統計與機率
資料分析、機率分佈、假設檢定與統計方法。
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c5 - center of mass and moments: problem 1 (4 points) results for this …
\(M_x = 16\), \(M_y = 1\), \(x=\frac{1}{21}\), \(y = \frac{1}{7}\)
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assume a population of 44, 48, 50, and 55. assume that samples of size …
Sample Median: \(49\), \(50\), \(51.5\), \(52.5\), \(55\) Probability: \(\frac{1}{8}\), \(\frac{1}{16}\), \(\frac{1}{8}\), \(\frac{1}{8}\), \(\frac{1}{16}\)
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c5 - center of mass and moments: problem 1 (4 points) the following mas…
\(M_x = 16\), \(M_y=1\), \(x\) - coordinate of the center of mass \(\overline{x}=\frac{1}{21}\), \(y\) - coordinate of the center of mass \(\overline{y}=\frac{16}{21}\)
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8. sarah goes to a particular café every day for several months and not…
D. \(0.696\)
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7. for two independent events, f and g, it is known that ( p(f)=0.8 ) a…
D. \(P(F\ or\ G)=0.86\)
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6 a nonprofit foundation is hosting a pi day pi k running race. after t…
Approximately \(42\%\)
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the year teresa graduated college, she got a job as an entry - level so…
\(-1.82\)
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keiko and her family are relocating to los angeles. they purchased a ho…
\(z = 2.28\)
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after this years census of its members, the local pilots association fo…
\(-0.34\)
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ann runs a large animal shelter. at anns shelter, the length of stay fo…
\(z = 1.89\)
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according to the theory of edwin sutherland on differential association…
Being a part of a family where parents have a criminal background and behavior.
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according to mertons strain theory, if a person rejects the cultural go…
A rebel
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according to mertons strain theory, if a person rejects the cultural go…
C. A rebel
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5. joel often flies with united airlines from grand rapids, michigan to…
a. The departure times are not independent. Because \(P(B|A)=0.34 eq P(B) = 0.22\) b. The probability that at least one of his two flights is delayed is \(0.3916\) c. The probabi…
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24w - n(w) = 933.2 24x - y = 933.2 y = 24x - 933.2 n(w) = 24w - 933.2 (…
84 For part (g), using the slope - intercept form \( y = mx + b\) (here \(N(w)=24w - 933.2\) where \(m = 24\) is the slope). The slope \(m=\frac{\Delta y}{\Delta x}\) (in our case…
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according to mertons strain theory, if a person accepts the cultural go…
B. An innovator
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review the excerpt from the code book. cryptanalysts realize that their…
mysterious
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the following data represent the weight (in grams) of a box of raisins …
\(N = 24w-933.2\)
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9. a restaurant keeps track of the number of gallons of orange juice it…
- Part A: Plot \(x\)'s at \(2\frac{1}{2}\), \(\frac{3}{4}\), and \(2\frac{5}{8}\) on the line - plot. - Part B: C. \(2\frac{5}{8}\) gallons - Part C: C. \(2\frac{5}{8}\) gallons
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according to survey results from the pew research center, 30% of people…
a. The events “Made a New Year’s resolution” and “18 - 29 years old” are not independent. Because \(P(A\cap B)=0.079 eq P(A)\times P(B)=0.048\) b. A person between the ages of 18…
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the scatter plot shows the relationship between the number of items per…
The data shows a positive association.
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3. on a january day in michigan, the weather channel predicts that ther…
b. The probability that there is a snow day tomorrow is \(0.479\). c. If there was a snow day, the probability that there were snow accumulations of at least 12 inches is approxim…
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lee quinones a brief history of graffiti art read paragraph 5 from \a b…
The first dropdown: communities The second dropdown: as well as a means of
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question 7 (8 points) directions: fill in the blank identify whether th…
1. CC (coordinating conjunction) 2. CA (conjunctive adverb) 3. SC (subordinating conjunction) 4. CC (coordinating conjunction) 5. CA (conjunctive adverb) 6. SC (subordinating conj…
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(a) draw a scatter plot of the data. (b) find the equation of the line,…
The equation of the line in slope - intercept form is \(y = 0.2x + 0.9\).
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3. on a january day in michigan, the weather channel predicts that ther…
b. The probability that there is a snow day tomorrow is \(0.479\) c. If there was a snow day, the probability that there were snow accumulations of at least 12 inches is approxima…
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practice b combining sentences using independent and subordinate clause…
1. Although the tree was hit by lightning, it survived. 2. Although the boy was loud, he did not mean to be rude. 3. She had fun at her birthday party, and her parents hired a clo…
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question 6 (5 points) match each coordinating conjunction with its main…
- **Question 6**: 1. a 2. f 3. e 4. c 5. d - **Question 7**: d. yet - **Question 8**: a. independent clauses
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4) 18, 19, 11 mean = 5. sydney earned 91, 93, 93, 94, and 96 points on …
## 4)
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according to a study done by nick wilson of otago university wellington…
\(0.1459\)
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name denasia cross period date algebra 3, 2, applied math, and business…
1. D. \(5\frac{1}{3}\) 2. D. \(20.7\) 3. B. \(52\)
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(a) lena works at a water park. she notices that the daily high tempera…
- (a) Independent variable: Daily high temperature in \(^{\circ}C\); Dependent variable: Daily number of tickets sold - (b) Independent variable: Price per knife (cents); Dependen…
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4. several factors are involved in the creation of a confidence interva…
b) True, c) True, e) True, f) True, g) True, h) True
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arlo performs an experiment for his physical science class and finds th…
- 8.2%
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a farm equipment company kept a record of the number of tractors made e…
\(68\)
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read the passage from sugar changed the world. the end of slavery was a…
Gladstone asked the shipping company to provide workers.
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some friends played a trivia game and recorded their scores. trivia gam…
\(65.83\)
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read the passage from sugar changed the world. no one interviewed the a…
"They were not just labor, not just bodies born to work and die."
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24. show work . the table below shows the number of cars jing sold each…
24. J. \(20.5\) 25. Perimeter: \(24\) inches, Area: \(36\) square inches
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some farmers compared how many tractors they own. what is the range of …
\(7\)
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kamal kept a log of how many pages he read each month. pages read septe…
\(80\)
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read the passage and study the image from sugar changed the world. the …
The illustration shows what a Great House looked like from the outside, while the text explains what a Great House looked like from the inside.
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the art club examined how many cookies each student baked for the bake …
\(90\)
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question 1 (1 point) the word \because\ is a coordinating conjunction. …
- Question 1: False - Question 2: True - Question 3: - 1. f - 2. e - 3. g - 4. d - 5. h
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3. in a poll taken in march of 2007, gallup asked 1006 national adults …
a) The margin of error for the \(90\%\) confidence level is approximately \(0.0249\) (or \(2.49\%\)). b) We are \(90\%\) confident that the true proportion of national adults who …
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supportive and encouraging, but jillian knew that in her mind she was a…
A. the pain she feels in her broken arm
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supportive and encouraging, but jillian knew that in her mind she was a…
C. She quickly created a chart, jotting notes about each of her teammates' passes, points, free throws, fouls, and so on in the blocks.
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2. a national health organization warns that 30% of the middle school s…
a) The proportion of the sample that reported having been drunk is approximately $0.191$. b) No, a single - sample proportion does not account for sampling variability. We need to…
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the average of a list of 4 numbers is 92.0. a new list of 4 numbers has…
G. 92.0
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1. the paralyzed veterans of america is a philanthropic organization th…
a) The 95% confidence interval is $(0.0465, 0.0491)$. b) Since $0.05$ is not within the confidence interval $(0.0465, 0.0491)$, the percentage of 5% is not plausible.
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disposition, so that this persecution does not arise from him. i really…
C. "I will not bias your mind by suggesting theories or suspicions, Watson," said he; "I wish you simply to report facts in the fullest possible manner to me, and you can leave me…
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13) an analyst, using a random sample of n = 500 families, obtained a 9…
B. Wider and would involve a smaller risk of being incorrect
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the cafeteria workers made the food for the occasion, and a large group…
B. Although Coach sometimes had to correct a player's moves, he was never negative or belittling—Coach made everyone feel at ease.
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what is meant by the value of an annuity? choose the correct answer bel…
D. The value of an annuity is the sum of all deposits plus all interest paid
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a) a 90% ci for test scores is (80, 87). this means that the average sc…
C. A 90% CI for test scores is (80, 87). This means that we are 90% confident that the population mean is in this range. E. If we increase our confidence level, we will increase o…
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when i cried out with my mothers grief, none but jesus heard me! and ai…
A. Sojourner Truth believes that women should have equal rights to men.
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11) just some general questions: a) increasing my confidence level will…
a) Increasing my confidence level will **increase** the margin of error and therefore will also **increase** the width of my confidence interval. b) Increasing my sample size will…
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kamals sports sells golf tees in packs of 8. meanwhile, candices gear s…
24
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fill in the blank question much of prejudice in contemporary life is li…
implicit
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being in proportion to that of the two constituents and being proportio…
A. large republics are better
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9) a new sneaker claims that it can make male athletes jump higher. a s…
The 95% confidence interval is \((0.324,2.676)\). This means that we are 95% confident that the True mean increase in jump height for all male athletes when wearing the new sneake…
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10) suppose you administer a certain aptitude test to a random sample o…
The 99% confidence interval for the population mean \(\mu\) is \((92.12,117.88)\)
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8) you are testing whether students at your school are overweight. you …
The 90% confidence interval is \((3.355,6.645)\)
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7) you are testing chocolate chip cookies to estimate the mean number o…
The 95% confidence interval is \((9.216, 10.784)\). This means that we are 95% confident that the true mean number of chips per cookie lies between \(9.216\) and \(10.784\)
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use technology to find an equation of the line of best fit for the data…
\(y = 2.65x-13.38\)
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chao boiled with anger and scolded his sons for losing their money and …
A. Section 1
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5) you sample 12 bugs and find the sample mean is 2.40 cm. you are told…
Problem 5: The 95% confidence interval is \((2.287,2.513)\). Interpretation: We are 95% confident that the True population mean length of bugs lies between \(2.287\) cm and \(2.51…
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read the meanings of the word bolt, then read the sentence. definition …
Definition 3
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what is needed to write a developed character? select all that apply. a…
- First question: a thought - out name with a meaning, a likable or memorable character, a desire or want, a conflict. - Second question: parody, irony, wit.
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6. in paragraph 1 of source 1, the word precious means — rare loved val…
valuable
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4. because the latin root corpus means \large collection\ or \body,\ th…
D. businesses
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select the term that means \an object or picture that represents someth…
Symbol
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what is the purpose of research? ○ to take information from multiple so…
- For "What is the purpose of research?": to investigate a topic to establish facts and reach new conclusions - For "What is the purpose of a frame story?": to tell one or more sm…
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read the passage from sugar changed the world. in every single american…
to inform the reader that Louisiana's short harvest season meant that enslaved people were cruelly overworked
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a bag contains 8 red marbles, 9 yellow marbles, and 7 green marbles. ho…
A. 11
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read the excerpt from chapter 7 of night. one day when we had come to a…
a humiliating sight
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read the passage. amits thoughts were a river rushing over boulders, wa…
Amit's thoughts are confused and contradictory.
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read the definitions. taugh taught /tôt/ verb past tense of teach, mean…
taught, pores
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what do the words partial, palatial, and potential have in common? they…
They have the same suffix.
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read the passage. when she realized that she had missed the bus, jia be…
agitated
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what is probability? the number of outcomes that are impossible the per…
likelihood or chance of a specific outcome occurring
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according to the law of probability, what is the chance of flipping a c…
\(\frac{1}{2}\)
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the law of probability is used to: prove every event is certain change …
calculate the likelihood of outcomes
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use technology to find an equation of the line of best fit for the data…
The equation of the line of best fit is \(y = 2.54x-13.27\)
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question 10 this is the only question in this section. question what ty…
positive correlation
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according to the law of probability, what is the chance of flipping a c…
\(\frac{1}{2}\) (the option \(1/2\))
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if you flip a quarter and a penny, what is the probability of both of t…
25%
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the law of probability is used to: prove every event is certain change …
calculate the likelihood of outcomes
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use technology to find an equation of the line of best fit for the data…
The equation of the line of best fit is \(y = 3.14x-14.60\)
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question 5 what are potential consequences when you dont choose your wo…
B. write a boring story, C. confuse your reader, D. misconstrue meaning
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in a ball pit 75% of the balls are yellow in color. if you randomly pic…
A. \(\frac{1}{4}\)
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the theoretical probability of drawing a red marble from a bag is $\fra…
a. \(24\) red marbles. b. \(32\) times.
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the circle graph below shows the colors of flowers in a garden. based o…
C. Red and purple
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in the game of roulette, a wheel consists of 38 slots numbered 0, 00, 1…
A. The probability of being ahead decreases as the number of games played increases
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in the game of roulette, a wheel consists of 38 slots numbered 0, 00, 1…
\(0.0069\)
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in the game of roulette, a wheel consists of 38 slots numbered 0, 00, 1…
\(0.0069\)
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in the game of roulette, a wheel consists of 38 slots numbered 0, 00, 1…
\(0.1357\)
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10. a national survey reports that 18% of undergraduate students work o…
D. Because the sample proportion is less than two standard deviations away from \(p\), there is insufficient evidence against the null hypothesis.
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in the game of roulette, a wheel consists of 38 slots numbered 0, 00, 1…
\(0.4681\)
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question 14 of 25 the stemplot below shows the heights (in inches) of s…
C. 50 inches