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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a 12 - sided die is rolled. the set of equally likely outcomes is {1,2,…
\(\frac{3}{4}\)
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a 10 - sided die is rolled. find the probability of rolling an even num…
\(\frac{1}{2}\)
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a 12 - sided die is rolled. the set of equally likely outcomes is {1,2,…
\(\frac{1}{12}\)
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determine whether the statement is true or false. if the statement is f…
D. This statement is true.
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evaluate the expression. \\( \\frac { _ { 4 } c _ { 2 } \\cdot _ { 5 } …
\(\frac{6}{91}\)
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grant was arrested for unlawful possession of a firearm, a misdemeanor …
B. Surety
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use the passage to answer the question. which choice best analyzes how …
A. They develop the argument that there are few legitimate justifications for not voting.
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which best explains why britain restricted trade with the colonies? ○ t…
B. to ensure that trade generated taxes for the Crown
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solve by a method of your choice. a medical researcher needs 6 people t…
\(3003\)
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in how many ways can a committee of four democrats and five republicans…
\(41580\)
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you volunteer to help drive children at a charity event to the zoo, but…
\(18564\)
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(a) how many of the freshmen like rock but dont like classical? (b) how…
(a) \(184\) (b) \(230\) (c) \(341\)
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(a) how many of the students drink exactly one of the three drinks? (b)…
(a) \(312\) students. (b) \(299\) students. (c) \(89\) students.
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read the following sentences from the text. \the ideas in dystopian fic…
D. perfect and best possible
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this table shows the average amount of daily screen time, x, in hours, …
B. Sam
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a bag contains 4 green marbles, 3 red marbles, and 7 blue marbles. one …
D. \(\frac{3}{28}\)
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which equation means \the product of seven and a number increased by tw…
A. \( 7x + 12 = 93 \)
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suppose the number of people y (in hundreds) employed as asteroid miner…
A. The model predicts there will be 72,500 asteroid miners in 2007
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suppose the number of people y (in hundreds) employed as asteroid miner…
B. Yes. The ordered pair \((5,725)\) means that 5 years after 2002 (i.e., in 2007), the number of people employed as asteroid miners is 725 hundred (or 72500).
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suppose the number of people y (in hundreds) employed as asteroid miner…
b. Yes, the point \((5,725)\) lies on the line. The ordered pair \((5,725)\) means that 5 years after 2002 (i.e., in 2007), the number of people employed as asteroid miners is 725…
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question 5 of 10 in \musée des beaux arts,\ how does auden take the foc…
D. By waiting until the end of the poem to mention Icarus
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what does the point e represent? an order for 20 pounds of tomatoes cos…
An order for 20 pounds of tomatoes costs $25.
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what does the point h represent? josephs time machine needs 10 megawatt…
Joseph’s time machine needs 10 megawatts of electricity to travel back 25 years.
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what does the point w represent? he can grow 10 carrots at a time if hi…
He can grow 50 carrots at a time if his garden is 10 square feet.
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how long does it take to ring up a customer with 20 items? this graph s…
\(120\) seconds
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how did innovations in manufacturing lead to improvements in transporta…
A. Goods were produced efficiently and needed more efficient transportation.
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dimensional measurement: precision can be defined as * quality, conditi…
Quality, condition, or fact of being exact
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study guide algebra 1 unit 3: linear equations study all of the followi…
\(x = 210\) miles.
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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.
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a car has 3 white and 2 black seat covers. what is the probability of s…
\(\frac{2}{5}\) (corresponding to the option with \( \frac{2}{5} \))
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a box contains 30 new phones of which 8 are nokia, 10 are iphones, 12 a…
$\frac{2}{5}$ (corresponding to the option with $\frac{2}{5}$)
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a packet contains 20 lollies of which 6 are grape, 6 are blueberry, 8 a…
\(\frac{2}{5}\) (corresponding to the option with \(\frac{2}{5}\))
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from a bag of 50 cards, whose faces are numbered 1 to 50, one card is d…
\(\frac{14}{25}\)
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a box contains 5 billiard balls, 3 red and 2 white. what is the probabi…
\(\frac{3}{5}\) (corresponding to the option with \( \frac{3}{5} \))
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from a bag of 20 cards, whose faces are numbered 1 to 20, one card is d…
\(\frac{1}{2}\) (corresponding to the option with \( \frac{1}{2} \))
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the probability of picking up a red ball from a bag containing 8 red ba…
\(\frac{4}{7}\) (corresponding to the option with \( \frac{4}{7} \))
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what is the probability of picking up a red sock, from a basket contain…
\( \frac{2}{5} \) (corresponding to the option with \( \frac{2}{5} \))
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fred reaches into a bag of 40 jumbled pairs of socks, in which there ar…
$\frac{20}{39}$
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fred reaches into a bag of 40 jumbled pairs of socks, in which there ar…
\(\frac{19}{78}\)
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fred reaches into a bag of 40 jumbled pairs of socks, in which there ar…
\(\frac{19}{78}\)
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a box contains 5 black and 2 white balls. 2 balls are drawn without rep…
$\frac{1}{21}$ (corresponding to the option with $\boldsymbol{\frac{1}{21}}$)
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a box contains 5 black and 2 white balls. 2 balls are drawn without rep…
\(\frac{10}{21}\) (corresponding to the option with \( \boldsymbol{\frac{10}{21}} \))
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5. the chart below shows the number of people who earned different scor…
A line plot with 2 dots above 70, 3 dots above 80, 4 dots above 90, and 2 dots above 100.
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a football squad contains 4 full - forwards, 6 full - backs and 3 centr…
$\frac{4}{13}$ (corresponding to the option with $\frac{4}{13}$)
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a box contains 5 black and 2 white balls. 2 balls are drawn without rep…
$\frac{10}{21}$ (corresponding to the option with $\boldsymbol{\frac{10}{21}}$)
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a football squad contains 4 full - forwards, 6 full - backs and 3 centr…
\(\frac{2}{13}\)
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a bag contains 15 red counters and 12 white counters. 2 counters are ta…
\(\frac{20}{39}\)
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a football squad contains 4 full - forwards, 6 full - backs and 3 centr…
\(\frac{3}{13}\) (the option with \(\boldsymbol{\frac{3}{13}}\))
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a box contains 3 red balls, 5 yellow balls and 2 green balls. two balls…
$\frac{14}{45}$ (corresponding to the option with $\boldsymbol{\frac{14}{45}}$)
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3. two boxes each contain four tiles, numbered 1, 2, 3, and 4. the tile…
B. 4
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1. read this introductory paragraph from a students persuasive letter. …
B. The introduction clearly states the writer’s opinion and shows a strong grasp of the correct organization of a persuasive piece.
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2. what is literacy? the ability to read and write the literal meaning …
A. the ability to read and write
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complete the sentence with the better correlative conjunctions. you fli…
If...then
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5. what does expounded mean? explained contagious upon people destroyed
A. explained
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1. if you use the context clues in this sentence, what should you decid…
B. waving
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1. what are the steps in computing the mean, variance and standard devi…
To compute the mean, use $\mu=\sum_{x}x\cdot P(x)$; for the variance, use $\sigma^{2}=\sum_{x}(x - \mu)^{2}\cdot P(x)$; and for the standard deviation, use $\sigma=\sqrt{\sigma^{2…
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question the box plot below represents some data set. what is the inter…
40
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to show the relationship between the serving size and the number of pou…
40
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we have been appalled at the depths of depravity revealed by the testim…
It makes the audience reflect on human cruelty in a strikingly informal way.
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question 12 standard: fl.20.best.ela.10.v.1.2 passage: the scientists h…
Supported or confirmed
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question 3 standard: fl.20.best.ela.k12.ee.3.1 passage: \video games ca…
His sample size is too small and biased.
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answer the questions below: (a) the 9 members of a fraternity have the …
Mean ### (b)
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a botanist wants to inspect the health of the plants at the nursery. wh…
The option "The botanist forms groups of 8 plants based on the heights of the plants. Then, he randomly chooses 9 groups and selects all of the plants in these groups." (assuming …
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(a) a consultant wants to ask workers at a factory about the workers jo…
The consultant forms 6 groups of workers based on the workers' shifts. Then, he selects 13 workers at random from each group. ### Part (b)
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a chemist at a pharmaceutical company wants to test the quality of a ne…
(a) stratified sample; (b) systematic; (c) stratified sample.
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(a) for each event in the table, check the outcome(s) that are containe…
(a) For event \(1\): check the box for \(not\ X\). For events \(2\), \(3\), \(4\), \(5\): check the box for \(X\). \(P(X)=\frac{4}{5}\), \(P(not\ X)=\frac{1}{5}\). (b) \(1 - P(not…
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a wheel has 5 equally sized slices numbered from 1 to 5. some are grey …
(a) For event \(X\): \(P(X)=\frac{4}{5}\), for event \(not - X\): \(P(not - X)=\frac{1}{5}\) (Outcomes for \(X\): 2, 3, 4, 5; Outcomes for \(not - X\): 1) (b) \(1 - P(not - X)=\fr…
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(a) for each event in the table, check the outcome(s) that are containe…
(a) For event \(X\): check the boxes for outcome 1 and outcome 5. For event \(\text{not }X\): check the boxes for outcome 2, outcome 3, outcome 4, outcome 6, outcome 7, and outcom…
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which measure will best determine the most popular ice cream flavor in …
Mode
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a dartboard has 8 equally sized slices numbered from 1 to 8. some are g…
- \(P(X)=\frac{1}{4}\) - \(P(\text{not }X)=\frac{3}{4}\) - \(1 - P(X)=\frac{3}{4}\)
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a card is drawn at random. let x be the event that the drawn card is gr…
(a) Outcomes for \(X\): 1,7,9; (b) \(1 - P(\text{not }X)=\frac{3}{10}\) (c) \(1 - P(\text{not }X)\) is the same as \(P(X)\)
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we have a deck of 10 cards numbered from 1 to 10. some are grey and som…
\(\frac{3}{10}\)
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the data set 67, 72, 72, 78, 84, 89, 98 describes test grades in mrs. b…
5
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employee salary department $40,000 marketing $45,000 marketing $55,000 …
Median, $47,500$
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jessenia spends $5 on a treat every friday for 8 weeks. the equation be…
C. The change in Jessenia's money over the 8 weeks is $- 40$.
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(turn about the text) naomi shihab nye is a poet, songwriter, and novel…
A. Jane’s father treats moving to a new place casually.
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brock eats 14 eggs each week. he eats the same amount of eggs each day …
D. Brock eats 2 eggs each day of the week.
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a library loans out 3 books every day for a week and no books are retur…
C. The change in the number of books at the library over the course of the week was $- 21$.
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a library loans out 3 books every day for a week and no books are retur…
C. The change in the number of books at the library over the course of the week was \(-21\).
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danika runs an adoption shelter for dogs. she adopts out twenty - four …
C. The dog population in the shelter decreased by an average of 8 dogs each day of the three - day weekend.
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in a small town, 10 residents move to new cities each year for 3 years.…
D. The total change in the number of residents in the town due to people moving away is −30.
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in the context of operations management, ______ means finding ways to m…
b. sustainability
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every morning at dominion middle school, student volunteers host a tele…
- Which phrase means about the same as informed? - know what is going on - What helps the students stay informed? - a television program - How does being informed help the student…
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the robotics club needed more materials for robots, so they organized a…
- Which phrase means about the same as accomplish? - reach a goal - How did the club accomplish something? - they collected so many materials - How did the accomplishment make the…
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to operations managers, ______ means producing output or achieving a go…
d. efficiency
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exercise 2.the number of quarantine protocol violators in one district …
The variance is \(15.25\) and the standard deviation is approximately \(3.905\)
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the open window by saki (info about the passage: a british author who w…
A. Mrs. Sappleton is oblivious to Mr. Nuttel's fear, making his reaction seem exaggerated.
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the women, instead of tempering the animosities of the time, blew up th…
To calm or lessen
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question 1(multiple choice worth 2 points) (05.03 mc) read the followin…
B. Leather workers
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1. how do you find the variance and standard deviation of the probabili…
1. Variance: $\sigma^{2}=\sum(x - \mu)^{2}P(x)$ (where $\mu=\sum xP(x)$), Standard deviation: $\sigma=\sqrt{\sum(x - \mu)^{2}P(x)}$. 2. The formula $\sigma^{2}=\sum x^{2}P(x)-\mu^…
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1. drag and drop the terms with the definitions. government by an elite…
To solve this drag - and - drop problem, we match each term with its correct definition by recalling the historical and political meanings of these Greek - related terms: ### 1. “…
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1. how do you find the variance and standard deviation of the probabili…
1. Variance: $\sigma^{2}=\sum(x - \mu)^{2}P(x)$ or $\sigma^{2}=\sum x^{2}P(x)-\mu^{2}$; Standard deviation: $\sigma=\sqrt{\sum(x - \mu)^{2}P(x)}$ or $\sigma=\sqrt{\sum x^{2}P(x)-\…
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move the points below to create a venn diagram that represent the sets …
- Place \(\text{III}\) and \(\text{V}\) in the overlapping region (intersection) of the two circles (representing \(A\) and \(B\)). - Place \(\text{I}\), \(\text{II}\), and \(\tex…
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which of the following is an example of the pragmatics of language? ○ t…
taking turns in a conversation
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exercise 1.the probabilities of laptops to have 0, 1, 2, 3 or 4 defecti…
\(1.86\)
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15. a small - business owner collected data from a random sample on the…
A. The true relationship between the number of items and the amount spent on an order is linear.
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based on the word root, which word means \a statement or idea of an opp…
contradiction
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read the excerpt from \perseus.\ it happened that soon after their arri…
- Kings ruled over local areas. - Kings sponsored sporting events. - People came to watch the athletic games. - Outsiders could take part in the athletic contests. - Discus throwi…
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use the accompanying excel screenshot to answer parts (a) through (c). …
A. 100% stacked column chart
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se the accompanying graphic showing median annual earnings of full - ti…
B. No, using a pie chart does not make sense because the data are given as percentages that do not add to 100%.