統計と確率
データ分析、確率分布、仮説検定、統計手法。
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on a survey, 5 students reported how many minutes it takes them to trav…
$11.2$
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the circle graph to the right shows each regions percent of a country. …
9.571
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a group of 6 students was asked, \how many hours did you watch televisi…
$8.8$
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read the excerpt from the enigma machine. cryptologists looked for crib…
people who study codes
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practice & problem solving 6. leveled practice what is the graph of the…
6. The $y$-intercept is $4$, which means the line crosses the $y$-axis at the point $(0,4)$. Plot this point. The slope of the line is positive, so it goes **up** from left to rig…
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(b) e: a randomly selected person finding cheese revolting. f: a differ…
C. E cannot affect F and vice versa because the people were randomly selected, so the events are independent.
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7. two brands of cell phones were tested to see how many hours they wou…
C. The range of Brand B is larger than the range of Brand A, which implies that Brand B has more variability in the number of hours one charge lasts. ### 8.
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ush financial is examining the use of its midtown atm machine. here are…
38
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determine whether the events e and f are independent or dependent. just…
B. E and F are dependent because having a credit card can affect the probability of a person going into debt.
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in a recent survey, 8 college graduates were each asked for the number …
18
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chau is recording the percentages he earned on each quiz in his math cl…
19
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according to a center for disease control, the probability that a rando…
B. No, because hearing and vision problems are not mutually exclusive. So, some people have both hearing and vision problems. These people would be included twice in the probabili…
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7. explain what the following equation means in context of hot and cold…
The first expression 2(-3) - 2(4) represents a net change in heat where 6 units of heat are removed due to cold - cube groups and 8 units of heat are added due to hot - cube group…
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determine whether the statement is true or false. if it is false, rewri…
A. True
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let event a = subject is telling the truth and event b = polygraph test…
B. The probability that the polygraph indicates lying given that the subject is actually telling the truth.
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the results of a schools drama club fundraiser are displayed in the dou…
4. Wrapping paper had more variability in sales. The answer would not change if wrapping - paper sales on day 4 were \(\$200\) because the overall spread and fluctuation of wrappi…
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read the definitions. rung \\ˈrʌŋ\\ middle english; old english hrung o…
He wrung as much water out of the towel as he could before hanging it up. When she heard the news, she wrung her hands in frustration.
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for 1 - 2, complete each statement. a community musical director is int…
1. greater 2. less 3. C. The members of Rockapella are slightly older on average than members of Good Treble.
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use the data in the following table, which lists survey results from hi…
$0.0018$
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12. generalize does deleting a data point always change the median of a…
There is now an outlier in the data set. The median is the same when the ninth player is added. The distribution becomes more skewed when the ninth player is added.
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which of the following best explains the impact of the gi bill on job c…
By offering small business loans, the GI Bill allowed returning soldiers to start new businesses that would hire more workers.
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three students scheduled interviews for summer employment at the brookw…
| Experimental Outcome | Value of $x$ | | ---- | ---- | | $(N,N,Y)$ | 1 | | $(N,N,N)$ | 0 | | $(N,Y,N)$ | 1 | | $(Y,Y,N)$ | 2 | | $(N,Y,Y)$ | 2 | | $(Y,Y,Y)$ | 3 | | $(Y,N,Y)$ | 2…
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read the passage from chapter 8 of the prince. agathocles, the sicilian…
The evidence uses stories of historical figures to support the claim.
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which of the following best describes anecdotes in persuasive writing? …
B. Short, personal stories that authors use to emphasize a point
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which of the following persuasive techniques can be defined as \a creat…
A. Figurative language
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which of the following best describes repetition in persuasive writing?…
When a writer emphasizes a point by saying it multiple times
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mathematics progress check rainfall (inches) how many storms have less …
B. 9
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each of fifty - one moviegoers was asked, \what is your favorite movie …
| | Comedy | Animated | |--|--|--| | Women | 12 | 15 | | Men | 10 | 14 |
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the line plot shows the amount of rainfall, in inches, during 14 storms…
B. 9
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read the sentence. alma plans to visit london and paris, where her pare…
It is a nonrestrictive relative clause because it begins with a relative pronoun, has both a subject and a verb, and is not necessary to the meaning of the sentence.
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each of thirty - seven students was asked, \do you prefer adventure boo…
| | Adventure | Drama | | --- | --- | --- | | Boys | 5 | 11 | | Girls | 8 | 13 |
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use the data in the following table, which lists drive - thru order acc…
0.664
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read the excerpt from the dark game. tension between the two sides esca…
D. espionage
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review the paragraph from the code book. ordinarily, if alice wants to …
B. conversely
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read this excerpt from a passage. look around and you will start to rea…
extended definition
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ations w/ distribution (lev 2) solve for x. 5(2x - 5) - 4x - 4 = -11
$x = 3$
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use the data in the following table, which lists drive - thru order acc…
a. The probability of getting two orders from Restaurant D is $0.0156$. The events are independent because choosing the first order does not affect the probability of the choice o…
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read the following sentence. \in factories, robots perform hazardous ta…
C. unsafe
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what does p(b|a) represent? choose the correct answer below. a. the pro…
C. The probability of event B occurring after it is assumed that event A has already occurred
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linear equations w/ distribution (lev 3) score: 0/5 penalty:none questi…
x = \frac{8}{5}
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read this sentence. \the guy is slick,\ said will. \he quickly showed m…
B. skilled
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how many leaves measure 4\frac{3}{4} inches? leaf measurements length (…
2
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which word is associated with multiplication when computing probabiliti…
C. And
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which of the following is an informal definition of hot dog? hot dog is…
Hot dog is a versatile word that may be a noun referring to a mild sausage, a verb meaning to perform in a flashy manner, or even an interjection expressing excitement or pleasure.
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what is the difference, in inches, between the longest leaf and the sho…
$2\frac{1}{2}$
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what is the total number of leaves that were measured? leaf measurement…
9
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use the data in the following table, which lists drive - thru order acc…
The probability is approximately $0.912$. The events are not disjoint.
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use this dictionary entry to answer the question. aut- (root): self; se…
the act of operating without direct control by a person
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use the data in the following table, which lists drive - thru order acc…
$0.119$
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use the data in the following table, which lists drive - thru order acc…
$0.111$
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use the data in the following table, which lists drive - thru order acc…
$0.686$
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“between the small print and the emojis, dad is often confused by text …
B. abbreviations made by putting together the first letters of words
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determine the probability of the given complementary event. what is the…
$0.47$
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when randomly selecting adults, let m denote the event of randomly sele…
A. The probability of getting a male, given that someone with blue eyes has been selected. No, $P(M|B)$ is not the same as $P(B|M)$.
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p(a or b) indicates _______ choose the correct answer below a. the prob…
D. the probability that in a single trial, event A occurs, event B occurs, or they both occur.
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the root junc means join. what does the word adjunct mean? something th…
something that is added to another thing
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fill in the blank. p(a)+p(\\overline{a}) = 1 is one way to express the …
Complementary Rule
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fill in the blank. events that are ______ cannot occur at the same time…
mutually exclusive
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the root pens means weigh out or distribute. what does the word indispe…
not capable of being done without or given away
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the root bel means war. what does the word antebellum mean? relating to…
relating to the time before a period of armed fighting
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source: andrew carnegie. wealth, in the north american review, june, 18…
1. Andrew Carnegie, 1889 2. A Darwinian concept applied to society; in a capitalist system, the most competitive accumulate wealth. 3. Leave great fortunes to children; wait until…
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the root jur means law. what does the word jurisdiction mean? an area w…
a location over which a governing body legally has power
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the root cede means go or yield. what does the word recede mean? to com…
to move back
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4. look for relationships a student found a strong correlation between …
No, the student cannot say that young people will run marathons faster than older people because correlation does not equal causation. ### 7.
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the root cred means trust or believe. what does the word accreditation …
an official recognition of quality
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the root fic or fac means do or make. what does the word facilitate mea…
to cause something to be more efficient
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the root bene means good. what does the word beneficiary mean? a person…
a person who receives a profit or an advantage
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1. essential question how can you evaluate the goodness of fit of a lin…
1. Evaluate using correlation coefficient ($r$), coefficient of determination ($r^{2}$), and residual analysis. 2. Interpolation estimates within known data range; extrapolation e…
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the root greg means group. what does the word egregious mean? untrustwo…
standing out from the rest in a particularly bad way
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the root chron means time. what does the word synchronize mean? to arra…
to arrange things to happen at the same moment
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the root dict means say or declare. what does the word diction mean? th…
the manner and style in which words are chosen for use in speech or writing
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the root min means small. what does the word diminish mean? to reduce i…
to reduce in importance or size
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fill in the blank. when using the ______ always be careful to avoid dou…
addition rule
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the root jur means law. what does the word perjury mean? the tactic of …
the crime of lying under oath
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the root mal means bad or evil. what does the word malady mean? a pleas…
an illness
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the root junc means join. what does the word disjunction mean? the stat…
the state of being disconnected
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the root pens means weigh out or distribute. what does the word dispens…
a place where medicine is prepared and sold
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in 6 - 8, use the line plot. ages of soloists in an orchestra 6. a new …
6. Mean: Decreases. Median: Changes slightly or remains approximately the same. Mode: Remains the same. 7. The distribution becomes more symmetric. 8. Dropping the two youngest so…
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identify the class width for the given frequency distribution. weight (…
4
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a friend flips a coin 50 times and says that the probability of getting…
D. This is an estimated probability because it is based on an experiment.
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find the class midpoint of the fico score interval 550 - 599. | fico sc…
$574.5$
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a survey of statistics students asked the students for their favorite m…
Blues
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a table that lists data values along with their counts is _. (1 point) …
a frequency distribution
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a sample value that lies very far away from the majority of the other s…
an outlier
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a survey of statistics students asked the students for their favorite i…
Vanilla
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let a denote the event of placing a $1 straight bet on a certain lotter…
$P(A)\approx0.00023$ $P(\overline{A})\approx0.99977$
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identify the smallest numbers that can actually belong to a class in a …
A. lower class limit
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a survey of statistics students asked the students for their favorite f…
Kentucky Fried Chicken
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a student wants to simulate 36 birthdays, but she does not have a calcu…
A. No. People generally favor some numbers over others so that they don't select numbers with a process that is truly random.
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a recent survey determined the iq score of a random selection of reside…
19
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assume that 2600 births are randomly selected and 1310 of the births ar…
B. The number of girls is neither significantly low nor significantly high
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in a particular survey of internet users, 3647 respondents say that the…
B. Yes, because the probability of a respondent using social media is greater than 0.5.
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section 1: excerpt 1: \i have heard it asserted by some, that as americ…
Some people think America's past success with Britain means the connection is needed for future happiness, but the author says this is a false argument.
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in a particular survey of internet users, 3647 respondents say that the…
$0.736$
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if there is a 10% chance that a bowler will get a strike, what is the c…
90
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there is a 60% chance of rain for a given day. what is the chance that …
B. 40%
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dan works at a local coffee - shop. on remembrance day, which is a stat…
$168.75$
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directions: use the passage to answer each question. 1. which best expl…
1. c. to inform readers about the history of the Constitution 2. a. in a way that is fair 3. b. completely, d. exclusively 4. d. The Amendments 5. b. Writing the Document 6. a. in…
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what did thomas paine mean when he said, these are the times that try m…
The Patriots need to make a long - term commitment to fight
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how did john d. rockefeller horizontally integrate his monopoly in 1882…
He created a trust that controlled ninety percent of the nation's oil refineries.