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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deltamath linear equations w/ distribution (lev 3) score: 0/4 penalty: …
$x =-\frac{13}{2}$
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8. how does the conversation between jacob and his mother in paragraphs…
8. d. it provides a sense of uncertainty and tension 9. b. it adds to the sense of vulnerability and fear 10. b. clear
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copacabana beach in rio de janeiro is one of the most popular beaches i…
A. There were \(N\) people at the beach at 10:00 a.m.
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4. what does the author want the reader to recognize through the use of…
4. d. the sense of powerlessness 5. a. his uncertainty about who he was conversing with 6. d. removed 7. b. ungroomed
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baby amelias parents measure her height every month. h(t) models amelia…
B. When Amelia was 30 months old, she was 5 centimeters taller than when she was 25 months old.
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aria walked down a trail into a valley. v(d) models arias vertical dist…
A. When Aria had walked 3 km along the trail, her vertical distance from the top of the valley was less than 3 km.
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\princess tower\ in dubai is considered the worlds tallest residential …
B. There are more tenants on floor 60 than there are tenants on floors 10 and 30 combined.
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french and english leaders noticed how wealthy the spanish empire was b…
France and England realized that it was possible to reach Asia by going around or through the Americas.
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general purpose for the statistical methods in each category. we know t…
a. statistic b. parameter
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a number cube is rolled three times. an outcome is represented by a str…
| Event | Outcomes | Probability | | ---- | ---- | ---- | | Event A | OOE, OEO, EOO, OOO | $\frac{1}{2}$ | | Event B | EEO, EEE | $\frac{1}{4}$ | | Event C | EEO, EOE, EOO, EEE, O…
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which association best describes the relationship in the scatter plot?
No association
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an animal sanctuary houses a variety of animals. to understand the work…
(a) 1 (b) 2 (c) Cats, Otters
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10. list the four dot plots in order of variability from least to great…
B, C, A, D
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the annual profits for a company are given in the following table, wher…
Regression Equation: \(y = 20.5x+142\) Final Answer: 327 thousand dollars
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which question is a statistical question? does the president of the uni…
How many pounds does a bald eagle weigh?
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an animal sanctuary houses a variety of animals. to understand the work…
(a) Dr. Jackson (b) 6 (c) Frogs, Goats, Zebras
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15. the mean a of two numbers, x and y, is given by a = $\frac{x + y}{2…
$y = 2A - x$
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d). if the outliers are removed, which would be more likely to change s…
The mean would be more likely to change significantly. The standard deviation would be more likely to change significantly compared to the inter - quartile range. Reason: The mean…
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c). hakim suggests removing the outliers from each data set because the…
It may not be the right action. The decision to remove outliers should be based on whether they are due to errors or are genuine but extreme data points.
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which prefix means \small\? sub- pre- micro- macro-
C. micro-
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the central message or underlying meaning that runs throughout a story …
1. Theme 2. Setting 3. Plot 4. Character 5. Point of view 6. Motivation 7. Symbolism
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which prefix means \large\? post- macro- micro- inter-
B. macro-
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which prefix is not matched correctly to its meaning? eu: good, normal,…
C. Hyper: deficient, decreased
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which prefix means \out of, outside, away from\? in- ex- intra- super-
B. ex-
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what measure of center are appropriate to use and why? what measure of …
Measures of center: Mean (if data is symmetric and no outliers), Median (if there are outliers). Measures of variability: Range (simple but less informative), Variance and Standar…
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question #eight give the data set 29 38 49 50 53 54 55 60 65 67 68 68. …
a) $\Sigma x^{2}=36498$ b) $s^{2}\approx57.88$ c) $s\approx7.61$
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which prefix means \bad, painful, difficult\? eu- post- hypo- dys-
D. dys-
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1. which word tells a reader most about the text while previewing it? a…
1. D. puppy 2. A. Nick's parents think that he is not capable of taking care of a puppy 3. D. does work without being paid 4. D. able to 5. A. do not understand
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a pet store surveyed 133 people to see how many own a cat and how many …
(a) 71 people (b) 116 people (c) 36 people
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the following is a scatter plot of the heights and weights of the stude…
d. About 185 pounds; positive correlation
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multiple - choice question based on the information, what do you think …
Immigrants were allowed to set foot on American soil.
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what does the root cand mean in the word candescent? the candescent qua…
B. glowing
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each data set contains one outlier. what are the values of the two outl…
The two outliers are 10 and 70. The value 10 in the first 9th grade data set is much lower than the rest of the data values which cluster around 50 - 100. The value 70 in the seco…
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the latin root tactus is part of the word tangent. what does the word t…
D. touching
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question 5. when you gather information about the meaning of a work of …
Interpretation
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determine whether the graph shows a positive correlation, a negative co…
No correlation.
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1. create a histogram using the male data. 2. using only the histograms…
2a. Cannot be determined without the histogram. 2b. Cannot be determined without the histogram. 2c. Cannot be determined without the histogram. 2d. Cannot be determined without th…
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what meaning do the prefix meta - and the root morph convey in the word…
a complete change from the original
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on a scatter plot, what does it mean when both variables are increasing…
A. positive correlation
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what does the root ratio mean in the word rationalize? advocates of the…
Reason or rational thought.
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what does the suffix -ine mean in the word harlot? the silent movie her…
female
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which suffix means \pertaining to\? -ical -esis -us -um
A. -ical
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use the shape of the distribution to compare the mean and median. are t…
The mean and median are not equal. In a right - skewed distribution (as the given histogram appears to be), the mean is greater than the median because the mean is influenced by t…
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years since 2005, and y represents the profit in thousands of dollars. …
Regression Equation: \(y = 10.00x+88.00\) Final Answer: 198
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question 3 3 / 8 read this passage from the article: all kidding aside,…
B. to cancel out
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the dot - plot shows 9 scores on a 10 - question quiz for two students.…
A. Destiny’s scores have greater variability than Yunier’s scores.
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which suffix does not mean \abnormal condition or disease\? -ion -iasis…
A. -ion
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73 \the x - files: algebra adventures\ is a fictitious take on the clas…
No, this is not valid since the trend does not continue past \(t = 14.5\).
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thursday the mouse & the weasel aesop adaptation a little hungry mouse …
- What is the central message of the passage? A. Being greedy will have consequences - What happened after the mouse ate all he could? B. the mouse grew big in the middle from eat…
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select the graph with the greatest standard deviation and explain how y…
Graph b has the greatest standard deviation because its data points are more spread out from the center of the distribution compared to graph a.
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what does a slope of zero mean on a line graph? * c) the line is horizo…
1. C) The line is horizontal and there is no change 2. A) Rate of change is the same as the slope 3. B) How fast the dependent variable changes compared to the independent variable
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healthcare attempt in the 1990s, bill clinton tried to pass a nationwid…
C. Labor was cheaper in Mexico.
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read the excerpt from part one of trifles. county attorney (with the ga…
It characterizes the County Attorney as someone desirous of showing respect to women, even if he does not mean it.
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a digital camera was used to photograph the moons orbit. the photos wer…
This model cannot be used for this prediction since the model is moderately correlated, and the angular size at 133 degrees would be considered an extreme extrapolation.
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match the bolded words from the passage with their meanings: 1. tucked …
1. b. Placed or hidden away 2. d. Light, fine, or sensitive in quality 3. a. Easily broken or damaged 4. e. Very interested or attracted to something 5. c. Breathes in suddenly fr…
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part b: vocabulary in context match the bolded words from the passage w…
1. b. Placed or hidden away 2. d. Light, fine, or sensitive in quality 3. a. Easily broken or damaged 4. e. Very interested or attracted to something 5. c. Breathes in suddenly fr…
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at a popular three - day sci - fi convention, the event organizers have…
No. Even though this function provides a strong model for the data, h=10 is too far from the known data values and would be considered an extreme extrapolation.
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determine whether the graph shows a positive correlation, a negative co…
No correlation
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1. suppose a professor is interested in discovering if there is any rel…
2. B. Average homework scores, C. Times ate 3. The professor is not a variable. The student is a categorical variable. Times ate is a quantitative integer variable. Average homewo…
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the following combining form means red. cyan/o melan/o erythr/o leuk/o
C. erythr/o
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multiple choice 5 points which best describes spiritual wellness? parti…
possession of a set of beliefs that give meaning to life
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read the excerpt from part one of trifles. hale. well, she looked queer…
B. strange
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eight people of various ages were polled and asked to estimate the numb…
The $x$-axis is labeled "Age", the $y$-axis is labeled "Number of CDs", and the ordered pairs are $(18,12),(20,17),(24,10),(25,6),(28,4),(30,4),(32,2),(34,3)$.
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question 4 of 5 select the correct answer from each drop - down menu. d…
The total points earned depends on the number of correct answers.
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read this excerpt from the passage: 14 thereafter madame loisel knew th…
D. The author slows down the pace to build tension as readers learn how Madame Loisel's life changed after she lost the necklace.
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read the excerpt from part two of trifles. county attorney. oh, i guess…
C. It is situational irony because the County Attorney has actually issued a relevant warning to Mrs. Peters without realizing it.
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determine whether the graph shows a positive correlation, a negative co…
Positive correlation. The meaning is that over the years from 1991 - 2001, the sales of sport - utility vehicles in the U.S. have been increasing.
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read this excerpt from the passage. 26 \oh, my poor mathilde! how you a…
A. The author slows down the pace to build tension between the two women as they discuss the lost necklace.
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determine whether the graph shows a positive correlation, a negative co…
Positive correlation. It means that over the years from 1950 - 2002, the Consumer - Price Index has been rising, indicating inflation or an increase in the general level of prices…
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homers epic poem the odyssey is about a great warrior, odysseus, who tr…
C. Atwood tells the story of The Odyssey from a woman's perspective, making the original story of Odysseus and Penelope more complete.
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context for the war . vietnam, located in southeast asia, used to be a …
A. Asia
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homers epic poem the odyssey is about a great warrior, odysseus, who tr…
C. Atwood tells the story of The Odyssey from a woman's perspective, making the original story of Odysseus and Penelope more complete.
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determine whether the graph shows a positive correlation, a negative co…
No correlation
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select the correct answer. read this excerpt from the passage: 15 she c…
A. The author uses description and complex sentences.
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interpreting pie graphs the pie graph shows which language classes stud…
1. Spanish 2. $\frac{1}{3}$ 3. $\frac{1}{3}$ 4. No 5. 40 6. Spanish, Mandarin
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read this excerpt from the passage. 14 thereafter madame loisel knew th…
B. The author slows down the pace to build tension as readers learn how Madame Loisel's life changed after she lost the necklace.
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what did thomas paine mean when he said, these are the times that try m…
The Patriots need to make a long - term commitment to fight.
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interpreting line plot graphs kathy recorded the amount of flour she us…
1. 4 times 2. 2 cups 3. 2 times 4. 8 times 5. 7 times 6. 5 times 7. 20 cups 8. 24 batches
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kennedys response in response to the governors violation of the brown v…
B. Brown v. Board of Education
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the table shows the number of tickets sold for a concert when different…
$y=-6.2x + 548.8$
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4 (modern connections) tupac often talked about doing whatever it takes…
Tupac's view aligns with Machiavelli's in that both prioritize the end (protection of self/community) over the means, suggesting that extreme actions may be necessary to achieve i…
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question 9 of 10 which best describes the meaning of the term theorem? …
C. A conclusion proved by deductive reasoning
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question four a survey was given to a random sample of 20 sophomore col…
(a) $Q1 = 8$, $Q2=10$, $Q3 = 13$ (b) $IQR = 5$ (c) $(0,8,10,13,25)$ (d) Draw a box from 8 to 13 with a vertical line at 10 and whiskers to 0 and 25 on a number - line from 0 to 25.
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determine whether the graph shows a positive correlation, a negative co…
Positive correlation. As time increases, more people are entering the amusement park.
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yes ; each input value is assigned to exactly one output value. c. what…
You can only make 0 or more servings, and the number of servings must be a whole number since you can only use a whole number of ingredients to make servings.
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part b b. is the relation a function? explain. yes ; each input value i…
b. Yes; each input value is assigned to exactly one output value. c. all whole numbers greater than or equal to 0; number of servings must be a non - negative whole number.
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the scatter plot shows the study time and test scores for the students …
c. 82
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part b b. is the relation a function? explain. yes ; each input value i…
b. Yes; each input value is assigned to exactly one output value. c. The domain is the set of non - negative integers. You can only make non - negative integer servings, and the n…
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question four a survey was given to a random sample of 20 sophomore col…
(a) $Q1 = 8$, $Q2=10$, $Q3 = 13$ (b) $IQR = 5$ (c) $(0,8,10,13,25)$ (d) Draw a box with ends at Q1 and Q3, a line in the box at Q2, whiskers to non - outlier min and max, and mark…
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question 9 of 10 which best describes the meaning of the statement \if …
B. If A is true, then B must be true.
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(skill/dok 2) why would machiavelli think results are more important th…
Machiavelli was focused on political success and stability. He thought that the end goal of a powerful and stable state justified any means necessary, prioritizing results over mo…
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harper asked the juniors and seniors at her school whether the drama cl…
0.57
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based on part two of trifles, the symbolism of the dead bird implies th…
had an oppressive demeanor that killed the bird and his wife's spirit.
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suppose you were to create a scatter plot of the data for speed and dis…
C. positive relationship; as the speed increases, the distance increases.
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33 the number of students visiting live instructor support since the op…
The function's minimum is approximately 4 at \(x = 8\). It implies that Live Instructor Support has a minimum number of 4 students, which happens 8 hours since it opens.
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read the excerpt from part two of trifles. county attorney (facetiously…
D. It appeared as though Mrs. Hale was answering the question, but she actually meant something quite different with her response.
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use the graph to write an equation of the line. y = interpret the slope…
$y=-0.9x + 90$; None of the given options for slope - interpretation are correct as the slope is $-0.9$ which means the fuel decreases 0.9 gallons for every mile driven.
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paying attention to the ______ of words often leads to deep processing.…
B. meaning
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how can presenters best address two sides of an issue? by including sta…
by including a claim and counterclaim
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the scatter plot shows the study time and test scores for the students …
No tables other than Table A are provided, so if Table A has data points that accurately correspond to the scatter - plot points (by matching study times and their respective test…