining "mis" and "spell")
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make a word that means \to warm up before using.\
preheat
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which statement best counters justice taney’s argument regarding the dr…
C. Being born in the United States makes you a citizen of the United States.
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determine word meanings using known words and prefixes pre- and mis- — …
D. to use in a wrong way (assuming the last option is labeled D; if labels are different, adjust the label but keep the text "to use in a wrong way")
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what does \pretest\ mean? a test with many different parts a test at th…
a test to take before learning
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you can see the oozing mushroom. just go to the woods where it lives. i…
to move in a certain direction
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i-ready determine word meanings using context clues 1 — quiz — level c …
The clue is "time" (from the sentence "After that time" in the passage, as it is used to refer to the same stage of the mushroom's life as "period").
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bloody pulled tooth! this mushroom lives in countries around the world.…
The clue is "They want to know the reason for the red stuff" (from the context where scientists' action of wanting to know the reason for the red liquid connects to "get a sense o…
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iready bloody pulled tooth! this mushroom lives in countries around the…
D. an understanding of something (assuming the last option is D; if options are labeled differently, adjust the label but keep the text: "an understanding of something")
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the bleeding tooth fungus in forests of old trees, you may spot a stran…
The clue is the word "kind" (from "a strange kind of mushroom") as it relates to "a certain type or sort", helping understand "form" means a type of mushroom.