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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express the confidence interval (0.432, 0.52) in the form $hat{p}pm e$.…
B. \(0.476\pm0.044\)
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style and structure. • this close reading is the source of direct quota…
- First question: To argue for a certain interpretation of a work of literature - Second question: Discuss the other interpretations, making an argument for his interpretation
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all of the following is a need except * a good education clothing fine …
1. C. fine jewelry 2. A. economic resources 3. D. employees
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1. the giant redwoods and the giant sequoia are different. the giant re…
C. considerably
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question 8 read this passage from the article: his fixation intensified…
C. became magnified
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for an in - class demonstration, a teacher flips a fair coin 5 times, a…
The student is not correct. Each coin - flip is an independent event. The probability of getting tails on the 6th flip is still \(\frac{1}{2}\), just as it was for each of the pre…
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consider a situation in which ( p(a)=\frac{1}{8}, p(c)=\frac{1}{4} ), a…
\(\frac{1}{6}\)
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1. the distance between the shore and the floating dock was colossal. i…
C. difficult to accomplish
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use the paragraph to answer the question. robert talked a good deal abo…
It is written in prose form and it has characters, so it must be fiction.
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if the vendor sold a total of 740 drinks at the festival, how many soda…
B. 74 soda pops
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determining if events are independent or dependent a bag contains a var…
The events are independent because \(P(\text{red})\cdot P(\text{green}) = P(\text{red and green})\).
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what is the confidence interval estimate of the population mean μ? 0.45…
A. Yes, because it is possible that the mean is not greater than \(1\ \text{ppm}\). Also, at least one of the sample values exceeds \(1\ \text{ppm}\), so at least some of the fish…
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andrea rolls a number cube twice. she determines ( p(\text{even, then o…
Andrea’s solution is incorrect. The probability of the compound event is less than the probability of either event occurring alone. \(P(\text{even, then odd}) = P(\text{odd, then …
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examine the two data sets below. data set 1: 23, 34, 45, 46, 48, 49, 54…
A. Data Set 1 has a greater IQR than Data Set 2. C. Both data sets have the same Range. D. Data Set 1 has a greater mean than Data Set 2.
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mean: 142 median: 140 range: 167 iqr: 70 what can you tell about the ne…
C. The new snack bar has less calories than the average for the rest of the snack bars.
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calculating the probability of independent events three coins are flipp…
$\frac{1}{8}$
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read the sentence. oh, dave when i go jogging in the morning, my mind s…
It creates a compound - complex sentence.
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a data set includes 109 body temperatures of healthy adult humans havin…
\(98.047^{\circ}F<\mu<98.353^{\circ}F\)
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mean: 150 median: 162 mode: 163 range: 60 iqr: 35 after the measurement…
A. The Mean, Median and Mode need to add 3.75. The Range and IQR stay the same.
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using tree diagrams a spinner contains 3 equal sections: one red, one y…
\(\frac{1}{9}\) (corresponds to the first option)
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what is the confidence interval estimate of the population mean μ? - 1.…
C. The confidence interval limits contain \(0\), suggesting that the garlic treatment did not affect the LDL cholesterol levels.
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calculating the probability of independent events two events, a and b, …
\(0.06\)
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1. the distance between the shore and the floating dock was colossal. i…
C. enormous
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in a test of the effectiveness of garlic for lowering cholesterol, 48 s…
\(-1.33\space mg/dL<\mu<9.53\space mg/dL\) Since the confidence interval contains \(0\), it suggests that there is not sufficient evidence at the \(95\%\) confidence level to conc…
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which events are independent? check all that apply. rolling two number …
rolling two number cubes at the same time, choosing a card, and then flipping a coin, drawing a marble from a bag, replacing it, then drawing another marble, flipping the same coi…
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find the mode of the data. 75, 78, 80, 82, 82, 91, 96, 100 mean sum (ad…
A. 82
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1. the distance between the shore and the floating dock was colossal. i…
D. triumphing
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find the median of the data. 75, 78, 80, 82, 82, 91, 96, 100 mean media…
A. 82
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which statement correctly describes dependent events? two events are de…
Two events are dependent if the outcome of the first event affects the outcome of the second event.
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find the mean of the data. 75, 78, 80, 82, 82, 91, 96, 100 mean \\frac{…
B. \(85.5\)
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the right of private property means you can own, use, or dispose of thi…
True
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the united states could best be characterized as a command economy. * c…
False
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a gautam 1. how it works you are probably aware of printers that print …
C. to stick or stay attached to
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in a test of the effectiveness of garlic for lowering cholesterol, 48 s…
\(-5.30<\mu<5.30\)
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88 multiple choice question 3 listen true or false: the median is the m…
B. True
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using context clues, what is the meaning of the word myriad in the seco…
- For the meaning of "myriad": D. an extreme amount of - For context - clue sentences: A. starred with the magnificent splendor of vivid blooms, C. we could see the same splendid …
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a data set includes 103 body temperatures of healthy adult humans havin…
\(98.047<\mu<98.353\)
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ths-sc english language arts 10 cr sem b clauses: building and refining…
Heavy, black clouds rushing in from the horizon mean a storm is coming.
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a group of 59 randomly selected students have a mean score of 29.5 with…
C. \(28.4<\mu<30.6\)
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refer to the accompanying data display that results from a sample of ai…
A. We have 95% confidence that the limits of 13.05 Mbps and 22.15 Mbps contain the true value of the mean of the population of all data speeds at the airports.
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a college student was interested in the average amount college students…
A. The margin of error would increase.
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a sample random sample of 150 adults is obtained and each persons red b…
B. Even though the distribution of the population data is not given, the distribution of sample means will be approximately normal because the sample size is large enough accordin…
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birth weights in the united states are normally distributed with \\( \\…
A. The distribution of sample means will be normal since birth weights of all babies are normally distributed.
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a graduate student wanted to estimate the average time spent studying a…
C. We are 99% sure that the average amount of time spent studying among graduate students at this student's school is between 17.3 and 22.5 hours per week.
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ths-sc english language arts 10 cr sem b clauses: building and refining…
It describes the type of novel the speaker likes.
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given the following probabilities for choosing 2 marbles from a bag of …
dependent, because the product of \( P(\text{blue}) \) and \( P(\text{green}) \) does not equal \( P(\text{blue and green}) \)
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a graduate student wanted to estimate the average time spent studying a…
E. At this student's school \(95\%\) of all graduate students study between \(17.3\) and \(22.5\) hours per week on average.
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ansaldo wondered what all this meant and wracked his brain for some clu…
A. There are many rats.
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read the sentence. he ordered a magnificent banquet prepared and arrang…
B. luxurious
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researchers studied the mean egg length (in millimeters) for a bird pop…
B. \(7.5\) mm
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what is closest to the meaning of the word obsessed in the second parag…
- First question: A. consumed - Second question: B. drew me in, C. fascinated
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researchers studied the mean egg length (in millimeters) for a bird pop…
B. \(52.5\) mm
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current avg: 76 59 new test score: 82 82 new average ① ②
1. \(79\) 2. \(70.5\)
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determining individual probabilities consider a situation where ( p(a)=…
\(\frac{5}{8}\) (the third option)
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peregrine travel up to 15,000 miles each year, these colored leg bands …
A. consumed
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the grammatical errors in this passage are intentional. city hall is th…
1. B. a meeting to address issues concerning people who currently live in the town 2. A. people currently living in the town
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2. sarah is deciding which courses she wants to take in her next colleg…
a) \(P(A\cap B) = 0.28\) b) \(P(A\cup B)=0.72\) c) No, ya que \(P(A\cap B) eq P(A)\times P(B)\) d) No, ya que \(P(A\cap B) eq0\)
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complete the statement below. a confidence interval for a population me…
A. A confidence interval for a population mean gives possible values the true population mean will be with a certain level of confidence.
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regina has a bag of marbles that contains 3 blue marbles, 4 red marbles…
The number of possible outcomes is \(144\)
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determine whether the given value is from a discrete or continuous data…
B. A discrete data set because there are a finite number of possible values.
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the data are at the nominal level of measurement. what is wrong with th…
C. Such data are not counts or measures of anything, so it makes no sense to compute their average (mean).
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the table gives the amount of debt, in dollars, on an individuals credi…
C. \(42,159\)
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where dreams are found amid the court, where sneakers softly pound a sy…
A. The poet uses vivid imagery and sensory details to capture the physicality of the sport.
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three coins are flipped. the possible results are shown in the tree dia…
\(\frac{3}{8}\)
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some states now allow online gambling. as a marketing manager for a cas…
\(n = 3995\) (rounded up to the nearest integer)
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which are dependent events? check all that apply. choosing 2 socks from…
choosing 2 socks from a drawer, without replacement; picking 4 cards from a deck, one after the other
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read the excerpt from paragraph 8. this is why it is important that we …
by using exaggeration to explain their argument
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express the confidence interval ( 0.444 < p < 0.888 ) in the form ( hat…
$0.666\pm0.222$
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you noticed that during your last three live streams, your average fram…
Stream B \(<\) Stream A \(<\) Stream C (the third option)
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a magazine provided results from a poll of 500 adults who were asked to…
D. A 99% confidence interval must be wider than an 80% confidence interval in order to be more confident that it captures the true value of the population proportion.
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of 118 randomly selected adults, 34 were found to have high blood press…
C. $20.6\%<p<37.0\%$
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read the passage from sugar changed the world. on the day the coolies w…
Indians retained some of their individuality by being able to keep their names.
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fifty people are selected randomly from a certain population and it is …
B. 0.24
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eric randomly surveyed 150 adults from a certain city and asked which t…
B. \(0.60\)
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eric randomly surveyed 150 adults from a certain city and asked which t…
C. We are 95% sure that between 52% and 68% of all adults in this city will root for North High School.
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fill in the blank. the margin of error is the width of the confidence i…
half
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a good sign is that your video is getting more views each day. now, you…
1,250 views
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fill in the blank. a______is a single value used to approximate a popul…
point estimate
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which of the following groups has terms that can be used interchangeabl…
Percentage, Probability, and Proportion.
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in paragraph 2, the word ambitious means— a a lot of fun to take part i…
C. difficult to accomplish
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fill in the blank. a critical value, ( z_{a} ), denotes the a critical …
\(z\) score with an area of \(\alpha\) to its right.
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what does the root cred mean? trust or believe say or declare bend or c…
trust or believe
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what does the root jur mean? bad or evil send good law
law
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look at the roots below. which one means small? mal min morph meter
min
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look at the roots below. which one means say or declare? dict scrib cre…
dict
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a magazine provided results from a poll of 2000 adults who were asked t…
The value of \(\hat{p}\) is \(0.11\) (the sample proportion). The value of \(\hat{q}\) is \(0.89\) (found from evaluating \(1-\hat{p}\)). The value of \(n\) is \(2000\) (the sampl…
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look at the roots below. which one means bad or evil? rupt mal mis puls
mal
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look at the roots below. which one means many? multi uni semi cent
multi
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look at the roots below. which one means shape? morph tract rupt flex
morph
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what does the root semi mean? many four one - half bend or curve
one - half
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look at the roots below. which one means earth or rock? astro bio geo t…
geo
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directions: find or select the best answer. show your work or you will …
Para \( 4 \) bananas, el peso es \( 2.16 \) libras y para \( 10 \) bananas, el peso es \( 5.4 \) libras.
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donate money to her. during her last eight live streams, she averaged 3…
\(\$0.47\) per viewer (the first option)
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what does the root chron mean? ancient do or make time weigh out or dis…
time
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what does the root flex mean? own or self bend or curve break or burst …
bend or curve
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which sentence has correct subject - verb agreement? dialogue change th…
Settings change throughout the story.
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(02.02 mc) arlo researched the starting salaries at the different compa…
The mean is $36125$, the median is $35940$, and the modes are $35920$ and $36730$.
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the fairness of a particular coin is being investigated by flipping the…
B. 1 out of 50,000 flips is a head
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ms. black runs a game studio. she offers workshops where students learn…
2
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the graph shows the number of each kind of book in heros personal libra…
\(\frac{7}{15}\) (the third option)