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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using statistical measures to compare probabilities the table compares …
The range of the sums is the same for both sets of data.
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the histogram shows the number of morning customers who visited north c…
The north restaurant can expect to have the same number of morning visitors as the south restaurant.
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determining the best measures for comparing distributions the histogram…
What is the best measure of center for comparing the number of visitors to the 2 restaurants? Median What is the best measure of variation for comparing the distribution of the nu…
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the table shows the yearly earnings, in thousands of dollars, over a 10…
The distribution of earnings for wage earners is more symmetric than the distribution of earnings for the self - employed.
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if elected, i will be an instrument of reform on wall street, josh ryan…
3. a means by which something is done: Some argue that the media is an instrument for social change.
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comparing data sets represented in a table the table shows the monthly …
The range of data usage for the primary phone is 0.28 gigabytes. The range of data usage for the secondary phone is 0.73 gigabytes. The median data usage of the secondary phone is…
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15. given a set of data: 265,263,269,259,267,264,253,275,264,260,273,25…
a. Stem - and - leaf plot: Stem | Leaf; 25 | 3 7; 26 | 0 3 4 4 5 7 9; 27 | 3 5; 29 | 1 b. Mean $\approx270.08$, Median = 264.5 c. Range = 38 d. Box - plot: Min = 253, $Q_1 = 261.5…
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the box plots show the distributions of daily temperatures, in °f, for …
Both distributions are skewed right. The median and IQR would be the best measures to compare the data.
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the box plots represent the birth weights, in pounds, of babies born fu…
The median female birth weight is less than the median male birth weight. The range of female birth weight is greater than the range of male birth weight. The birth weight measure…
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college means any education beyond high school that leads to financial …
Going to college would mean a step towards financial stability for me. With 70 percent of jobs in the next decade requiring postsecondary education, it provides multiple career - …
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four math classes recorded and displayed student heights to the nearest…
The first histogram (from the left) can be described as skewed left as it has a long tail extending to the left while the majority of the data is concentrated on the right side.
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tiles with the letters a, b, c, d, e, f, g, and h written on them are p…
The number of possible outcomes is 8. $P(\text{vowel})=\frac{1}{4}$ Choosing one letter at random is a simple event.
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a typical platoon consists of 20 soldiers. if there are 27 soldiers ava…
$588003$
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an amusement park reports that the probability of a visitor riding its …
C. \(P(\text{largest or smallest}) = 0.30 + 0.20 - 0.15\)
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a month of the year is chosen at random. what is the probability that t…
$\frac{5}{12}$
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in a standard deck of cards there are four suits: spades, clubs, hearts…
The Venn - diagram where circles A and B overlap, but circles A and C do not overlap and circles B and C do not overlap.
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a bag contains eleven equally sized marbles, which are numbered. what i…
$\frac{6}{11}$
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students in a class were surveyed about the number of children in their…
$\frac{1}{50}$
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question 9 (02.01 mc) a study was done by an online matchmaking company…
The range represents the number of users each month for 12 months.
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a bag contains eleven equally sized marbles, which are numbered. two ma…
The closest option based on the correct probability - calculation method for independent events (even though the exact answer is not in options) is $\frac{24}{121}$. So the answer…
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which events are independent? select three options. roll a number cube,…
A. Roll a number cube, and then roll the same number cube again B. Flip a coin, and then flip the coin a second time D. Draw a card from a deck, replace it, and then draw a second…
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which scenario depicts two independent events? the school play opens to…
The school play opens tonight and it is raining.
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under the best conditions, a sprout has a 40% probability of blooming. …
16 percent
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the probability of event a is 0.48, the probability of event a and b is…
D. 0.62
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every person has blood type o, a, b, or ab. a random group of people ar…
The probability that a randomly - chosen person from this group has type B is $\frac{3}{25}$. The probability that a randomly - chosen person from this group has type AB is $\frac…
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josiah takes a multiple - choice quiz that has three questions. each qu…
$\frac{1}{125}$
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events a and b are mutually exclusive. events b and c are non - mutuall…
The fourth Venn - diagram (from the left) where A and B are separate (non - intersecting) and B and C are intersecting.
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this week in school, there is a 75 percent probability of having a fire…
A. No, because $P(F\cap T) eq P(F)\cdot P(T)$.
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the names of the months are each written on a slip of paper. if a slip …
ends with an r and has five or fewer letters
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a spinner contains four equally shaded areas, as shown below. louise sp…
$P(\text{both green})=\frac{1}{16}$
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a pharmaceutical company collects data on the side effects participants…
5 percent
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a survey asked 300 students to choose their favorite type of movie. the…
| Type of movie | Percentage | |--|--| | Adventure | 9% | | Horror | 18% | | Science fiction | 38% | | Animation | 35% |
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which events are independent? check all that apply. each number 1 throu…
The independent events are: - A number cube is rolled and a spinner is spun. Henry rolls a multiple of 2 and lands on a red portion of the spinner. - Two cards are randomly chosen…
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read the dictionary entry for the word forged. forge, verb. 1. to creat…
Cannot be determined without passage context.
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the probability for event a is 0.3, the probability for event b is 0.5,…
No, because P(A) times P(B) is not equal to P(A and B)
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applying the multiplication rule a bag contains the following fourteen …
$P(\text{green})=\frac{5}{14}$ $P(\text{red})=\frac{1}{7}$ $P(\text{green and red})=\frac{5}{98}$
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multiple choice question what word root means flesh? o sarco- o tetan- …
sarco-
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question 1 3 pts match each prefix to the correct meaning: pre- choose …
Pre -: meaning "before"... (Precocious) Ob -: meaning "toward" or "against"... (Obsequious) Ap -: meaning "to" or "toward"... (Apprehension)
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assignment 4: who said it? read the following statements and determine …
1. Communist. Explanation: Calls for workers to overthrow capitalists and take ownership of production means. 2. Capitalist. Explanation: Based on supply - and - demand laws for l…
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multiple choice question the prefix sarco- means _. o flesh o muscle o …
B. muscle
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what role do government agencies play in a mixed market economy? they r…
They regulate some aspects of production and distribution.
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what is the meaning of the root word syn-? between hidden together over…
C. Together
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multiple choice question what word root means flesh? o erg- o sarco- o …
sarco-
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fill in the blank question the root word that means net is . need help?…
dicty-
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multiple choice question what root word means something inserted? o erg…
laten-
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directions: answer the following multiple choice questions. highlight t…
1. B. Extreme frustration and annoyance 2. C. Scolded and chastised 3. B. Rotten and decayed
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multiple choice question the root word myo- means ______. o flesh o sti…
O muscle
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multiple choice question what root word means together? o arg- o syn- o…
B. syn-
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which root word means rind or peel? -lemm -gram -tonic
O -lemm
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multiple choice question the prefix sarco- means ______. o skin o muscl…
B. muscle
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what is the meaning of the root word laten- (as in latent period)? o mo…
Hidden
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1. if the growth rate is 4%, what is the growth factor? 1.04 2. if the …
1. $1.04$ 2. $0.92$ 3. $1.2\%$ 4. $13\%$ 5. The ratio of consecutive profit - values is constant ($1.1$). 6. $1.1$ 7. $P(t)=2\times(1.1)^t$ 8. a. $10\%$ b. growth rate 9. a. $\$18…
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what is the relationship between risk and return? a higher risk often m…
A. A higher risk often means a higher return.
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what is the meaning of the word root iso- (as in isotonic)? o equal o t…
Equal
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a group of 7 students was asked, \how many hours did you watch televisi…
$9.7$
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which scenario depicts two independent events? a teacher is calling on …
The girls' basketball team is playing against the boys' basketball team. The coach chooses a captain for the girls' team and then chooses a captain for the boys' team.
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multiple choice question what root word means muscle? o syn- o laten- o…
myo-
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what is the meaning of the root word inter- (as in intercalated disc)? …
C. Between
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multiple choice question the root word -lemm means _______. together be…
C. rind
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the prefix means over or more. need help? review these concept resource…
hyper -
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bell work (1 - 3) 1. define personification in your own words a. giving…
1. A. Giving human qualities to animals or objects 2. B. "The streetlamp thought it would short out for happiness." 3. A. Human courage and survival
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multiple choice question what root word means hidden? ○ myo- ○ laten- ○…
B. laten-
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multiple choice question which prefix means bundle? o erg- o iso- o int…
D. fasc-
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multiple choice question which word root means equal? o syn- o inter- o…
C. iso-
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what is the meaning of the root word erg- (as in the term synergist)? o…
Work
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multiple choice question what root word means something inserted? o erg…
laten-
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multiple choice question. what root word means between? o syn- o hyper-…
C. inter-
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what is the meaning of the word root hyper-? over hidden equal stretche…
Over
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what is the meaning of the root word fasc-? o equal o bundle o together…
Bundle
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multiple choice question what prefix means work? org- laten- tetan- sar…
A. erg-
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a day of the week is randomly chosen. what is the probability of choosi…
$P(\text{Monday})=\frac{1}{7}$ $P(\text{starts with }S)=\frac{2}{7}$ $P(\text{Monday or starts with }S)=\frac{3}{7}$
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question 10 (1 point) select all transition words that show relationshi…
until, meanwhile, simultaneously, subsequently, eventually
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question 4 (3 points) which of the following are benefits of private st…
E. All of the above
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which of the following verbs means \to study\? escuchar empezar estudiar
Estudiar
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consider a single spin on the spinner shown below. which events are mut…
landing on an unshaded portion and landing on 2, landing on a shaded portion and landing on 3, landing on a shaded portion and landing on an unshaded portion
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check your understanding 1. kasey noticed that the distribution of cand…
\(S = 3M - 5\) ### 2. #### a.
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when should a direct quote be used in your research paper? a. when the …
C. When the exact wording of the quote is important
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28. what does the prefix re - mean in ebuild\? a) build again b) build …
28. a) Build again 29. b) Without hope 30. a) Not happy
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what is a key objection to emotivism according to the transcript? emoti…
D. All options provided
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using precise language quick check use the sentence to answer the quest…
omnivores
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question 1 - 6 you have 2 hours to do homework tonight you spend x hour…
The point represents values for $x$ and $y$ which indicate that you finished your homework in 2 hours or less.
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in her memoir, dr patel described the laboratory as a place of both dis…
B. apprehension
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using the city festival, lanterns illuminated the streets, casting a wa…
B. mystical or uncanny
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read the following sentence from passage 2, paragraph 4: he was sure to…
B. created
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read the following sentence from passage 1. he was able to find his che…
invented (assuming the last - option in the blurry list is "invented" as it is the most appropriate synonym for "devised" among common English - language word - meaning options)
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bell ringer - oct 14 use standard normal distribution to find the areas…
1. $0.9015$ 2. $0.7422$ 3. $0.9473$ 4. $0.0222$ 5. $0.0630$ 6. $0.2682$
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1 which of the following are religious systems meant to do? a distract …
B. Answer questions about human existence
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read the following excerpt from passage 1, paragraph 1. select the exce…
The excerpt "mixture of fun and fear, satisfaction and regret in it" reveals that the word countenance means "facial expression".
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2 “my dear, where did you get it? twenty - five dollars! jo, i hope you…
B. reckless
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2) from tax records, it is relative easy to determine the amount of liq…
1. D. This could be an example of a correlation caused by a common cause because both activities are highly correlated with average family income and average income varies widely …
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fables are meant to teach us. what do you think this fable is meant to …
# Breve explicación: Las fábulas suelen transmitir enseñanzas morales. Sin conocer la fábulas específica, entre estas opciones, "Ser feliz con quién eres" es una enseñanza común e…
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in the preamble, \promote the general welfare\ means that its the gover…
well - being of all citizens
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unit 2 - exploring two variable data hw 2 - scatterplots and correlatio…
a) There is no clear - cut explanatory variable in a strict causal sense. But for the context of this study, the height of women can be considered the explanatory variable and the…
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instead, he read passages from his books to them, and sometimes reenact…
C. portions
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the logbook entries of travelers tell about events in the sequence in w…
Date: 10 - 1 - 25 Entry: Today, as we soared through the vast expanse of space, a truly exhilarating moment occurred. As we passed the moon, its craters and desolate surface came …
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beginner warm - up 10.14 - 15.2025 direction: read and answer the quest…
1. A typical day means a normal or usual day with common - occurring activities. 2. Things that I do everyday are: wake up, brush my teeth, have breakfast, work or study, eat lunc…
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argument means : a tangible symbol signifying approval or distinction a…
an assertion offered as evidence that something is true
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which phrase from the paragraph helps to explain what \derived\ means? …
B. get that energy from
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the weather report states that the probability it will rain on wednesda…
18 percent
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but the classic often brings the whole racing season to a perfect concl…
B. finish