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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savannah is the costume manager for a large theater company. she has 10…
\(\frac{1}{5}\)
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you flip a coin. what is p(heads)?. write your answer as a percentage. …
50
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there are 15 children in lolas preschool class. during free time yester…
\(\frac{1}{15}\)
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the scatterplot below shows the association between the amount of time …
A. A student who does not study for the test receives a test score of about 10 points.
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there are 6 pieces of fruit in a basket, including 3 bananas. what is t…
\(\frac{1}{2}\)
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you spin the spinner once. what is p(4)? write your answer as a percent…
25%
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you spin the spinner twice. what is the probability of landing on a num…
\(\frac{1}{16}\)
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you pick a card at random. without putting the first card back, you pic…
\(\frac{1}{6}\)
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you pick a card at random. without putting the first card back, you pic…
\(\frac{1}{10}\)
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you roll a 6 - sided die two times. what is the probability of rolling …
\(\frac{1}{12}\)
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you pick a card at random. without putting the first card back, you pic…
\(\frac{2}{7}\)
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you pick a card at random, put it back, and then pick another card at r…
\(\frac{3}{16}\)
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you flip a coin twice. what is the probability of getting heads and the…
\(\frac{1}{4}\)
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if we know that (6 + i) is a root of a 2nd degree polynomial, find the …
6 - i 4 - sqrt(3) A. - 7 + sqrt(11) B. - 6 + 8i
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you spin the spinner twice. what is the probability of landing on a num…
\(\frac{2}{9}\)
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you pick a card at random. without putting the first card back, you pic…
\(\frac{1}{6}\)
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you roll a 6 - sided die two times. what is the probability of rolling …
\(\frac{1}{12}\)
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you spin the spinner twice. what is the probability of landing on a pri…
\(\frac{1}{16}\)
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you pick a card at random. without putting the first card back, you pic…
\(0\)
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sai #1 math - part 2 10 of 22 next 01:53:41 the graph gives the estimat…
C. The estimated number of emails the company sent to its customers in 2014 was approximately 8.1 million.
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you flip a coin twice. what is the probability of getting heads and the…
\(\frac{1}{4}\)
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the graph gives the estimated number of emails m, in millions, a compan…
The \(m\) - intercept represents the estimated number of emails (in millions) the company sent to its subscribers in 2014.
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matching match each item in column a with the items in column b. write …
1. D 2. C 3. E 4. B 5. A 6. C 7. B 8. D 9. D 10. C
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22 multiple choice 4 points what is the primary concern of social justi…
22. Fairness and equality 23. Reducing food waste and supporting those in need 24. The unnecessary disposal of edible food
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session 1 12. how is the point of view of the bird different from the s…
D. landed
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find the linear correlation coefficient for stride length versus speed …
\(\hat{y}=1.90 + 0.96x\)
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what term refers to the mid - level income of people in a specific area…
median income
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the mississippians were considered to be horticulturalists, which means…
D. people who grew plants, fruits, and vegetables
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isaac surveyed his class to find out what everyones favorite winter act…
\(6\)
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savannah added her friends birthdays to her calendar. she noticed that …
7
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ian was trying to decide what color to paint his room. he asked his fri…
7
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caleb collects battle trading cards. he made a bar graph to show the ki…
\(29\)
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avery and her family go on a summer vacation every year. the bar graph …
3
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nick has pen pals from all over the world. the bar graph shows how many…
5
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6.01 classifying types of data assignment 6.01 classify the following v…
1. N, D 2. N, D 3. C 4. N, C 5. N, C 6. C 7. N, D 8. N, D 9. C 10. N, C For the challenge: Numbers like Social Security numbers or phone numbers are just labels. They do not repre…
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bellas class earned a pizza party by giving the most to the canned food…
17
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winston had quite a collection of video games. the bar graph shows the …
\(52\)
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darius stocks the fruit section at a grocery store. the bar graph shows…
\(70\)
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ramona is preparing a persuasive speech on environmental issues to pres…
9. group membership 10. listeners interpret what you say on the basis of what they know and believe.
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multiple answer 10 points. audience-centeredness means that public spea…
1. keep the audience foremost in mind throughout the speechmaking process. 2. age.
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8. to determine a students grade, a teacher throws out the lowest grade…
85
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question 9. • ride 1: 1,000 meters in 12 minutes • ride 2: 2,500 meters…
C. 70 m/min
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5. prizes are to be awarded to the best pupils in each class of an elem…
4
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1. in a game of chance, 3 dice are thrown at the same time. what is the…
\(\frac{1}{216}\) (the fourth option)
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question 4 (1 point) what statement best describes the capital city of …
Question 4: B. Moscow, located in the European heartland, and home to St. Basil's Cathedral Question 5: D. Siberia has severe climate conditions
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assume that a procedure yields a binomial distribution with ( n = 2 ) t…
\(0.480\)
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this graph shows how the total number of quizzes rodrigo has ever taken…
\(30\) quizzes
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for this activity, you will answer questions about participation in pol…
A. To try and influence others to vote for a certain person.
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this graph shows how the amount of money left to raise is related to th…
\(300\)
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this graph shows how karens bank account balance is related to the numb…
5 admission tickets
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when you read a surprising story from an unknown source, you should cor…
1. A friend sends you an article claiming "Scientists Just Discovered Chocolate Cures the Common Cold!" The claim seems surprising, so you decide to corroborate the information. 2…
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when judging a news storys credibility, look for information that is in…
A. A healthcare article quotes insurance companies but not patients or doctors. C. A news story on a Senate election only interviews people voting for the same candidate. D. An op…
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15. the data below shows the number of hours per day that employees are…
\(70\%\)
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being informed is an important responsibility of citizenship. people le…
C. It references data that is inaccurate or outdated. D. It exaggerates some details to make the story more interesting.
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eleven percent of u.s. employees who are late for work blame oversleepi…
\(1\)
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eleven percent of u.s. employees who are late for work blame oversleepi…
\(1.26\)
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eleven percent of u.s. employees who are late for work blame oversleepi…
\(\sigma\approx0.63\)
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eleven percent of u.s. employees who are late for work blame oversleepi…
\(0.39\)
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eleven percent of u.s. employees who are late for work blame oversleepi…
$0.44$
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34% of likely u.s. voters think that the federal government should get …
The variance $\sigma^{2}=1.3$, the standard deviation $\sigma = 1.1$, and the interpretation is that on average, out of 6 randomly - selected likely U.S. voters, 2 voters think th…
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34% of likely u.s. voters think that the federal government should get …
\(1.1\)
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34% of likely u.s. voters think that the federal government should get …
The mean \(\mu = 2.0\) and the variance \(\sigma^{2}=1.3\)
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34% of likely u.s. voters think that the federal government should get …
$2.0$
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which of the following best describes the purpose of the alien and sedi…
They were aimed at people who were criticizing President Adam's foreign policy.
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question 6 2 points most importantly, though, the highway bypass would …
d. an editorial in a local newspaper
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refer to explorations in literature for a complete version of the text.…
It has a negative connotation, suggesting instability and stymied progress.
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excerpt from: the peachtree road race: a race like no other david mathe…
b. Because there are no costumes allowed in the Peachtree Road Race, it is more serious than the Bay - to - Breakers in San Francisco.
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seventy - two percent of adults in a certain country believe that life …
The variance \(\sigma^{2}=1.01\), the standard deviation \(\sigma = 1.00\), and on average, \(3\) out of every \(5\) adults in the country believe that life on other planets is pl…
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seventy - two percent of adults in a certain country believe that life …
$1.00$
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seventy - two percent of adults in a certain country believe that life …
\(1.01\)
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seventy - two percent of adults in a certain country believe that life …
\(3.60\)
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eighty - four percent of adults in a certain country believe that life …
On average, out of every 5 adults, 4.2 believe that life on other planets is plausible. The variance $\sigma^{2}=0.67$ and standard deviation $\sigma = 0.82$ measure the spread of…
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5. sara teaches aerobics classes as a part - time job. the amount of mo…
\(225\)
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most importantly, though, the highway bypass would have disastrous effe…
d. to decrease in value
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eighty - four percent of adults in a certain country believe that life …
The variance \(\sigma^{2}=0.67\), the standard deviation \(\sigma = 0.82\), and on average, the number of adults who believe life on other planets is plausible in a sample of \(5\…
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eighty - four percent of adults in a certain country believe that life …
\(0.82\)
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eighty - four percent of adults in a certain country believe that life …
\(0.67\)
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eighty - four percent of adults in a certain country believe that life …
$4.20$
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assume that hybridization experiments are conducted with peas having th…
a. Mean \(\mu = 19.5\) peas, standard deviation \(\sigma\approx2.2\) peas b. Significantly low: \(15.1\) peas or fewer; significantly high: \(23.9\) peas or more
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assume that hybridization experiments are conducted with peas having th…
\(2.2\)
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a. find the mean and the standard deviation for the numbers of girls in…
b. Significantly low: \(9.6\) girls; Significantly high: \(20.4\) girls c. Yes, 26 girls is significantly high. It suggests that the method is effective.
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5. paninis and cubanos are what type of sandwich? a club open - faced g…
5. D. pressed 6. A. "outside the meal" 7. B. raw or cured meat 8. D. antipasti
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assume that different groups of couples use a particular method of gend…
Values of \(9.6\) girls or fewer are significantly low.
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assume that different groups of couples use a particular method of gend…
$2.7$
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assume that different groups of couples use a particular method of gend…
$15$
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in a certain college, 33% of the physics majors belong to ethnic minori…
B. 0.981
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a test consists of 10 true/false questions. to pass the test a student …
A. 0.377
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based on a comcast survey, there is a 0.8 probability that a randomly s…
B. \(0.00467\)
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a tennis player makes a successful first serve 51% of the time. if she …
A. \(0.154\)
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assume that a procedure yields a binomial distribution with a trial rep…
B. \(0.172\)
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read the following passage about advancements in ancient egypt during t…
Leather workers
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read the following passage about queen anne, who ruled england, ireland…
To calm or lessen
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11 read paragraph 5. what is the meaning of diminutive as it is used in…
A. tiny
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10 the word judicious comes from the french word for carefully planned.…
B. sensible
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refer to explorations in literature for a complete version of the text.…
It has a positive connotation, suggesting rapid change for the better.
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part a: what idea is left unclear in the poem? (r 1 4) a the path the s…
7. B. the specific theme of the maiden’s song 8. D. by focusing on the impact of the melody itself
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5. how does the poets choice of rhythm in lines 1 - 4 add meaning to th…
D. It enhances the musical quality of the poem highlighting the focus on piper's song
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a student is writing a report about the indo - european language family…
- English and German language users: Speaker populations - Spanish, French, Romanian and Latin: History - Hittite: History - Latvian and Lithuanian: Geographic distribution
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the probability that liu yang makes a three - point shot in basketball …
\( 0.37 \) (or \(\frac{11}{30}\))
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a cereal company is putting 1 of 3 prizes in each box of cereal. the pr…
\(0.125\)