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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use the venn diagram to calculate conditional probabilities. which cond…
$P(E|D)=\frac{7}{25}$
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quizzes and tests total points: --/150 \material\ as defined by the cou…
C. Information important enough to affect an investor's decision.
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after reading \straw into gold,\ answer the following questions using b…
1. Requires reading text for motivation clues. 2. Requires reading text for assumptions and requests. 3. Requires reading text for feelings and quote. 4. Requires reading text for…
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after reading \straw into gold,\ answer the following questions using b…
1. Answer would be based on text - specific details about Cisneros' reasons. 2. Answer would be based on what the text reveals about the invitees' assumptions and requests. 3. Ans…
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you flip a coin, pick a card, and spin the spinner. how many outcomes a…
30
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elias writes the numbers 1 through 20 on separate slips of paper. there…
yes, because the probability of choosing an odd number is equal to the probability of choosing an odd number given that the slip is yellow
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directions: for the following questions, choose the best answer or resp…
1. C. Experiments reveal that human behavior is greatly influenced by humans' desire to fit in. 2. B. related to eating 3. B. Both groups show that people's actions are controlled…
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you spin the spinner and flip a coin. how many outcomes are possible?
8
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after we re - read the \lantern keeper\ in class, craft an analysis par…
Claim: In "The Lantern Keeper," the author uses personification to show the importance of the lantern as a guiding presence. Evidence: For example, the text says, "The lantern's l…
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match the age to the important retirement event. when you can take pena…
When you can take penalty - free withdrawals from a 401k or IRA: 59.5 The earliest you can typically begin receiving a pension check: 62 The typical age that people begin receivin…
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at sanger’s auto garage, three out of every five cars brought in for se…
$\frac{12}{35}$
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after you read a check your understanding. 1. name three rules to follo…
1. Use a clear subject line, be concise, use proper grammar and spelling. 2. Double - check recipients, add attachments if needed, consider the timing. 3. Affects professional ima…
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at a hospital, 56 percent of the babies born are not girls. of the baby…
5%
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match the following 401k terms with their correct descriptions: when yo…
1. Matching 2. Vesting 3. Rollover 4. Withdrawal/Distribution
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question 3 of 11 which of the following is true about warnings? choose …
B. A warning sometimes might relate to something other than a student’s writing or action.
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in the united states, the government holds some control over the distri…
B. Mixed Economy
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a box contains four red balls and eight black balls. two balls are rand…
\(P(B)=\frac{2}{3}\) \(P(R|B)=\frac{4}{11}\) \(P(B\cap R)=\frac{8}{33}\) The probability that the first ball chosen is black and the second ball chosen is red is about \(24.24\) p…
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complete the text with the better conjunctive adverb. on the hubble spa…
As a result
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what is one healthy way you can deal with anger? 3. vocabulary what doe…
What is ONE healthy way you can deal with anger? Deep - breathing What does the word impulsive mean? Acting suddenly without thinking carefully in advance Give an example of an im…
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the functions f(x)= - 2.8x + 287 and g(x)=0.01x² - 4.9x + 370 model the…
A. \(f(70)=91\) which means that the chance of a 60 - year - old surviving to the age of 70 is 91%. B. \(g(70)=76\) which means that the chance of a 60 - year - old surviving to t…
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a dentist polls his patients and finds that 83 percent brush their teet…
23%
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question 11 (q011) which of the following statements about ethical rese…
- Q011: B. It is unethical to observe people in public without their knowledge. - Q012: A. the scientific method - Q013: C. test his hypothesis - Q014: A. the number of math probl…
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question 40 the tenth amendment addressed the concerns of anti - federa…
D. the powers of state governments
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1. \if i have seen further its because i stood on the shoulders of gian…
1. Progress is built on predecessors' work. 2. Gravity weakens with distance from Earth's center but never completely disappears near Earth. 3. Through empirical evidence and obse…
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read the passage from \the crab that played with the sea.\. ah! said th…
They describe Pau Amma's impact on the sea and the animals.
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assonance has the same or almost the same meaning as: book token target…
D. vowel rhyme
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allegory has the same or almost the same meaning as: pact flick citatio…
D. parable
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2 multiple choice 1 point what does the author most likely mean by ingr…
B. techniques to attain certain desired effects
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stead means : a journey to a sacred place the place properly occupied o…
the place properly occupied or served by another
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enumerate has the same or almost the same meaning as: vindicated mandat…
C. number
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notion means : a vague idea in which some confidence is placed a quanti…
A. a vague idea in which some confidence is placed
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the concept of synergy means: a) the energy from a system when each par…
1. b) the combined energy from smaller parts which is greater than the total if those parts functioned separately 2. b) ethnicity and culture
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the figure shows the cost of mailing a first - class letter, f(x), as a…
\(f(0.75)=0.58\) It costs $\$0.58$ to mail a \(0.75\) - ounce first - class letter.
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3 fill in the blank 1 point the sign ≥ means choose your answer...
greater than or equal to
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question 11 (5 points) listen the legal right to expatriation means tha…
C. renounce your citizenship
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which two quotations from paragraphs 8 - 15 help the reader understand …
The next day, Mister Toussaint came home and discovered that the overflowing rubbish was still... under the sink. (paragraph 10) LOONY GOONY's singing voice really got on Mister T…
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a fair dice with pips representing the numbers 1, 2, and 6 is rolled. a…
a. $\frac{1}{3}$, $0.333$, $33.3\%$ b. $\frac{1}{2}$, $0.5$, $50\%$ c. It is more likely to roll a factor of 6 because the probability of rolling a factor of 6 ($0.5$) is greater …
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13 the word ratios most nearly means: a comparative amounts. b random g…
A. Comparative amounts
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question 1 in a socialist economy, the distribution of wealth is primar…
B. Equality and reducing income inequality
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box whiskers lower quartile q1 median upper quartile q3 min whisker max…
For example #14, after calculating min = 41, Q1 = 43, Q2 = 44, Q3 = 48, max = 50, we can match with the correct box - plot among the given options (not fully shown in the question…
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example #7: masses (kilograms) andrew 2.4 2.5 3.6 3.1 2.5 2.7 maria x 3…
\(2.6\) ### Example #8
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2 - 45. mathematicians reason abstractly and quantitatively. if the pro…
30%
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ex#28: mitchell is on his schools track team. he recorded his times in …
Ex - 27: a) $150$ b) $180$ c) $60$ Ex - 28: a) $28$ seconds b) $18$ seconds c) $25\%$ Ex - 29: a) $30$ b) $60$ c) $10$ d) $37.5\%$ Probability problem: $\frac{5}{7}$
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the box plots summarize the masses, in kilograms, of two groups of gaze…
#8: B. \(3x^2+14x + 17\) #9: B. \(\frac{8x-3}{2}\) #10: 16 #11: B. \((x^2+2)(x^2 - 3)\) #12: B. \(n=\frac{7m}{5}-p\)
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#2 percentages there are 55 students in spanish club. a sample of the s…
A. 11 ### #3
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absolute deviations are ____________ always positive always negative so…
always positive
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mr. pearson drives a bus for the city of greenwood. last month, he kept…
50
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#12 questions 22 and 23 refer to the following information. annual budg…
B. $65000000$ per year ### #13
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mean attentiveness scores by leave time condition mean test score (high…
A. In the second test administration, participants who took 2 - 4 days of leave had higher average attentiveness scores than did those who took no leave, but in the third test adm…
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coach jackson measured the height of each player on the springfield mid…
10
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8. assume that during a three - hour period spent outside, a person rec…
For the temperature - water consumption data: Positive correlation 8. Positive correlation 9. No correlation 10. Negative correlation 11. Positive correlation (initially) 12. Posi…
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the given graph represents the probability that two people in the same …
a. The function \(f\) is strictly increasing, so it is one - to - one and has an inverse that is a function. b. - \(f^{-1}(0.7)\approx30\) represents the number of people who woul…
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in 2023, shauna received a distribution from her 401(k) account this ye…
Shauna is 58 years of age but not yet retired when she receives the distribution.
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judy asked her coworkers about their typical commute time. this box plo…
25
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at noon, a weatherman reported the temperature of each city in the area…
68
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#21 in an italian class, 65 percent of the students were women. at the …
46.8 ### #22
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coach lucas kept track of the number of shots each basketball player to…
16
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while recent scholarship has undermined claims that the works of twelft…
A. controversial among
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the fox river fishing club held its annual bass fishing contest last we…
3
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even with the widespread adoption of personal computers, many authors s…
D. there is no way to reasonably evaluate how a work would be different if it had been written by other means
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the main, or central, idea of the passage is baseball players and coach…
It cites examples of potential signals.
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read the passage. do you speak baseball? if you watch a professional ba…
Baseball players and coaches use secret signals to communicate strategy to each other.
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the main, or central, idea of the passage is in order to secure fair ac…
It provides historical context for understanding the lack of women's showers.
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standard deviation : tells you how far each score is from the mean. \hi…
Approximately 28.94
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how yale womens crew leveled the playing field in 1976, the highly succ…
In order to secure fair access to showers, the Yale women's crew team called attention to Title IX in an unusual way.
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describing science, technology, engineering, and mathematics pay how do…
It is far higher than the overall median.
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calculate joshuas mean length of utterance (mlu) at the age of 35 month…
5
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what is the meaning of elastic as used in the text? clear or see - thro…
stretchy and bouncy
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calculate sarahs mean length of utterance (mlu) at the age of 30 months…
$3.75$
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the mean length of utterance (mlu): is a good predictor of childrens gr…
The Mean Length of Utterance (MLU) is a good predictor of children's grammatical abilities.
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what is the meaning of summit as used in the text? beautiful spot highe…
highest point
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32. performance task write a statistical question about teenagers at yo…
2500
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32. performance task write a statistical question about teenagers at yo…
2500
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what is the meaning of miniature as used in the text? smaller than usua…
smaller than usual
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2 select the correct answer. which of these sentences from the short st…
C. It is so hard to talk to John about my case, because he is so wise, and because he loves me so.
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based on the text, in which two ways are today’s new marbles different …
Most modern marbles are meant for children instead of for adults. Most modern marbles are made by machine instead of by hand.
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31. problem solving to estimate the margin of error when the standard d…
a. about $\pm0.492$ b. The interval is between $52 - 0.492=51.508$ and $52 + 0.492 = 52.492$ 1. $51.508$ 2. $52.492$
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30. thought provoking consider a large population of which p percent (i…
The sample size needed is maximized when \(p = 0.5\). When \(p\) is close to \(0\) or \(1\), the sample size needed is relatively small. When \(p\) is around \(0.5\), the sample s…
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help you know what birds youre seeing. some bird - watchers als to reco…
something to do for fun
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read paragraph 9 of the story. then answer the multiple - choice questi…
B. with great passion
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calculate sarahs mean length of utterance (mlu) at the age of 30 months…
3.75
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calculate joshuas mean length of utterance (mlu) at the age of 35 month…
4.8
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directions: for the following questions, choose the best answer or resp…
1. C. certain something bad will happen. 2. A. Even if something is cruel, people have the tendency to follow the crowd and participate. 3. D. He represents the fear of change and…
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the boxplot below displays the arm spans for 44 students. which of the …
143, 162, 168, 180, 202
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in some gymnastics meets, the score given to a gymnast is the mean of t…
Her score is lower after removing the highest and lowest scores.
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the heights of a sample of 15 students are recorded in the stemplot bel…
66
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a box of led light bulbs was tested to see how long the light bulbs las…
The lifetime of the light bulbs typically varies by about five years from the mean.
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thirty - six students at a large university were given a test to measur…
105 - 108
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the histogram represents the distributions of essay scores for high sch…
The juniors tended to have higher essay scores than the sophomores. The interquartile range is the best comparison of the measure of variability.
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data were collected from a typing class with 45 students. the class had…
The standard deviation would be about the same, perhaps a little smaller.
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2÷\\frac{1}{5} what does this division expression mean? how many are in…
How many $\frac{1}{5}$s are in 2?
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the distribution of the salaries at a small business is strongly skewed…
The median is better because it is not affected by the high salaries.
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29. problem solving a survey reported that 47% of the voters surveyed, …
1. 500 voters 2. about $\pm4.5\%$ 3. Candidate A: between $42.5\%$ and $51.5\%$ 4. Candidate B: between $48.5\%$ and $57.5\%$ 5. No
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the box plots show the data distributions for the number of text messag…
2
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iq scores are collected from a sample of students at a large university…
104
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without making any calculations, which data set has the smallest standa…
1, 1, 1, 1, 2, 2, 2, 2
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the five - number summary for the lengths of songs, in minutes, perform…
1.2
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27. making an argument your friend says that a margin of error can be a…
No
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the parallel boxplots below display the quiz grades (out of 30) for two…
The distribution of quiz grades for class 1 appears to be skewed right, and the distribution of quiz grades for class 2 appears to be fairly symmetric.
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9. the best type of graph to use to show the percentages of a whole is …
B. Circle Graph