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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judicial means : capable of being expressed as a quotient of integers o…
relating to the administration of justice
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an internet and cable - television supplier surveyed a random sample of…
About one - fourth of the cable - television customers are not satisfied.
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bill means : an assumption on which rests the validity of something els…
an itemized statement of money owed for goods or services
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legislative means : relating to a lawmaking assembly capable of being e…
relating to a lawmaking assembly
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congress means : a line of people or vehicles waiting for something a m…
a formal meeting, especially of representatives
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executive means : a person of exceptional holiness a contestant entered…
someone who manages a government agency or department
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1. p(a) = 1/3. p(b) = 1/2, p(a ∪ b) = 1/6 d) calculate p(a ∩ b) e) calc…
d) \(P(A\cap B)=\frac{2}{3}\) e) \(P(B|A) = 2\) f) The events are not independent. Because \(P(A\cap B) eq P(A)\times P(B)\)
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right has the same or almost the same meaning as: willing plentiful pro…
proper
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senator means : a member of a legislative assembly a person who is adva…
a member of a legislative assembly
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as part of a survey, 1600 people were asked to name their favorite spor…
\(33\%\)
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read this quotation from paragraph 7. hes a beartown man, his dads a be…
C. loyal
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read the excerpt from act 2 of a dolls house. helmer: and it is just by…
Helmer is controlling and does not want to be seen as one who lets his wife sway or control him; Nora controls Helmer, and thinks that Krogstad is not as bad as Helmer believes he…
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read the excerpt from act 2 of a dolls house. nora: that letter is from…
Nora has forged her father’s name on the loan she received from Krogstad, and he is threatening to expose her to Helmer.
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the graph shows the relationship between the weight of silver and the t…
A. The point \((1,17)\) shows the constant of proportionality. B. The point \((0,0)\) means that \(0\) pounds of silver cost \(\$0.00\). C. The graph shows a proportional relation…
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read the passage from a dolls house. nora: really! did a big dog run af…
They show that Nora goes from playing happily with her children to being startled by Krogstad, an unwelcome visitor.
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the following graph shows the average price of a movie ticket for the y…
a) The correct bar - graph is the one that starts from \(0\) (let's assume it's graph A among the options). b) B. Yes, the price difference appears more reasonable in the new grap…
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the graph shows a proportional relationship between a familys distance …
49 For the meaning of the point \((1,49)\):
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part 2 of 2 three friends are buying seashells at the gift shop on the …
A. The number of seashells and the cost have a proportional relationship. The constant of proportionality is $0.40$, which means the cost is $\$0.40$ per shell.
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three friends are buying seashells at the gift shop on the beach. melan…
The constant of proportionality is $k = 0.40$. It means that each seashell costs $0.40$ dollars. The correct graph is the one that is a straight line passing through the origin wi…
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in order to listen to louder, more obnoxious vo(三)t ← → taunt us from o…
B. Magnificence
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the first part of the constitution is called the preamble. the preamble…
- "... establish justice, ensure domestic tranquility..." → "... create fair laws, make sure that American society is peaceful...". - "... provide for the common defense, promote …
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4. based on the venn diagram below, how many students own have a sister…
\(13\)
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2. which of the following statements is not supported by the venn diagr…
The statement "There are 55 students taking biology and geometry" is not supported.
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1. based on the venn diagram below, how many students are on the baseba…
34
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what does export mean? 42 none of the above. a game you play on the com…
To send goods to other countries for trade/sale
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margaret bourke white is famous for her photographic essays of wwii. wh…
a. If the living do not examine past mistakes, in particular with war and hatred, then the ones who died because of these things will have died for no reason.
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question 7 (1 point) the moondance riding academy held its annual horse…
B. \(34\%\)
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question 2 (1 point) a poll of 200 students was taken before center hig…
E. 15%
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13. solve the following problems. a. a repeated - measures study with a…
The sample provides evidence of a significant treatment effect.
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an elevator has a placard stating that the maximum capacity is 3600 lb …
The probability that a sample of 25 randomly selected adult males has a mean weight greater than 144 lb is \(1.0000\) (rounded to four decimal places).
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an elevator has a placard stating that the maximum capacity is 3600 lb …
\(0.9357\)
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6 the american comes to with a start. in india, milk in a bowl means on…
Snakes like to be warm. There is a cobra in the rafters.
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assume that a simple random sample has been selected from a normally di…
B. \(H_0:\mu = 1000\) hic, \(H_1:\mu<1000\) hic
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when she was 9 years of age, a girl did a science fair experiment in wh…
Reject the null hypothesis. There is sufficient evidence to reject the claim that touch therapists use a method equivalent to random guesses. The results do not suggest that touch…
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use the accompanying radiation levels (in \\( \\frac { w } { k g } \\) …
\(86\)
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in designing a work desk, it is found that males have sitting knee heig…
a. Significantly low: Heights that are less than \(18.4\) in. b. Significantly high: Heights that are greater than \(24.8\) in. (Option B for part b) c. Neither significantly low …
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the scores on a test are normally distributed with a mean of 100 and a …
\(110\)
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complete the sentence with the word that best fits the overall meaning …
a convoluted
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use the accompanying radiation levels \\( \\left( \\text { in } \\frac …
\(16\)
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a scientist has four petri dishes of different sizes. each dish contain…
Dish C and Dish D have approximately the same population density.
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for the given set of numbers, find the mean, the median, and the mode. …
\(8.2\)
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the data to the right represent the number of chocolate chips per cooki…
(a) C. Yes. The name brand appears to have more chips per cookie. (c) B. Yes. The store brand has a more consistent number of chips per cookie.
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the placement test for a college has scores that are normally distribut…
\(567.5\)
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systolic blood pressure readings for a population of adults are normall…
The z - score is \(0.6\). The percentage of people with blood pressure readings above \(128\) is \(27.43\%\)
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use the accompanying table of z - scores and percentiles to find the pe…
\(30.38\)
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the figure illustrates a normal distribution for the prices paid for a …
\(49.85\%\)
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use the range rule of thumb to identify the values that are significant…
A. Test scores that are greater than \(29.2\)
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researchers measured the data speeds for a particular smartphone carrie…
\(3.01\)
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what is the equation of the trend line in the scatter plot?use the two …
\(y=x - 2\)
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an elevator travels down from the top floor of a skyscraper. the graph …
A height of 525 feet after one second.
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researchers measured the data speeds for a particular smartphone carrie…
a. \(60.09\) Mbps b. \(3.00\) c. \(z\approx3.00\) d. Yes, the carrier's highest data speed is significant.
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what is the meaning of the word in bold? the bay of pigs invasion is wi…
a complete failure or disaster
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assume that thermometer readings are normally distributed with a mean o…
\(0.2684\)
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engineers want to design seats in commercial aircraft so that they are …
\(17.4\)
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find the area of the shaded region. the graph depicts the standard norm…
\(0.7337\)
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review the passage. the verbal irony is shown in bold. as i started for…
It implies that the people are more interested in entertainment than their own homes.
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review the passage. the allusion is shown in bold. i know where i have …
It suggests that the narrator is entering a dangerous situation.
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review the passage. the metaphor is shown in bold. mr. morrisons song f…
It suggests that Mr. Morrison is walking silently.
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assume that thermometer readings are normally distributed with a mean o…
The probability that the reading is between \(0.50\) and \(1.75\) is \(0.2684\)
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use z scores to compare the given values. in a recent awards ceremony, …
The z - score for the winner of Best Actor is \(z=-1.20\) and the z - score for the winner of Best Actress is \(z = 1.75\). The winner of Best Actress had the more extreme age.
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a data set includes data from student evaluations of courses. the summa…
The null and alternative hypotheses are \(H_{0}:\mu = 3.50\) and \(H_{1}:\mu eq3.50\) (Option C). The test statistic \(t\approx - 2.35\), the P - value is approximately \(0.021\)…
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use the sample data and confidence level given below to complete parts …
a) \(0.042\) b) \(0.006\) c) \(0.036<p<0.048\) d) D. One has 95% confidence that the interval from the lower bound to the upper bound actually does contain the true value of the p…
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franklin roosevelts radio address—second half of new deal by franklin d…
A. deception
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find the indicated probability and interpret the result. from 1975 thro…
D. About \(54.63\%\) of samples of 35 years will have an annual mean gain between 400 and 800.
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describe the correlation in the scatter plot below. answer attempt 1 ou…
negative; decrease
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for the wheel pictured on the right, assume that a person spins the poi…
\(6.50\)
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which term describes what is happening in the amount per trial vs. time…
A constant amount is eaten.
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amount consumed each trial vs. time (s) how many items are consumed at …
6
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assume that adults have iq scores that are normally distributed with a …
\(0.7698\)
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review the passage. the simile is shown in bold. mrs. sylvester was the…
It helps the reader imagine Mrs. Slyvester's voice.
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what is the meaning of profusion as it is used in paragraph 13? a heigh…
C. Abundance
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on the walk to school each day, a student looks for pennies on the grou…
\(\frac{5}{24}\) (the second option)
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a science teacher keeps a bag of dice, all the same size, for classroom…
0.667
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to help divide a group into 4 teams, the teacher brought out a bag with…
0.250
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a standard deck of 52 cards contains 4 jacks, 4 queens, and 4 kings. fi…
\(\frac{2}{13}\) (the third option)
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find the probability that the next 1,000 cars purchased in your city wi…
0.001
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question: 35 the graph below represents the number of calories burned f…
B. To burn 480 calories, an individual must walk for 4 hours; C. Walking burns calories at a rate of 120 calories per hour.
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of the 1,286 students enrolled at the community college last fall, 367 …
relative frequency approach
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if you roll a six - sided die, what is the probability that you will ob…
\(\frac{2}{3}\) (the first option)
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the probability of winning a prize in a local contest is \\( \\frac { 1…
C. \( 5:1 \)
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the job search and possible pitfalls like that informed bad behavior to…
a manager from a past job
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the job search and possible pitfalls use the information below to answe…
being unprepared
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the job search and possible pitfalls use the information below to answe…
resume, cover letter, references
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question 31 points 2 what type of context clue tells us that the meanin…
Contrast
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the term \mesopotamia\ means \______\. a gods miracle b gods chosen lan…
D. the land between the rivers
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interpret read the ads. find the word or phrase in the box. match each …
1. lowest price available 2. warranty 3. free 4. expire 5. everything included 6. installation
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what part of the campers were young adults, teens, or children? (a) $\\…
C. \(45\%\)
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what was a significant consequence of western expansion? * preservation…
- First question: Environmental damage and species extinction - Second question: Two - party system with distinct ideological positions
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use the range and the mean to determine the missing numbers in each ord…
1. The missing numbers are \(17\) and \(33\). 2. The missing numbers are \(3.5\) and \(25\).
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review the passage. the metaphor is shown in bold. mr. morrisons song f…
It suggests that Mr. Morrison is walking silently.
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(01.01 mc) match each of the following figurative language devices with…
1. a. Hyperbole 2. c. Metaphor 3. e. Personification 4. d. Simile 5. b. Symbolism
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the interview process is essential to being hired, but it isnt the only…
being unprepared
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the interview process is essential to being hired, but it isnt the only…
resume, cover letter, references
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3. keisha gathered data by asking ten people the question, “how many in…
The median would best represent her data. The value \(12\) is an outlier. The mean (\(2.4\)) is pulled up by the outlier \(12\). The median (\(1.5\)) is less affected by the outli…
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the job search and possible pitfalls use the information below to answe…
a manager from a past job
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question 14 points 2 choose the sentence that is capitalized correctly.…
The meaning of Stonehenge was first discussed around 1139 in the book History of the Kings of Britain.
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question 7 (4 points) the judges confusing speech made the public quest…
Question 7: C. Competence Question 8: C. Adapt
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sigfig#9. there are exactly 100 cg in 1 g. how many significant figures…
unlimited number
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question 9 points 1 choose the correct answer. semantic change refers t…
a change in meaning over time
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4 a local car salesperson created a scatter plot to display the relatio…
a. Above. Because the data point for a 4 - year - old car is above the line of best fit. b. On (neither above nor below). Because the data point for a 12 - year - old car is on th…