Estadística
Análisis de datos, distribuciones de probabilidad y pruebas de hipótesis.
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ten of the 100 digital video recorders (dvrs) in an inventory are known…
0.1
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during practice, a racecar driver drove 7 laps around the course. durin…
70
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12. what does the enlightenment idea of popular sovereignty mean? ○ div…
C. Citizens are the source of all political power.
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mandy, a meerkat at the zoo, likes to dig holes in the dirt. yesterday,…
54
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7. what does the idiom \piece of cake\ mean? a delicious dessert a diff…
C. Something easy to do
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which of the following values cannot be probabilities? 3/5, 5/3, -0.44,…
A. \( \frac{5}{3} \), B. \( 1.37 \), C. \( -0.44 \), F. \( \sqrt{2} \)
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maria keeps jars filled with seashells and stones that she has collecte…
3
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long grove elementary school holds a bake sale every year. this year, 2…
10
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vicky lent her little sister $2 to buy a candy bar. she also lent her l…
2
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2. in the context of the passage, the statement in lines 28-30 most nea…
A. scientists are interested in how salamander regeneration can apply to humans.
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calculate. $(4.4 \\times 10^5)(2 \\times 10^3)$ write your answer in sc…
The coefficient is \( 8.8 \) and the exponent of 10 is \( 8 \), so the answer is \( 8.8\times10^{8} \).
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calculate. $(7 \\times 10^3)(6.6 \\times 10^2)$ write your answer in sc…
\(4.62\times10^{6}\)
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calculate. $(4 \\times 10^6)(2.2 \\times 10^4)$ write your answer in sc…
The coefficient is \(8.8\) and the exponent of 10 is \(10\), so the answer is \(8.8\times10^{10}\). Filling in the boxes, the first box (for the coefficient) is \(8.8\) and the se…
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calculate. $(4 \\times 10^8)(2 \\times 10^7)$ write your answer in scie…
\(8\times10^{15}\)
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read the excerpt from judith ortiz cofer’s poem el olvido a bare, cold …
establishing the meaning of words in English and Spanish
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calculate. $(8 \\times 10^4)(9 \\times 10^2)$ write your answer in scie…
The coefficient is $7.2$ and the exponent of 10 is $7$, so the answer is $7.2\times10^{7}$ (filling the first box with $7.2$ and the second box with $7$)
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4. luke also collects stamps. he has 57 stamps. his friend gives him 25…
$57 + 25 = 82$ 82 stamps
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calculate. $(1.3 \\times 10^5)(3 \\times 10^7)$ write your answer in sc…
\(3.9\times10^{12}\)
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calculate. $(1.3 \\times 10^5)(3 \\times 10^7)$ write your answer in sc…
\(3.9\times10^{12}\)
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functons will be opening a new high school in the fall. the number of u…
B. $\begin{cases} 450 \leq x \leq 600 \\ 550 < y < 700 \\ x + y \leq 1300 \\ x > y \end{cases}$
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a jeweler put these gemstones out on display today. |gemstone|quantity|…
\(3:4\)
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stamp collection mary collects stamps. the table shows the number of di…
26
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tessa is throwing a pool party to kick off the summer. her pool is empt…
Two points to draw the line are \((0, 0)\) and \((1, 10)\) (or other valid points like \((2, 20)\), \((5, 50)\) etc., as long as they satisfy \( y = 10x \)).
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22. according to one study, 61% of the population swallow at least one …
B. 22%
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jim runs laps around his block every morning before school. the graph s…
D. $\frac{3}{2}$
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21. one hundred students were allowed to retake an exam for their math …
C. 0.912
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captain james cook captain james cook was an eighteenth century british…
D. He was a brave and adventurous explorer.
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which equation represents the relationship between x and y? a y = 0.25x…
First Question: B. \(y = 0.50x\) Second Question: B. 6
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tessa is throwing a pool party to kick off the summer. her pool is empt…
Two points to draw the line are \((0, 0)\) and \((1, 10)\) (or other valid points like \((2, 20)\), \((3, 30)\) etc., based on the graph's scale, but \((0,0)\) and \((1,10)\) are …
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which equation represents the proportional relationship shown on the ta…
C. \( y = \frac{1}{4}x \)
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17. a yogurt shop offers 6 different flavors of frozen yogurt and 12 di…
B. 72 ### Question 18
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review the passage. the paradox is shown in bold. these articles have a…
It contributes to a mock - serious tone.
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39. problem solving the table shows the portion of students in each gra…
Grade 7, Grade 6, Grade 8 (or in terms of participation portions: \( \frac{3}{5} \), \( 0.64 \), \( 65\% \))
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13. while organizing a film festival, you must decide which of the 12 m…
D. 95,040 ### Question 14 (assuming the number of toppings is 11, since it's partially visible "offers 11 toppings")
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9. the frequency table shows the results of a survey of a certain fores…
D. 0.041 ### Question 10
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review the passage. the hyperbole is shown in bold. at that time bogotá…
It implies that it rains too much in Bogotá.
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the table shows the ordered pairs of a proportional relationship. which…
C. 25
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7. a pet store has two tanks of tropical fish. the first tank contains …
### Question 7 # Explanation: ## Step1: Calculate total fish in first tank First tank: \(7\) blue + \(3\) yellow = \(10\) fish. Probability of blue from first tank: \(\frac{7}{10}…
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what is the correct meaning of the word dictatorial? the country had al…
A. authoritarian
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read the sentence from paragraph 2. at the heart of the mitigation proj…
the purpose of creating wildlife crossings.
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read the sentence from paragraph 2. at the heart of the mitigation proj…
the most important part.
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consider a second airplane flying at a cruising speed of \\(\\frac{1}{4…
A. The second airplane is flying 3 kilometers per minute slower.
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the latin root tactus is part of the word tangent. what does the word t…
touching
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review the passage. the antithesis is shown in bold. if all the world a…
It suggests that it is foolish to care about material possessions.
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compute the unit rate of the airplanes cruising speed in kilometers per…
B. 9
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determine whether each pair of actions results in independent or depend…
A. Dependent; the first marble selection will affect the second marble selection. ### Question 2
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select the correct answer from each drop-down menu. what relevant evide…
examples of ways satellites help us predict bad weather
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what is the correct meaning of the word abide? when we visit grandma’s …
A. submit to
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what does the root cand mean in the word candescent? the candescent qua…
A. glowing
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a sports shop has 20 employees. 30% of the employees work part - time. …
\(6\)
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fill in the missing number. 125% of 12 = some answers
\(15\)
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in owens grade, there are 645 students. currently, 60% of them are enro…
\(387\)
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which best summarizes one central idea of the passage from \mother tong…
A. All forms of the English language are meaningful and purposeful.
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10. what does phonetics study in the context of linguistics? the histor…
The option: "The sounds of speech and their production" (the second option among the given choices)
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there are 70 seats on a train. 40% of the seats are empty. how many emp…
\(28\)
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1. which sentence uses a modal verb correctly? a. he musts finish his w…
1. B. He must finish his work. 2. B. Ability 3. C. Must 4. A. You may leave early. 5. A. Advice 6. B. Might 7. C. She can play piano. 8. A. I will call you later. 9. (No se ve la …
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which integer tells the average change in field position for each of th…
B. \(-9\)
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passages excerpt from letter from birmingham jail (1963) by martin luth…
C. Slippery slope.
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passages excerpt from letter from birmingham jail (1963) by martin luth…
B. Listing and repetition of the word "Wait"
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question the box plot below represents some data set. what is the minim…
10
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3. what are affixes in linguistics? sounds that represent more than one…
B. Word parts added to the beginning or end of a base word
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select the antithesis in the passage. if all the world and love were yo…
In folly ripe, in reason rotten.
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passages excerpt from letter from birmingham jail (1963) by martin luth…
B. Direct rebuttal that justice delayed is justice denied.
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passages excerpt from letter from birmingham jail (1963) by martin luth…
B. It shows he is not afraid to confront harsh truths directly.
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5. weather jeremiah made this scatter plot of the average monthly high …
First blank: higher; Second blank: positive
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drag the labels to the scatter plots to correctly identify the plot wit…
The Middle Graph (second scatter plot) is the "Line of Best Fit", and the First and Third Graphs are "Not Line of Best Fit".
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passages excerpt from letter from birmingham jail (1963) by martin luth…
D. His personal suffering made these words powerful symbols of frustration and urgency.
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passages excerpt from letter from birmingham jail (1963) by martin luth…
A. Yes, because wide distribution meant their words needed to be precise and powerful.
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passages excerpt from letter from birmingham jail (1963) by martin luth…
D. His audience expected serious, formal reasoning to show credibility.
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passage 1 excerpt from letter from birmingham jail (1963) by martin lut…
C. The format may affect length, tone, and accessibility for a wider audience.
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lesson 3 practice problems 1. complete the table. use powers of 64 in t…
(Problem 3): B. 4
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raymonds monthly budget is shown. | category | amount budgeted ($) | | …
D. 75%
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store-bought, half-baked bake sales and potluck dinners are different e…
It is unlikely that people feel betrayed when offered store - bought food, as the author claims.
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a monster out of a molehill by neal levin 1. when dominick discovers hi…
1. $\square$ Outside, where he was gazing at the stars $\square$ By the pond, where he went for an evening dip $\square$ Near the oak tree, where he sat in the shade $\boldsymbol{…
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question 19 of 20 read the following sentence: i didnt mean to say that…
A. A newbie
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for a particular regression analysis, sst = 184.8594 and ssr = 159.0879…
\( r^2\approx\boxed{0.8606} \)
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7 propel (prə-pěl) -verb - my brother gave me a shove, which propelled …
B. to move forward. ### Question 8:
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the value of the linear correlation coefficient r to find the coefficie…
0.53
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describe the association in the scatter plot below. the scatter plot sh…
The scatter plot shows a negative association because as the plotted values of \(x\) increase, the values of \(y\) generally decrease.
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ten words in context in the space provided, write the letter of the mea…
2. B. respect. 5. A. excused. 6. A. to win.
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use the value of the linear correlation coefficient r to find the coeff…
\(0.8226\)
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describe the correlation in the scatter plot below. the scatter plot sh…
The scatter plot shows no correlation because as the plotted values of \(x\) increase, the values of \(y\) generally do not follow a consistent trend (either increasing or decreas…
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describe the association in the scatter plot below. answer attempt 1 ou…
The scatter plot shows a negative association because as the plotted values of \(x\) increase, the values of \(y\) generally decrease.
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to attract business, a clothing store mails discount coupons to local r…
D. all shoppers in the store on the weekend (assuming the options are labeled with letters, and the last option is D. If the original options had labels like A, B, C, D with D bei…
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a community is considering raising funds to pay for improvements to the…
A. all residents of the community
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local government officials would like to know if city residents are gen…
C. This is a voluntary response sample and is likely to overestimate the proportion of residents satisfied with the cleanliness of the area.
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a community group would like to raise funds to pay for improvements to …
C. The group stands outside a shopping center and asks residents who enter if they support raising funds.
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researchers would like to assess the overall health of white pine trees…
B. The 100 trees closest to a ranger station are assessed for damage.
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what proportion of city residents uses public transportation at least o…
A. This is a convenience sample and is likely to overestimate the proportion of residents who take public transportation.
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how far do us workers travel to get to their jobs? to estimate the aver…
A. The population is all US workers. The sample is adults who respond to the survey.
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researchers would like to assess the overall health of white pine trees…
D. Trees near the road may have more damage than trees away from it, so the results may overestimate the overall damage of the trees. (assuming the options are labeled A, B, C, D …
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to estimate the mean number of text messages sent by cell phone users, …
B. Because this is a convenience sample of college students, it is likely that bias is present and that the results will overestimate the mean number of text messages sent.
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local government officials would like to know if city residents are gen…
A random sample of homes in the city is taken, and city officials visit these homes and survey the homeowners.
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clara has a job walking dogs. the picture graph shows the number of dog…
9
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listed below are annual data for various years. the data are the number…
# Explanation: ## Step1: Identify Variables Let \( x \) be Car Sales (values: 8179, 8218, 8518, 8992, 8636, 8535, 8275) and \( y \) be Super Bowl Points (values: 52, 70, 43, 74, 4…
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listed below are annual data for various years. the data are the number…
A. (The scatterplot with x - axis "Car Sales" in 8000 - 9000 range and y - axis "Super Bowl Points" in 0 - 100 range, with points distributed according to the data)
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listed below are annual data for various years. the data are the number…
C. \(H_0: ho = 0\) \(H_1: ho eq0\)
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the line plot shows the weights of pieces of fruit. what is the total w…
$\frac{4}{8}$ pound (corresponding to the first option: $\frac{4}{8}$ pound)
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twenty different statistics students are randomly selected. for each of…
C. The value of \( r \) does not change, because \( r \) is not affected by converting all values of a variable to a different scale.
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twenty different statistics students are randomly selected. for each of…
B. The value of \( r \) is estimated to be \( 0 \), because it is likely that there is no correlation between body temperature and head circumference.