统计与概率
数据分析、概率分布、假设检验与统计方法。
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15. a periodic function goes through 14 complete cycles in 8 minutes. w…
The period of the function is \(\frac{4}{7}\) minutes (or approximately \( 0.57 \) minutes).
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14. your boat is bobbing slowly in the ocean over the waves while you a…
The graph is a sinusoidal curve with amplitude 2, period 10 seconds. It starts at \((0,2)\), goes to \((5, - 2)\), \((10,2)\), \((15, - 2)\), \((20,2)\) (two complete cycles from …
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part - to - whole ratios a part - to - whole ratio compares one ______ …
A Part-to-Whole ratio compares one **part** of a group to the **entire group**.
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question 10 of 10 what did grandfather clauses mean to african american…
C. They couldn't vote if their grandfather had not been allowed to vote.
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an engineer is designing a water tank and the structure to support it. …
- Rational: \(1.93 + 3.02\), \(\sqrt{4}\times3.24\) - Irrational: \(12.1\times\pi\), \(3\pi + 5.2\), \(1.58\times\sqrt{5}\), \(\sqrt{4.31}+\sqrt{2.5}\)
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0.4 > 0.375
The inequality $0.4 > 0.375$ is true.
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7. the blue jays have been given odds in favour of winning their next g…
b. \$8.89 ### Question 8
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lesson 1: all things being equal ready, set, go ready find the features…
Intervals of Increase: $0 < t < 4$ and $7 < t < 10$ (in hours) Intervals of Decrease: $13 < t < 20$ (in hours) Maximum: 8 (distance units) Minimum: 0 (distance units) Domain: $[0,…
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example 1 dustin had 3 hits for every 8 at bats. adrian had 4 hits for …
Adrian has the better hits to at bats ratio.
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example 1 dustin had 3 hits for every 8 at bats. adrian had 4 hits for …
Adrian has the better hits to at bats ratio.
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the future government club wants to sponsor a panel discussion on the u…
A. Haydra, Q. Bolt, V. Cooper, H. Opacian
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building blocks for todays lesson equivalent ratios: equivalent ratios …
Equivalent ratios are ratios that express the **same proportional** relationship. $\frac{16}{48} = \boldsymbol{\frac{1}{3}}$
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a towns population is currently 100,000 people. the mayor discovered th…
88,529 people
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analyzing the case 1. whose interests were in conflict in the tinker ca…
1. The interests of the student protesters (seeking to exercise First Amendment free speech rights) and the school district (seeking to maintain school order and avoid disruption)…
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18) fill in the blanks using the available answer choices. the table sh…
(Blank 1) Jaylin (Blank 2) Mya (Blank 3) Angela
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question 5 of 10 what was meant by the term \slave power\? a. the measu…
D. The political influence held by slaveholders in the South
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integrated math 1 - unit 6 name: example 2 (1 error): gracie created a …
(Example 2 Error): Gracie's error is in the statement "5 students spend at least 3 and less than 6 hours on assignments" (actual count is 6).
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integrated math 1 - unit 6 name. example 2 (1 error): gracie created a …
(for Example 2 error): Gracie’s error is in the “at least 3 and less than 6 hours” count. The correct count is \(6\) (data: \(3, 3, 4, 4, 5, 5\)), but she said \(5\). (For Example…
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decide whether each description is an adjective or an adverb. 9 | | adj…
| Descripción | Adjective | Adverb | | --- | --- | --- | | a word or phrase that modifies the meaning of a verb, adjective, or adverbs | | ✔️ | | a word that modifies a noun | ✔️ …
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what is the range of this relation? { -4, -3, 2, 5 } { -5, -4, 4, 5 } {…
$\{-5, -4, -3, 2, 5\}$
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which is the approximate solution for the system of equations $3x + 4y …
\((-1.4, 1.5)\)
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sheila is buying paper plates and cups for her sons third birthday part…
240
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sheila is buying paper plates and cups for her sons third birthday part…
240
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in exercises 47–54, solve the inequality. (see examples 5 and 6.) 47. (…
$x > \log_9 54$ or $x > 1 + \frac{\ln 6}{2\ln 3}$ --- ### Problem 48: $4^x \leq 36$
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gretta eats oatmeal for breakfast every 4 days, chicken strips for lunc…
84
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evaluate: \\frac{2}{6} \\times \\frac{4}{5} provide an answer as a simp…
\(\frac{4}{15}\)
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12. during a trip, martha drove \\(\\frac{1}{6}\\) of the time, chris d…
$\frac{7}{12}$
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y = 40x - 25 and y = 35x - 5 (x = total games and y = amount earned) be…
B. No. She did not find the correct intersection point.
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question 2 1 pts how does spriggs use visual rhetoric in her essay to h…
She includes relevant images.
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use the graphing calculator to graph the system of equations and find t…
48
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what is the best reason why position papers include and respond to the …
A. because when we take a position on an issue, we are participating in an ongoing conversation that others have been having about that issue
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Question was provided via image upload.
\(\{-4,2,3\}\) (the fourth option, i.e., \(\{-4,2,3\}\))
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Question was provided via image upload.
\(\{-5, -3, 0\}\)
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what is the range of this relation? (2, 2) (1, 4) (-3, 5) (7, 2) (6, 9)…
\(\{-5, 2, 4, 5, 9\}\)
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(c) 0.888 can this be written as a fraction? ○yes ○no give the reason. …
Can this be written as a fraction? Yes Give the reason. This is a terminating decimal. ### Part (d)
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(c) 0.6294… can this be written as a fraction? ○yes ○no give the reason…
Can this be written as a fraction? : No Give the reason. : This is a decimal that neither terminates nor repeats.
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(b) 0.35555… can this be written as a fraction? ○ yes ○ no give the rea…
Can this be written as a fraction? : Yes Give the reason: This is a repeating decimal.
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for each number, determine if it can be written as a fraction. then sta…
Can this be written as a fraction? \(\boldsymbol{\text{Yes}}\) Give the reason. \(\boldsymbol{\text{This is a repeating decimal.}}\) ### Part (b)
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first mixture 231 grams of dye 55 liters of water second mixture 315 gr…
Proportional The amount of dye (in grams) is 4.2 times the amount of water (in liters).
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programs. the wild dogs initial fee is $20 and single-game tickets are …
for x - values window range: A reasonable window range for \( x \) (since \( x \) is the number of tickets, \( x\geq0 \) and the solution is at \( x = 8 \)) could be \( x_{\text{m…
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question 18 (a) write an equation to represent the relationship between…
\( D = 100T \)
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answer the questions below. note that a change can be an increase or a …
-294 ### Part (b)
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write the inequality symbol that best corresponds to each phrase. 7. a …
7. A minimum of: $\geq$ 8. At least: $\geq$ 9. Not more than: $\leq$ 10. In excess of: $>$ 11. At or below: $\leq$
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the ratio of students to adults on a field trip is 49 to 7. which table…
C. | Students | Adults | |----------|--------| | 49 | 7 | | 56 | 8 | | 63 | 9 |
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a bakery sells 22 lemon poppy muffins for every 2 bran muffins sold. wh…
C. Lemon Poppy: 11, 22, 33; Bran: 1, 2, 3
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question 5 of 30 (1 point) | question attempt: 1 of unlimited find the …
(a) $A\cup B = \{0, 3, 4, 6, 8, 9, 12\}$ (b) $A\cap B = \{0, 12\}$ (c) $A\cup C = \{-4, 0, 4, 8, 12\}$
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1. the number of parts produced by an automotive company can be modeled…
When the number of parts produced is 700 (since \( g(t) \) is in hundreds, 7 hundreds = 700), it takes 3 hours into the workday to produce that many parts. In other words, 3 hours…
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a pizza chain wants to send codes for $2 off a large pizza to the subsc…
438012 coupon codes
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an oil company is going to issue new id codes to its employees. each co…
2342560
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suppose a company needs temporary passwords for the trial of a new time…
33124
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graph the inequality below on the number line. $a \\geq 10$
1. Place a filled blue dot at the position of 10 on the number line. 2. Draw a shaded arrow extending to the right from the filled dot, covering all numbers greater than 10.
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solve proportions example \\(\\frac{a}{4}=\\frac{27}{18}\\) what do you…
9. $x=3$ 10. $x=8$ 11. $x=9$ 12. $x=70$ 13. $x=4$ 14. $x=35$ 15. $x=12.5$ 16. $x=13.5$
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what is the best definition of satire? writing that uses ridicule to dr…
writing that uses ridicule to draw attention to an issue or make a point
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question 1 1 pts qualitative research is primarily concerned with _____…
Generating meaning and understanding
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question 9 1 pts on a december day, the probability of snow is.35. the …
A. Dependent events ### Question 10
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a proportional relationship has a constant rate. that means the distanc…
Cole rows at a constant rate of 200 meters per minute.
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count the circles. write the numbers. example twenty - one 1. 2. 3. 4. …
eighteen (18) ### 2.
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there are 64 bags of beans. each bag contains 75 beans. how many beans …
4800
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3. how many pens are there? there are ______ pens.
8
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a pet store has 85 tanks of tadpoles. there are 44 tadpoles in each tan…
3740 tadpoles
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jerry organized a walk for charity that was 58 miles long. of those who…
4756 miles
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there are 74 boxes of erasers in the supply closet. each box contains 9…
6882 erasers
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a seed company filled 83 bags with seed. they put 14 grams of seed in e…
1162 grams of seed
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question 8 1 pts the new york times reported that the mean time to down…
0.2019 (corresponding to the option with.2019) ### Question 9
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a researcher estimates that each person uses 95 gallons of water per da…
6745 gallons
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a chef prepared 13 plates of shrimp. there were 29 shrimp on each plate…
377 shrimp
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kenneth bought 26 boxes of pens. there were 79 pens in each box. how ma…
2054 pens
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a jewelry company ordered 30 boxes of glass beads. there were 15 beads …
450 glass beads
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question 8 1 pts the new york times reported that the mean time to down…
1/\mu$. So substituting $\lambda = 1/\mu$ into $P(X > x)$, we get $P(X > x) = e^{-x/\mu}$. Ah! There we go. So $P(X > x) = e^{-x/\mu}$. So $x = 1.2$, $\mu = 0.75$, so $x/\mu = 1.2…
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maya organized a bike race that was 19 miles long. all 77 riders comple…
1463 miles
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religious syncretism what do we mean by the term “syncretism.” syncreti…
B. blending ### Second Question:
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17. what does the famous twilight zone opening narration suggest about …
D. It explores ideas beyond the normal world and challenges the viewer's thinking
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time (min) distance (m) 1 200 2 400 3 600 4 800 graph the data in the c…
The data points \((1, 200)\), \((2, 400)\), \((3, 600)\), and \((4, 800)\) are plotted on the coordinate plane where the x - axis represents time (in minutes) and the y - axis rep…
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question 3 1 pts if $p(-z < z < z) =.663$, find the values of -z and z.…
\(-.96,.96\) ### Question 4
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(a) a train travels from city a to city b. the table below shows the di…
### Part (a) - Choosing the Correct Description To determine if the train goes the same distance each minute, we calculate the speed (distance per minute) for each data point. Spe…
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a bar chart can be used to display which of the following types of data…
categorical
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this quiz may take you two times, and you have (at most) 1 hour to comp…
0.75 ### Question 2
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match the definitions with the terms. 7.9) ______ pertaining to ones ow…
7.9) C. domestic 7.10) E. implement 7.11) B. privatization 7.12) A. advocate 7.13) D. inflation
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the solution to the equation \\(\\log_{2}x + \\log_{2}(x - 6) = 4\\) is…
\(8\)
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which shows the first step in the solution to the equation \\(\\log_{2}…
The first step in solving the equation \(\log_2x+\log_2(x - 6)=4\) is to use the product rule of logarithms to combine the two logarithmic terms. Applying the rule \(\log_b M+\log…
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topic: rational formulas and variation progress: the movement of the pr…
35
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which formula or formulas show(s) a joint variation? i ( v = x^3 ) ii (…
B. II only
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as preparation for designing a new line of business wear, a clothing ma…
White ### Part (b)
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a kitchen has a tabletop that is a rectangle 56 cm long and 36 cm wide.…
\(312.49\) square inches ### Part (b)
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the area of a certain desert (desert 1) is nine times the area of anoth…
The area of Desert 1 is 18000000 square miles, and the area of Desert 2 is 2000000 square miles.
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a farmer has farmland that is a rectangle 3 mi long and 1.5 mi wide. he…
\( 11.66\) ### Part (b)
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indicate whether each of the following plots show a positive associatio…
(a) The plot shows a positive linear association. (b) The plot shows no association.
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country a produces about nine times the amount of diamonds in carats pr…
Country A produces 9000000 carats. Country B produces 1000000 carats.
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solve the following problems. (see example 3) 9. you roll two six - sid…
\(\frac{11}{12}\) ### Part (b)
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review choose the best answers. 6.1) ______ what does it mean if the fe…
6.1) A. It is spending more than it takes in through revenue. 6.2) D. President 6.3) C. appropriation bill 6.4) B. appropriates
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24. predict the election a polling organization plans to ask a random s…
An unbiased estimator (here, \(\hat{p}\)) means that, over many random samples, the average of the sample proportions \(\hat{p}\) will equal the true population proportion \(p\) (…
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eoc q6.5 3 tries left if a poll of 1,500 people has a sampling error of…
C. the true figure is most likely between 37 and 43 percent
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which expression can be represented by the model? 16×10 16×0.1 1×0.6 1×6
$1 \times 0.6$
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susie is visiting the u.s. from mexico. one day she stopped by a market…
The two blanks are $\frac{2.2\ \text{lb}}{1\ \text{kg}}$ and $\frac{1\ \text{peso}}{0.053\ \text{dollars}}$, and the cost of tomatoes is approximately $\boxed{34.45}$ pesos per kg.
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22. more sample minimums list all 4 possible srss of size ( n = 3 ), ca…
To solve this problem, we first need to know the population data (ages) from which we are sampling. Since it's not provided here, let's assume a simple population for illustration…
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14) ____ the word congregation means ___. a. religious leaders b. assem…
14. B. assembly 15. A. The church kept bringing arms because the Indians threatened them often. 16. B. It was a safe thing to do. 17. B. worshippers had to stay armed in colonial …
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reread the underlined phrase in the passage. what does the author mean …
Driverless cars seem like an impossible fantasy.
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researchers wanted to determine if having a television (tv) in the bedr…
(a) C. The explanatory variable is whether the adolescent has a TV in the bedroom or not (c) B. Yes. For example, possible lurking variables might be eating habits and the amount …
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putting butter and maple syrup into dishes to make a candy? looking at …
It will mainly highlight Alexa's point of view.
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ken sighed, looked at his list of unanswered questions, and pictured hi…
He decides to listen to Alexa rather than ask his prepared questions.