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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the probability that a randomly selected 40 - year - old male will live…
(a) $0.993491$ (b) $0.9747$ (c) $0.0253$, and it would be unusual.
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the first computerized spreadsheet, dan bricklins visicalc, improved fi…
C. adjustments. Prior
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read the excerpt from dr martin luther king jrs i have a dream speech. …
mountain of despair
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5 describe the shape of the distribution shown in the histogram which d…
B. Skewed right with a center near 200 lumens.
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based on the histogram, what fraction of the total population of the ci…
A. $\frac{35}{65}$
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what is the difference between the number of students who did more than…
A. 6
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stem leaf 0 9 1 3 7 9 2 0 3 6 3 1 2 5 5 7 4 4 6 7 7 5 0 3 6 2 2 7 6 8 9…
# Explanation: ## Step1: Count students who did more than 36 sit - ups Count the number of data points in the stem - and - leaf plot for stems 4, 5, 6, 7, 8, 9. There are 4 + 2+2 …
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the stem and leaf plot shows the numbers of sit - ups a group of studen…
A. 6
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lives of the noble greeks and romans by plutarch (excerpt) plutarchs li…
Adding dramatic dialogue and character - development to the historical events.
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each of 6 students reported the number of movies they saw in the past y…
$14.2$
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a random sample of teenagers were surveyed and asked about their favori…
13%
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part c on the histogram, why is there an interval with no bar on it?
There are no data - points in that interval, so the frequency is zero.
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all the students in ms. carters class reported the number of pets they …
Part A: 23 Part B: The number of students who have 0 - 4 pets at home is the highest among all the groups of students classified by the number of pets.
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a group of 7 students was asked, how many hours did you watch televisio…
$12.7$
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3 which quote best supports the idea that democracy can be adapted to t…
A. "It sounds kind of obvious to us, but it hasn't always been like that everywhere in the world today"
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which of the dot plots shows a symmetric distribution?
C
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for each month of the year, taylor collected the average high temperatu…
A. 55, 60, 60, 63, 64, 65, 65, 71, 83, 87, 88, 88, 89, 93
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read the following passage from “the seventh man.” but even if it comes…
C. The suffix along with the root word salve means "the result of being saved."
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what is the meaning of the latin suffix -tion? a. the action or result …
A. the action or result of
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matching types of taxes introduction: match the example on the left wit…
1. Tax paid annually on earnings each April - Income tax 2. Tax meant to discourage the purchase of a product - Excise tax 3. Tax paid by employees for Social Security and other p…
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which are two characteristics of direct distribution that differ from f…
B. Direct distribution is also known as a zero level channel. D. The manufacturer controls all aspects of distribution.
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directions: answer the following questions in your own words using the …
11a.A: Railroads enabled faster travel and business growth. 11a.B: Railroads created high demand for steel products. 11a.C: Used vertical integration and aggressive tactics. 11a.D…
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which sales channel has been opened to manufacturers because of digital…
B. Direct - to - Consumer
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read the quote. what does issue mean as it is used in this context? a a…
A. an important topic for discussion
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read the quote. what is the meaning of rights as it is used in this con…
C. the privileges or freedoms that individuals are entitled to
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read the quote. what is the meaning of city - state as it is used in th…
D. an independent urban area with a significant population and its own government
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he and ms. ellis took on amble through these woods at the end of summer…
Walk
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paragraphs 22 - 27 questions 4. write: what might elenas books symboliz…
For "What might Elena's books symbolize?": Elena's books could symbolize her dreams, aspirations, and a means of escape from her current living - environment. They might represent…
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a cookie is randomly drawn from a box with 4 small cookies, 13 medium c…
0.52
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resolution is a synonym for conclusion; both are a synonym for end of s…
True
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which statements are examples of how ancient romes influence is evident…
A. The English words antique and ancient come from the Latin word antiquus, which means "old." B. Concrete is a common material in the construction of sidewalks and buildings. C. …
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which statements are examples of how ancient romes influence is evident…
A. The English words antique and ancient come from the Latin word anti - qua, which means “old.” B. Concrete is a common material in the construction of sidewalks and buildings. C…
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review vocabulary 1. write a sentence using iroquois confederacy 2. wri…
1. The Iroquois Confederacy was a powerful Native - American alliance that influenced the colonial power dynamics. 2. The colonies' militia was crucial for local defense against e…
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find the range of this data set: 21, 34, 43, 48, 37, 23, 25, 26
27
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alicia resented the fact that she had to sit through the same training …
2. grudgingly
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when they retired, my grandparents converted their home to a bed and br…
3. lodge
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small business a small business owner determines that the profit p in d…
a. The quadratic equation is $x^{2}+15x - 25000=0$. b. The selling price $x\approx150.79$ dollars. c. The selling price of the item should be approximately $\$150.79$ to earn a pr…
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find the range of this data set: 41, 45, 52, 42, 40, 44, 53, 56
\(16\)
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1 which evidence best supports the idea that the purpose of a democracy…
A. Democracy means 'rule by the people'
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find the range of this data set: 17, 23, 24, 26, 30, 20, 18
13
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choosing an exponential model and using it to make a prediction (a) whi…
(a) Figure 1 (b) $361.26$
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eyeglassomatic manufactures eyeglasses for different retailers. the num…
a) The random variable \(X\) is the number of days it takes to fix defects in a pair of eyeglasses. b) Right - skewed. c) \(4.514\) days, \(\mu\) d) \(3.461\) days, \(\sigma\) e) …
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inequalities vs. equations what does it mean to solve an inequality? wh…
8 is a solution of the inequality $\frac{1}{2}x + 2\leq6$.
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a local bakery has determined a probability distribution for the number…
- Probability of selling 15 cheesecakes: $0.41$ - Probability of selling at least 10 cheesecakes: $0.65$ - Probability of selling 5 or 15 cheesecakes: $0.57$ - Probability of sell…
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find the range of this data set: 35, 31, 22, 27, 40, 36, 22
18
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writing use the distributive property to solve the equation below. use …
8
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suppose that the random variable x, shown below, represents the number …
a) $0.0477$ b) $0.0671$ c) $0.0194$
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find the range of this data set: 28, 24, 32, 45, 34, 28
21
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5.1 basics of probability distributions. compute the mean and standard …
a) | $X$ | $P(X)$ | |----|----| | - 112.10 | 0.9 | | 637.90 | 0.1 | b) - 37.10 dollars c) On average, the customer loses $37.10$ dollars by purchasing the extended - warranty.
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spotlight benchmark: ela.10.r.1.2 - analyze and compare universal theme…
1. This requires individual reading and research for word - identification and synonym - finding. 2. Some possible lines could be: "The dead reign there alone" (line 57), "All tha…
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karl and bert wanted to start saving more money, so they decided to hav…
The double - line graph should have two lines, one for Karl and one for Bert, with points plotted according to the above - mentioned data points for each year.
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5.1 basics of probability distributions. compute the mean and standard …
a) 50 b) 1.43 c) 1.03
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the data below show the weights, in pounds, of a group of professional …
18
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true or false question true or false: often, textbooks will have a buil…
True
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chowdary valluru 21 minutes ago bell ringer - sep 30 question 1) the ra…
Question 1: a) $0.036$ b) $0.496$ c) $0.077$ d) $0.491$ Question 2: a) $0.035$ b) $0.892$ c) $0.994$
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trenton plays a game with a biased coin with $p(heads)=0.63$ and $p(tai…
Probability - distribution table: | $x$ | $P(x)$ | | ---- | ---- | | - 8 | 0.63 | | 13 | 0.37 | Expected profit per game: -$0.23$ Standard deviation: $\$10.14$
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monica was hired to analyze the salaries of the 685 employees of a comp…
A box plot should be chosen. A dot plot may become cluttered with 685 data - points and may not clearly show the median, lowest, and highest values at a glance. A box plot, on the…
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variable. duan has basketball practice two days a week. ninety percent …
The probability - distribution table: | $x$ | $P(x)$ | | ---- | ---- | | 2 | 0.9 | | 1 | 0.06 | | 0 | 0.04 | The expected number of practices attended per week is $1.86$. The stan…
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this table shows jills math quiz scores. what is the minimum score she …
90
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the regression equation (y = 3.648(1.182)^{x}) approximates the cost to…
$7.12$ (corresponding to the first option)
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mr. sanders hosts a spoken - word open mic night each month, where anyo…
Mr. Sanders hosted a total of 18 open mic nights. Of these, there were 11 nights with fewer than 9 performers. So, Mr. Sanders's statement is correct.
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kate and her little brother have a lemonade stand. this list shows how …
$8\frac{3}{4}$ cups
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kira keeps track of how much time she spends walking each morning. her …
16
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complete the probability distribution table. probability distribution t…
$P(0)=\frac{1}{3}$, $P(1)=\frac{1}{3}$, $P(2)=\frac{1}{3}$ Expected value: 1 Standard deviation: $\sqrt{\frac{2}{3}}\approx0.82$
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ernie and lori are playing a game. the table shows their scores for 5 t…
The medians are equal.
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10) the graph models the total cost of renting a bike. what is the y - …
$5$ ### 11
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which statement is not true about the data set shown? 66, 89, 90, 55, 9…
The mean is 79.
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a cbs news poll conducted june 10 and 11, 2006, among a nationwide rand…
P(Democrat) = 0.3625 P(worse) = 0.4593 P(worse|Democrat) = 0.5805 P(Democrat|worse) = 0.4582 P(Democrat and worse) = 0.2105
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chapter 4.3 homework score: 29/42 answered: 24/33 question 25 0/1 pt 2 …
$\frac{47}{64}$
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the box plot shows the number of sit - ups done by students in a gym cl…
44
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the eye color for 30 students in a statistics class was recorded. the c…
| Blue | Brown | Green | Hazel | Gray | |------|-------|-------|-------|------| | 0.27 | 0.33 | 0.20 | 0.17 | 0.03 |
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four gardeners record the weight, in pounds, of 5 pumpkins they grew. w…
C. The range of weights for Greg's pumpkins is the least.
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chapter 4.3 homework score: 28/42 answered: 23/33 question 24 0/1 pt 2 …
$\frac{20}{30}=\frac{2}{3}$
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which best describes the association between variables x and y? variabl…
C. Weak Negative
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chapter 4.3 homework score: 27/42 answered: 22/33 question 23 0/1 pt 2 …
$\frac{5}{76}$
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5.1 basics of probability distributions. compute the mean and standard …
a. 0.02 b. 5.6
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there are six times as many whitetail deer as mule deer in the woods. i…
D. $\frac{1}{7}$
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the scatter plot shows the number of hats and scarves each knitter sold…
2
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the picture graph below displays the number of miles for each leg of a …
Yes, because the pictures do not accurately represent the proportions of the distances for each leg of the triathlon.
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a large bakery produces cakes in an assembly line. sergio noticed a pot…
A. If the defect is in every other cake, a systematic random sample could miss it completely depending on what Sergio chooses for $k$. B. A simple random sample can save time sinc…
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a large bakery produces cakes in an assembly line. sergio noticed a pot…
A. If the defect is in every other cake, a systematic random sample could miss it completely depending on what Sergio chooses for \(k\). B. A simple random sample can save time si…
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an artist kept track of the different types of ceramic pots she made. b…
# Explicación paso a paso: ## Paso 1: Calcular el total de ollas Sumamos todas las ollas: $(80 + 20+60 + 40)=200$ ollas en total. ## Paso 2: Analizar la proporción de ollas sin es…
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bob has a coin cup with four $1 tokens and two $5 tokens in it. he also…
A. \(\frac{1}{9}\)
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a concert venue offers tickets in 3 zones: orchestra, grand tier, and b…
A. Randomly select 50 tickets from each zone and invite those guests to participate in the survey.
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sams closet contains blue and green shirts. he has eight blue shirts, a…
B. \(P(B\cup S)=0.8\)
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an airline offers a certain flight once per day that usually contains a…
A. A simple random sample might result in a disproportionate number of passengers from one or more class, but a cluster sample is less likely to suffer this issue. C. Contacting a…
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question 16 5.1 basics of probability distributions. compute the mean a…
Sum of probabilities: $1$ Mean: $0.42$ Standard deviation: $0.81$
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there is 1 red gumdrop and 4 green gumdrops in a small jar. also, 2 pie…
C. $\frac{2}{25}$
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based on the article and your knowledge of the world, how have museums …
Museums in the U.S. and Europe have benefited from colonialism by acquiring a vast number of cultural artifacts through looting and other unfair means, which have enriched their c…
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a university administered a survey to all incoming students regarding l…
D. 44%
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read this excerpt from an apa - formatted paper. in addition to the gen…
C. Chang, H.N. & Romero, M. (2008, September). Present, engaged, and accounted for. The critical importance of addressing chronic absence in the early grades. National Center for …
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jeff has 4 red pens and 2 blue pens in his backpack. he also has 1 yell…
D. \(\frac{1}{15}\)
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5.1 basics of probability distributions. compute the mean and standard …
Mean ($\mu$): $8.30$ Standard Deviation ($\sigma$): $2.98$
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moths of the limberlost by gene stratton - porter (excerpt) chapter i (…
B. Greatest and minute are antonyms, so minute means small or insignificant
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question 14 5.1 basics of probability distributions. compute the mean a…
$1.9$
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read the following sentence: in many states, the law says that refusing…
unspoken
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lesson app 3.4 flying dinosaur or early bird? archaeopteryx is an extin…
1. After making the scatter - plot, the points seem to follow a positive linear trend, suggesting they may be from the same species. 2. $r\approx0.99$, which indicates a very stro…
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which opening sentence uses a question to grab the readers attention fo…
Have you ever wondered what would happen to your brain if you studied everyday?
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what evidence from the passage supports the authors bias against the go…
Should we even expect the USPS, a government agency regulated by Congress, to be efficient and profitable? (paragraph 9)
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question think about the news article excerpt you just read, and highli…
The utterances of the speakers were still of a most inflammatory character, however, and the hearers who still remained grew riotous in demeanor. The mob appeared crazed with a fr…