Estadística
Análisis de datos, distribuciones de probabilidad y pruebas de hipótesis.
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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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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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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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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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the wellness benefits of the great outdoors by andrew avitt office of c…
D. provided
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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…
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a large city offers many venues for watching a concert. a listing of co…
concert venues
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10) the graph models the total cost of renting a bike. what is the y - …
y - int.: 5; Explanation: It is the fixed cost of renting the bike (the cost when time = 0 hours) # 11.
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what does the word sustainable mean as it is used in paragraph 1 of the…
can be maintained
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(mc) the text below was written in 1918: \i listened to all that was sa…
He believes that the Espionage Act is contradictory to democratic principles and freedom.
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industrialization and innovation: tutorial analyze a primary source: an…
Carnegie thought the wealthy should use their surplus wealth for the general good during their lifetime as trustees for the poor, while many other industrialists likely hoarded we…
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tourists flocked to the top of the skyscraper to enjoy the panoramic vi…
A. all around
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8:45 am tue sep 30 9% deltamath.com score: 7.75/10 penalty: 0.25 off de…
47.9%
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question a random sample of students was surveyed and asked to list the…
$27.0$
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the text below was written in 1918: your honor, years ago i recognized …
the working class
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question a survey asked a random sample students if they estimated they…
67%
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how do you warn the vehicle behind you that you intend to leave traffic…
For the first question: - B. Tap the brake - D. Use your turn signal For the second question: - A. Median barriers - B. Guard rails - D. Brake away signs - E. Rumble strips - G. C…
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wow word democracy prefix:demo prefix meaning:people or common people r…
Root: cracy Root Meaning: rule Suffix: - cy Suffix Meaning: state or condition Other Words with this Prefix: demography Other Words with this Suffix: bureaucracy
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question a survey stopped men and women at random to ask them where the…
$35.7$
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you have 3 aircraft in the hangar. one is 20 ft long, the next is 52 fe…
Question 1: 57.67 Question 2: 171.25
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question zoey recorded the grade level and instrument of everyone in th…
$27$
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5. what is the meaning of the phrase \white mans burden,\ and how was i…
The "White Man's Burden" was the idea that white people had a moral obligation to "civilize" non - white populations. It was used to present U.S. imperialism as a benevolent act o…
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22. what is the process called by which the constitution can be changed…
22. c. Formal amendment 23. c. 27 24. c. Supreme Court decisions 25. b. Federalism
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thought - provoking the table shows the temperatures, y (in degrees fah…
$y = 190\cdot(0.929)^x$; Prediction: $47^{\circ}F$
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the text below was written in 1918: \i listened to all that was said in…
He stands in opposition to the current political system.
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the text below was written in 1918: \your honor, years ago i recognized…
B. prisoners
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association/correlation (scatter plot) score: 1.75/7 penalty: 0.25 off …
The scatter - plot shows positive association because as the plotted values of \(x\) increase, the values of \(y\) generally increase.
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wow word unity prefix:\troot:\tsuffix: prefix meaning:\troot meaning:\t…
Prefix: None Root: uni - Suffix: - ty Prefix Meaning: None Root Meaning: One Suffix Meaning: Noun - forming suffix Other Words with this Prefix: unicycle, unicorn Other Words with…
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deltamath student appl solvex deltamath.com association/correlation (sc…
The scatter plot shows positive association because as the plotted values of \(x\) increase, the values of \(y\) generally increase.
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the sweet encounter is a touring international candy festival. the fest…
(a) $p = 0.32$ (b) $\hat{p}=0.32$
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zahra is a company specializing in high - end cosmetics. its signature …
(a) $\hat{p}=0.18$ (b) $p = 0.24$
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question describe the correlation in the scatter plot below. answer att…
The scatter plot shows nonlinear correlation because as the plotted values of $x$ increase, the values of $y$ generally decrease.
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the gazelles are a professional soccer team based in a large city. at t…
(a) Population proportion: $p = 0.41$ (b) Sample proportion: $\hat{p}=0.46$
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1 - extra support needed. wow word resilience prefix: root: suffix: pre…
Prefix: None Root: resil- Suffix: -ence Prefix Meaning: None Root Meaning: To recoil or spring back Suffix Meaning: State or quality Other Words with this Prefix: None Other Words…
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dylan has a part - time job at an ice skating rink selling hot cocoa. h…
84
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prediction from line of best fit score: 5/7 penalty: 0.25 off question …
212
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the following is a list of 12 measurements. -13, -22, -16, -19, -6, -30…
$-2610$
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question sebastian decides to research the relationship between the len…
50
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an office machine is purchased for $4100. assume that its salvage - val…
a) $V(1) = 2400$. The meaning is the salvage value of the office machine 1 year after purchase. b) $V(6)\approx186.62$. The meaning is the salvage value of the office machine 6 ye…
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the following is a list of 10 measurements. -51, 6, 15, -70, -77, 30, -…
$-5.31$
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sebastian decides to research the relationship between the length in in…
50
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question john has a part - time job at an ice skating rink selling hot …
77
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answer the following questions in a different color. 1. do you think th…
1. There is no way to be certain if the record was accurate. Translators may have altered words. 2. He was ceasing armed resistance due to its futility and the heavy losses. 3. Th…
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question a researcher studied the relationship between the number of ti…
154
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prediction from line of best fit score: 1/7 penalty: 0.25 off question …
$12$
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a sample of 263 adults is selected. the adults are classified according…
$0.46$
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a sample of 335 students at a university is surveyed. the students are …
$0.14$
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an office machine is purchased for $4800. assume that its salvage value…
a) $V(6)\approx223.95$. It means the salvage value of the office machine 6 years after purchase is about $\$223.95$. b) $V^{\prime}(6)\approx - 114.39$. It means the salvage value…
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wow word resilience prefix: root: suffix: prefix meaning: root meaning:…
Prefix: re - Prefix Meaning: again, back Other Words with this Prefix: rebuild, recall Root: sil (from salire) Root Meaning: to leap Suffix: -ence Suffix Meaning: state or quality…
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use the box - and - whisker plot to answer the following. (a) what is t…
(a) 27.5 kg (b) 10 kg (c) 22.5 kg