統計與機率
資料分析、機率分佈、假設檢定與統計方法。
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question 1 points 3 robert is participating in a collaborative discussi…
A. Understanding the reasons behind the diverse perspectives of others
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a magazine claims that the mean amount spent by a customer at burger st…
B. "The mean amount spent by a customer at Burger Stop is greater than the mean amount at Fry World."
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to water a lawn adequately, it takes 584 gal of water for every 1000 sq…
\( 0.584 \) (or \( \frac{73}{125} \))
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7. in the term angiorrhaphy, what is the meaning of the suffix? - incis…
B. Suture
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answer the following question in 1-2 complete sentences. explain the di…
Iconography involves identifying and describing symbols/images in art, while iconology interprets their broader cultural, social, or ideological meanings.
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a pet association claims that the mean annual costs of food for dogs an…
For part (e): At the 5% significance level, there is enough evidence to reject the claim that the mean annual cost of food for dogs is equal to the mean annual cost of food for ca…
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a pet association claims that the mean annual costs of food for dogs an…
The standardized test statistic \(t\) is \(\boldsymbol{2.27}\) (rounded to two decimal places).
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5 the distance between vancouver and winnipeg is approximately 1850 km …
Scale statement: \(1\space cm:50000000\space cm\) (or \(1\space cm:500\space km\) since \(50000000\space cm = 500\space km\)), Scale factor: \(\frac{1}{50000000}\) (or \(1:5000000…
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4 the graph below shows the average miles per gallon marie’s new car ge…
D. 20 miles per gallon
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in 2008, the supreme court issued another landmark ruling about the sec…
It affirmed additional justifications for gun ownership, including self - defense.
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a pet association claims that the mean annual costs of food for dogs an…
(d) Reject the null hypothesis because the test statistic \(2.27\) is in the rejection region (\(t>2.04\)). So the first dropdown is "Reject", the second dropdown is "is".
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a pet association claims that the mean annual costs of food for dogs an…
\(2.27\)
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zoom keyser sanchez gr add note question guide ex 25 ≤ y ≤ 400 100 ≤ y …
\( \boldsymbol{0 \leq x \leq 8} \) (the option with this inequality)
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3 compare the rates of change of the following table and graph. | x | y…
C. The rate of change of the table is equal to the rate of change of the graph.
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the first amendment also addresses freedom of the press, meaning news s…
The government did not make a clear case that printing the documents would directly cause danger.
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students in a class were surveyed about the number of children in their…
\(\frac{1}{50}\) (the first option, assuming the options are like A. \(\frac{1}{50}\), B. \(\frac{2}{15}\), etc.)
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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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algebra name: taye banks jr date: scatter plot assignment 10 points pic…
1. Table (using United States): | Years After 2000 | Population (in millions) | |------------------|--------------------------| | 0 | 282.2 | | 5 | 295.5 | | 10 | 308.7 | | 15 | 3…
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24. cause and effect — articles of confederation primary source: articl…
- Cause: Weak national government; Effect: Strong state independence (because a weak national government meant states had more autonomy). - Cause: No power to tax; Effect: Weak na…
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a pet association claims that the mean annual costs of food for dogs an…
D. The rejection regions are \(t < - 2.04\) and \(t>2.04\).
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when a softball player gets a hit, it can be a single, double, triple, …
20 percent
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11. which graph best represents the solution set for this system of ine…
La gráfica que mejor representa el conjunto de soluciones es la que tiene dos líneas discontinuas: una con ecuación \( y =-\frac{1}{2}x-1\) (punteada, pendiente \( -\frac{1}{2}\),…
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a six - sided number cube is rolled twice. what is the probability that…
\(\frac{1}{6}\) (the first option, i.e., the option with \(\frac{1}{6}\))
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a pet association claims that the mean annual costs of food for dogs an…
C. "The mean annual costs of food for dogs and cats are equal." The null hypothesis, \( H_0 \), is \( \mu_1 = \mu_2 \). The alternative hypothesis, \( H_a \), is \( \mu_1 eq \mu…
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which events are independent? select three options. roll a number cube,…
- Roll a number cube, and then roll the same number cube again. - Flip a coin, and then flip the coin a second time. - Draw a card from a deck, replace it, and then draw a second …
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5 maría walks 1,500 meters in \\(\\frac{1}{4}\\) hour. what is her spee…
C. 6 kilometers per hour
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a pet association claims that the mean annual costs of food for dogs an…
C. "The mean annual costs of food for dogs and cats are equal."
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anne and kyleigh worked over summer vacation. the equation below repres…
A. Kyleigh earned more money per hour.
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the probability of event a is 0.48, the probability of event a and b is…
\( 0.62 \) (corresponding to the option with 0.62)
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many libraries in the united states have instituted interlibrary loan p…
D. between libraries.
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the values that can be substituted for x to make the inequality from * …
4.4, 0 (assuming the inequality is \( x + 4\leq8.6 \), the values that satisfy are 4.4 and 0 among the given options)
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feint feynt (o. fr.) n. 1. a pretense or make-believe show 2. military,…
A. definition 3 (Note: There seems to be a typo in the options. Based on the analysis, the correct definition should be definition 1, but following the given options, if we assume…
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3 a painter takes 3 hours to paint \\(\\frac{1}{8}\\) of a mural. which…
A. The painter paints $\frac{1}{24}$ of the mural per hour and will paint $\frac{5}{12}$ of the mural in 10 hours.
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select the correct answer. sam plans to use a spinner to choose which f…
D. spinner 2
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name: part 2: turn your brainstorm into possible driving questions stud…
This is a worksheet for students to generate driving questions related to a corporate (Carol?) topic. Since no specific question is asked here (like generating questions, selectin…
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josiah takes a multiple-choice quiz that has three questions. each ques…
$\frac{1}{125}$ (corresponding to the option $\frac{1}{125}$)
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select the correct answer. arborists use a test to detect the presence …
B. 0.03
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introduction to normal distributions instruction active try it calculat…
Jordan's z - score: 2; Jake's z - score: - 2.5; Jacob's z - score: 0
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select the correct answer from the drop - down menu. dustin and melanie…
Melanie
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the best player on a baseball team has a 0.468 batting average. if all …
0.0302
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events a and b are mutually exclusive. events b and c are non - mutuall…
The Fourth Venn Diagram (the right - most one with A, B, C where A and B don't overlap, B and C overlap)
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a student randomly guesses on a 25-question true-false quiz. determine …
E. The experiment is a binomial experiment.
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this week in school, there is a 75 percent probability of having a fire…
No, because \( P(F \cap T) eq P(F)\cdot P(T) \) (the first option).
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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 (the second option)
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type the correct answer in each box. spell all words correctly, and use…
Conner = 60 % April = 75 % Tony = 70 % The player the coach should pick to play as goalie is April
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a researcher claims that the stomachs of blue crabs from location a con…
$t\approx1.667$ (If $\bar{x}_1 = 200$, $t\approx1.092$; but likely $\bar{x}_1 = 210$, so $t\approx1.667$)
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a spinner contains four equally shaded areas, as shown below. spinner i…
- \( P(\text{both green}) = \frac{1}{16} \) (Correct) - \( P(\text{both blue}) = \frac{1}{4} \) (Correct) - \( P(\text{first orange and then blue}) = \frac{1}{8} \) (Correct)
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tasha, clearly confused, stared at mrs. orchan— she didn’t know how to …
A. The words "icy" and "smile" add to the passage’s dialogue.
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a new airline flies airplanes with two different seating configurations…
B. Dan should hope his flight uses configuration A
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practice calculating probabilities using the addition and multiplicatio…
B. 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. C. Two cards are randomly chosen from a standard deck. Eli…
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7. a company manufactures 15-inch laptops and 17-inch laptops. it takes…
3 \( x \) + 5 \( y \) \( \leq \) 480 (es decir, en los menús desplegables: el primer coeficiente es 3, el segundo es 5 y la relación es \( \leq \))
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a researcher claims that the stomachs of blue crabs from location a con…
D. \(H_0:\mu_1 - \mu_2\leq0\) \(H_a:\mu_1 - \mu_2>0\)
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6. admission to a zoo costs $10 for adults and $6 for children. a group…
Adults: 12 Children: 17
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construct a 90% confidence interval for $\\mu_1 - \\mu_2$ with the samp…
\(40 < \mu_1 - \mu_2 < 254\) (values depend on actual missing sample stats; this is with assumed values)
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choose the correct answer from each drop - down menu and complete the s…
After 14 years, both schools have an average attendance of 950. So the completed sentence has "14" for the number of years and "950" for the average attendance.
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write the rate as a fraction in lowest terms. 10 people for 15 dresses
$\frac{2}{3}$
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select the correct answer from the drop-down menu. dustin and melanie a…
Melanie
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select the correct answer. at a college basketball game, one lucky tick…
D. Randomly assign the 4,000 ticket holders to 40 equal - sized groups. Then randomly select 4 of the groups and place their seat numbers in the bin. Randomly select the winner of…
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write the rate as a fraction in lowest terms. 22 cups for 4 people
$\frac{11}{2}$
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choose the correct answer from each sentences. the solution is (14 950)…
14
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tim works for a cell phone company and is testing their new biometric s…
C. 5.8%
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construct a 90% confidence interval for $\\mu_1 - \\mu_2$ with the samp…
\( 6 < \mu_1 - \mu_2 < 10 \) (assuming \( s_2 = 2.25 \), \( n_2 = 9 \); adjust if actual values differ, but this is the typical solution for such a problem with given \( \bar{x}_1…
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average attendance 1400 1300 1200 1100 1000 900 800 700 600 0 2 8 x cho…
(14, 950)
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average attendè 1100 1000 900 800 700 600 0 2 4 6 8 10 12 14 16 18 x ye…
The solution is the point of intersection of the two lines. After 12 years, both schools have an average attendance of 850 students. (The exact numbers may vary slightly depending…
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anne and kyleigh worked over summer vacation. the equation below repres…
A. Kyleigh earned more money per hour.
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for sadies lemonade recipe, 4 lemons are required to make 10 cups of le…
The rate of lemons being used is \(\frac{2}{5}\) (or 0.4) lemons per cup of lemonade.
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the gonzalez family drove from 10:38 am to 2:05 pm. how long did they d…
3 hours 27 minutes
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a deck of 108 cards contains an equal number of each color: red, yellow…
\( \frac{1}{4} \) (the option with \( \frac{1}{4} \))
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test the claim about the difference between two population means \\( \\…
B. \(H_0: \mu_1 \leq \mu_2\), \(H_a: \mu_1 > \mu_2\)
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which of these data sets could best be displayed on a dot plot? 721, 72…
The data set \( 721, 722, 722, 723, 724, 724, 724, 725, 727, 728, 730 \)
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the graph below shows the amount of money a store earns for selling t -…
A. $\$10$ per T - shirt
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test the claim about the difference between two population means \\(\\m…
- The standardized test statistic \( t\approx - 1.62 \) - The P - value \( P\approx0.118 \) - Decision: Fail to reject \( H_0 \). There is not enough evidence at the 1% level of s…
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stand. the scatter plot shows the daily high temperature and the number…
101
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test the claim about the difference between two population means $\\mu_…
\(0.118\)
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paul left for school at 7:25 am. he returned home at 3:15 pm. how long …
7 hours 50 minutes (the option with "7 hours 50 minutes")
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• 19. how many \\(\\frac{1}{3}\\)s are in \\(\\frac{3}{4}\\)? find each…
\( x = 1.6 \) ### Problem 22: Solve \( 0.32w = 32 \)
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test the claim about the difference between two population means $\\mu_…
The standardized test statistic \( t\approx\boxed{- 1.62} \) (or \( 1.62 \), depending on the direction, but with the given values, the negative sign is correct as \( \bar{x}_1<\b…
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test the claim about the difference between two population means $\\mu_…
F. \(H_0:\mu_1=\mu_2\) \(H_a:\mu_1 eq\mu_2\) (Note: There was a label error in the original, the correct option with \(H_0:\mu_1 = \mu_2\) and \(H_a:\mu_1 eq\mu_2\) is the one t…
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the manager at a movie theater collects data on comedy and action movie…
52.4%
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the first amendment also addresses freedom of the press, meaning news s…
The government did not make a clear case that printing the documents would directly cause danger.
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unit 4 exam mexico, 2020 1. which agency is responsible for taking a co…
B. The U.S. Census Bureau
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students are entitled to first amendment protections, but these protect…
A. Schools can regulate student speech if it severely disrupts school functions. D. Students have a right to free speech even when they are on school property.
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complete the example below. then solve problems 1–10. example write an …
The value of \((0.1)^3\) is \(0.001\).
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use the t-distribution table to find the critical value(s) for the indi…
1.708
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12. larry camina 5 millas cada semana. camina la misma cantidad de mill…
Larry camina 50 millas.
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the first amendment is a critical part of the bill of rights because it…
It ruled that to be prohibited, speech had to be likely to cause unlawful activity.
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use the t-distribution table to find the critical value(s) for the indi…
-3.250
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use the t-distribution table to find the critical value(s) for the indi…
\(-2.845\)
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use the t-distribution table to find the critical value(s) for the indi…
-1.372, 1.372
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use the t-distribution table to find the critical value(s) for the indi…
\(\pm1.372\)
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which explanation below best describes how to perform the two - sample …
C. State the hypotheses and identify the claim. Specify the level of significance. Determine the degrees of freedom. Find the critical value(s) and identify the rejection region(s…
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read the prompt/s below and answer accordingly. validate with desmos if…
C. 50, 56, 50, 56, 57, 55, 58, 50, 59, 55, 50, 50 ### Sub - Question 2
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choose the correct answer below. a. the population standard deviations …
C. The population standard deviations are unknown. The samples are randomly selected. The populations are normally distributed or each sample size is at least 30.
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35% of students take spanish or engineering 30% of students take spanis…
B. 20%
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which equation is true? 0.1 ÷ 0.35 = 0.35; 0.7 ÷ 0.35 = 2; 0.35 ÷ 0.7 =…
\(0.7\div0.35 = 2\) (the second equation option)
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13. a motorcycle is moving in a straight line on a road. the distance t…
- Dependent variable: Distance (feet) - Max value: 120 - Min value: 0 - Increasing interval: \(0\leq t\leq15\) (or \([0,15]\)) - Average rate of change (5 to 15): 8 - \(f(5)\): 40…
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select all the correct answers. members of the service club at rebecca’…
(8,16), (10,10), (0,22)
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world population distribution changes throughout times because the worl…
true (the checkbox next to "true" should be selected)
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unit a exam 1. which agency is responsible for taking a count of the u.…
B. The U.S. Census Bureau ### Question 2
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the graph below represents the number of miles blake runs in x hours. b…
D. There is not enough information to determine their speed.