統計與機率
資料分析、機率分佈、假設檢定與統計方法。
-
what is the meaning of pull the wool over someones eyes? to completely …
to completely fool someone
-
what is the meaning of between a rock and a hard place? facing two diff…
Facing two difficult choices
-
what is the meaning of sharp as a tack? witty and intelligent in an unc…
witty and intelligent
-
what is the meaning of go for broke? to do anything for someone or some…
to take a big risk
-
what is the meaning of let bygones be bygones? face a problem head - on…
Forget about bad things in the past.
-
what is the meaning of one rotten apple spoils the whole barrel? people…
a bad person can make a group do bad things
-
question 16 of 25 let event ( a = ) the animal is a bird. let event ( b…
A. {canary, seagull, crow, mosquito}
-
compare the probability of winning when playing regular defense with th…
A. \( P(\text{win}|\text{regular}) = 0.76\), \(P(\text{win}|\text{prevent}) = 0.58\). Conclusion: You are more likely to win by playing regular defense.
-
what is the meaning of at a crossroads? on a street corner at a point w…
at a point where a decision must be made
-
compare the probability of winning when playing regular defense with th…
The probability of winning with regular defense ($0.76$) is higher than with prevent defense ($0.58$). So, regular defense is more likely to result in a win.
-
what is the meaning of blessing in disguise? someone or something that …
A problem that leads to something good.
-
question 14 of 25 this table shows how many sophomores and juniors atte…
B. 0.31
-
what is the meaning of still waters run deep? family is more important …
quiet people are often serious thinkers
-
question 13 of 25 let event ( a ) = you buy a bottle of sunscreen on fr…
C. You have chicken for dinner on Sunday.
-
the table shows the probabilities of certain prizes in a restaurants co…
It increases the mean value of the prizes.
-
what is the meaning of every cloud has a silver lining? something good …
It means that something good comes from every problem.
-
question 12 of 25 this venn diagram shows sports played by 10 students.…
B. \(\frac{4}{5}\)
-
what is the meaning of spur of the moment? temporary sudden and unplann…
The meaning of "spur of the moment" is closest to "sudden and unplanned".
-
question 11 of 25 a and b are independent events. p(a) = 0.50 p(b) = 0.…
A. 0.50
-
what is the most reliable source for data on u.s retirement age trends?…
The US Bureau of Labor Statistics (BLS)
-
whats the best way for any speaker to create a instant bond with the au…
d. tell a humorous story about public speaking
-
question 9 of 25 the data give the average number of days in may that a…
C. \(0.20\), because \(6\) of the \(30\) days in San Antonio were clear
-
bismouth - 210 bismuth - 210 is an isotope that radioactively decays by…
\(77.35\)
-
bryant surveys people at his company to find out when they prefer to go…
\(\frac{30}{75}\)
-
read the source of the allusion. in one of aesops fables, a fox tries t…
finding fault with something that you can't have
-
read the source of the allusion. in the folktale, chicken little is hit…
a person who spreads scary but false news
-
read the source of the allusion. in the fairy tale umpelstiltskin,\ a m…
making something good from nothing
-
question 9 of 25 the data give the average number of days in may that a…
None of the options are correct. The correct probability is \(0.2\), because \(6\) of the \(30\) days in San Antonio were clear.
-
read the source of the allusion. in the book the adventures of pinocchi…
The allusion is to *The Adventures of Pinocchio*.
-
question 8 of 25 kellie randomly chooses a number from 1 to 10. what is…
A. \(\frac{1}{5}\)
-
question 7 of 25 you roll two number cubes. let event ( a=) the number …
C. The probability that the sum is 11, given that the first number cube shows a 6
-
read the source of the allusion. in ancient greece, soldiers from the c…
simple and tough
-
question 6 of 25 at a car and truck dealership, the probability that a …
D. 0.22
-
read the source of the allusion. the book dr. jekyll and mr. hyde tells…
The allusion is from the book *Dr. Jekyll and Mr. Hyde*. It means Hanson has two contrasting behaviors or personalities (like Dr. Jekyll's good side and Mr. Hyde's bad side).
-
read the source of the allusion. in greek mythology, the phoenix lives …
The allusion is to the Greek myth of the phoenix. The phoenix burns to ashes and then rises again. So, "rise from the ashes" means to come back after being destroyed.
-
read the source of the allusion. in greek mythology, the gods send pand…
a source of many problems
-
question 5 of 25 this table shows how many sophomores and juniors atten…
A. \(0.55\)
-
the times of all 15 year olds who run a certain race are approximately …
\(0.15\%\)
-
read the source of the allusion. in his novel lost horizon, james hilto…
a perfect place
-
question 5 of 25 this table shows how many sophomores and juniors atten…
A. \(0.55\)
-
question 4 of 25 a pet store sells mice, reptiles, and birds. let event…
B. The probability that a customer buys either a mouse or a bird is 15%.
-
read the source of the allusion. in the wizard of oz, dorothy finds her…
The allusion refers to the idea of being in a new, unfamiliar, and extraordinary place, similar to Dorothy's experience in *The Wizard of Oz* when she leaves Kansas (her ordinary …
-
question 3 of 25 you spin a spinner with 5 sections: 1 yellow (y), 1 pu…
A. {Y, P, R, B, G}
-
question 2 of 25 a and b are independent events. ( p(a)=0.80 ) and ( p(…
A. 0.08
-
question 10 of 10 a taste test asks people from texas and california wh…
C. Yes, they are independent because \(P(\text{California})\approx0.55\) and \(P(\text{California}|\text{brand A})\approx0.55\)
-
what does the root astro mean? earth or rock star the study of somethin…
star
-
look at the roots below. which one means own or self? auto port spec te…
auto
-
garth is packing boxes with books. the list shows how many books are in…
C. The mean number of books to a box is 11.
-
question 8 of 10 a survey asks teachers and students whether they would…
B. No, they are not independent because \(P(\text{student})\approx0.82\) and \(P(\text{student}|\text{pirate})\approx0.94\).
-
find the probability of exactly two successes in five trials of a binom…
\(31.3\%\)
-
question 10 of 10 ethan rolls a 6 - sided number cube. what is the prob…
C. $\frac{1}{2}$
-
question 9 of 10 which of the following is not a possible value for a p…
C. \(\frac{11}{10}\)
-
this venn diagram shows the pizza topping preferences for 9 students. l…
B. \{Maria, Zack\}
-
question 7 of 10 a bag has 5 balls: 1 red (r), 1 green (g), 1 yellow (y…
B. {R, G, Y, B, O}
-
mrs. piper is driving anna, jo, and mai home from school. all of them w…
A. Put each person's name on a separate piece of paper in a bag. Randomly draw the winning name. D. Roll a number cube. If it lands on 1 or 6, Anna wins. If it lands on 2 or 5, Jo…
-
helen spins two multicolored spinners. • the probability that the first…
\(\frac{7}{20}\)
-
question 5 of 10 a coin has 2 sides: heads (h) and tails (t). a bag has…
A. \(\{HR, HG, HY, HB, TR, TG, TY, TB\}\)
-
a taste test asks people from texas and california which pasta they pre…
A. 0.45
-
find the standard deviation, \\( \\sigma \\), of the data. 78, 45, 73, …
$10.4$
-
5.1.3 quiz: probability let event ( a = ) the place is a city. let even…
B. \(\frac{4}{7}\)
-
just a few years ago, all of the trees of the forest grew tired of huma…
D. The trees symbolize nature in general; they're not meant to be seen as realistic.
-
question 5 of 10 a medical company tested a new drug on 100 people for …
A. \( P(\text{side effects|child}) = 0.40\), \(P(\text{side effects|adult}) = 0.12\)
-
the conditional relative frequency table below was generated by column …
The value of \(B\) is not similar to the value of \(F\).
-
question 4 of 10 this table shows how many students from two high schoo…
D. 0.55
-
a survey asks teachers and students whether they would like the new sch…
C. "Pirate" is more popular with students, but "moose" is more popular with teachers.
-
think about the function ( f(x)=3 - 2x ). what does the notation ( f(0)…
1. \(f(0)\) means substitute \(x = 0\) into the function \(f(x)\). 2. \(f(0)=3\) 3. The special name of \(f(0)\) is the \(y\) - intercept.
-
find the variance of the data. 78, 45, 73, 66, 61, 67 (overline{x}=65) …
\(109\)
-
while researching a topic, a student has taken the following notes: • t…
A. Each day in the French Republican calendar was given a name honoring an aspect of rural life; for example, a day in Brumaire was named for an animal, the goose.
-
question 2 of 10 a survey asked 50 students if they play an instrument …
A. Option Text
-
let a and b be two independent events. complete the paragraph. the cond…
The conditional probability of \(A\) given \(B\) is the same as the probability of \(A\). The conditional probability of \(B\) given \(A\) is the same as the probability of \(B\).
-
question 10 of 10 which situation involves a conditional probability? a…
C. The probability that your team wins the championship given that you go to the finals
-
question 9 of 10 you play two games of golf. let event ( a ) = you win …
A. The probability that you win the second game given that you win the first game
-
question 8 of 10 a group of 10 students participate in chess club, kara…
A. \(\frac{4}{6}\approx0.67\)
-
question 7 of 10 a and b are independent events. p(a) = 0.30 p(b) = 0.4…
A. 0.30
-
question 6 of 10 in littletown, the probability that a baseball team go…
C. \(0.10\)
-
which is the marginal relative frequency for the people who do not like…
$\frac{100}{400}$
-
a normal distribution of data has a mean of 90 and a standard deviation…
B. - 1.4
-
a cafeteria kept track of the type of milk students chose at lunch toda…
The first blank (plain milk for 8th - grade) is \(56\%\) and the second blank (chocolate milk for 8th - grade) is \(44\%\).
-
the following text is from anne spencers 1922 poem \translation.\ we tr…
C. It represents a strong contrast to the speaker’s friend’s current experience of tranquility.
-
what is the definition of situational irony? a situation in which an au…
C. a situation in which what happens is the opposite of what was expected to happen
-
overview of taxpayer data the table shows the breakdown of income, taxe…
\(79500\)
-
which is the best definition of satire? writing that employs irony to a…
writing that uses critique to draw attention to an issue by exaggeration or irony
-
which is a distinguishing feature of claims? (1 point) they express per…
They are debatable or arguable.
-
find the underlined word in each sentence. match it with a sentence who…
- The underlined word "cacophony" in "The malfunctioning car engine let out a cacophony of sounds before it completely broke down." matches with "The plane noise bothered the tena…
-
which choice describes a morpheme? (1 point) a morpheme is a word that …
A morpheme is a small unit that has its own meaning.
-
word meanings quick check drag each item to identify whether it is the …
Noun Form: vindication, dissimulation Verb Form: vindicate, dissimulate
-
question 15 1 pts ch 18 in assessing the validity of any test of hypoth…
examine the probability model that serves as a basis for the test by using exploratory data analysis on the data, determine exactly how the study was conducted, determine what ass…
-
name literary analysis: humorous essay practice a humorous essay is a s…
1. Understatement 2. Hyperbole 3. Understatement
-
ch 18 in a test of hypothesis for a mean, which of the following is cor…
The test requires that the sample mean is normally distributed; this requires that either the population distribution is Normal or the sample size exceeds 30.
-
what is the purpose of interpreting literature and other texts? o to pr…
to develop an understanding of an action or way of behaving as having a particular meaning or significance
-
ch 18 a \false negative,\ in which no effect is detected when in realit…
a Type II error.
-
question 11 1 pts ch 18 before conducting a test of significance, which…
- **Question 11**: All the checked options (Set an appropriate significance level, Inspect the data you have collected for outliers or other issues that might challenge the assump…
-
question 8 1 pts ch 18 if we reject ho when in fact ho is true, this is…
- Question 8: Type I - Question 9: True - Question 10: sampling error
-
name date creating dot plots sheet 2 1) this data shows the number of b…
Mode books read: \(5\) Median books read: \(4.5\) Range: \(10\)
-
which phrase best describes the focus of active - listening techniques?…
listening for understanding
-
ch 18 when designing a test of inference, which of the following will i…
- Question 6: the members of the soccer team can't be considered a random sample of all students. - Question 7: the probability of a Type I Error.
-
ch 18* the most important condition for sound conclusions from statisti…
- First question: the data can be thought of as a random sample from the population of interest. - Second question: power.
-
ch 18* a writer in a medical journal says: “an uncontrolled experiment …
there is no control group, so the improvement might be due to the placebo effect or to the fact that many medical conditions improve over time.
-
ch 18 if the probability that you fail to reject the null hypothesis is…
0.80
-
what does ( p(b|a) ) represent? choose the correct answer below. a. the…
B. The probability of event B occurring after it is assumed that event A has already occurred