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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given that y varies inversely with x, if x = 7 and y = 4, what is y whe…
D. 14
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the time to complete a project varies inversely with the number of empl…
t = 4.2 days
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the time that a group of carpenters takes to build a deck is inversely …
B. 4
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if y varies inversely as x, and y = 23 when x = 8, find y when x = 4.
46
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what does to limn mean? to draw the outline of or to be highlighted in …
A. to draw the outline of or to be highlighted in light
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solving a system of two equations in two unknowns by elimination can be…
Operation: Addition; Solution: \( (4, -1) \) ### Problem 2
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multiple-choice question synonym is a word with the ______ meaning. opp…
B. same (assuming the options are labeled as A. opposite, B. same for clarity, with the second option being "same")
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an antonym is a word whose meaning is the ______ of another word. oppos…
A. opposite
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multiple-choice question an antonym is a word whose meaning is the ____…
The correct option is the one marked with *: Antonym (the option labeled "Antonym" with the * next to it).
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arrange the pieces to emphasize whom/what the action was done to. do no…
Simon Cowell's iPhone game will be played by me all the time.
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social media influencers—especially those with millions of followers—wi…
A. disparity
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arrange the pieces below to emphasize who/what did the action. do not c…
Me will hang a tire swing in Wednesday Addams's yard this summer.
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when using an inference for this particular text, the word unconvention…
B. different than what is normal (assuming the second option is labeled B, if the first was A. something that is ordinary, B. different than what is normal)
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arrange the pieces below to emphasize who/what did the action. do not c…
It will be I who will juggle bowling pins at Pua's birthday party. Wait, correction: The correct structure to emphasize the doer is using the passive voice with the agent marked b…
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the i in ideas stands for inference, which means to - state a truth in …
C. draw conclusions from the text (assuming the options are labeled A, B, C as per typical multiple - choice with the first option as A, second as B, third as C)
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10. the total number of views, in thousands, of an online video is mode…
The video will take approximately \( \boldsymbol{35.4} \) days (or more precisely around 35.38 days) to be viewed 50,000 times.
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arrange the pieces to emphasize whom/what the action was done to. do no…
The dress Heihei designed is worn by I whenever it's sunny.
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arrange the pieces to emphasize whom/what the action was done to. do no…
The dress designed by Heihei is what I wear whenever it's sunny.
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arrange the pieces to emphasize whom/what the action was done to. do no…
One of Enid Sinclair's sneakers is hidden by me every morning before swim practice.
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arrange the pieces below to emphasize who/what did the action. do not c…
Baby Mario's best friend visited The Taj Mahal in September last year.
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arrange the pieces below to emphasize who/what did the action. do not c…
Three wishes were granted to Belle Bottom and me by the genie.
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arrange the pieces to emphasize whom/what the action was done to. do no…
None's skating competition will be watched by me with 3-D glasses.
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think for yourself - make a judgement. just because an idea is the them…
True
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arrange the pieces to emphasize whom/what the action was done to. do no…
Joy's guitar recording is listened to by me on the ride to school every morning.
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under a per capita distribution, death benefits are paid : equally amon…
Equally among surviving beneficiaries
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2 jake starts cleaning his room at 3:51 pm. tell what time he is done c…
a. 4:00 PM b. 4:01 PM c. 4:10 PM d. 4:15 PM
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4) lilly records the age, in years, and the height, in inches, of the s…
No (the relation is not a function because the input age = 13 is paired with two different output heights: 65 and 67, violating the definition of a function where each input must …
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2) is the relation shown in the arrow diagram a function? * yes no i do…
Yes (the option selected, as per the function definition: if each domain element has exactly one codomain element, it's a function. Assuming the diagram shows each input with one …
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although interpretations of its meaning differ, ______ is both a great …
C. Guernica, Picasso's famous wartime painting
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question 7 (2.5 points) we are able to think critically because of our …
c) think back on what we are thinking, doing, or feeling ### Question 8
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question 11 (1 point) in a proposition, the predicate is always the mea…
B. a term that tells us what something is, what properties it has, or what it is doing.
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(a) fill in the blank. to find the lower quartile, find the of the lowe…
(a) median (b) upper quartile; median
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this system of equations is: consistent independent consistent dependen…
This system of equations is: $\boldsymbol{\text{inconsistent}}$ This means the system has: $\boldsymbol{\text{no solution}}$ --- # Second System (Middle Panel)
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when the data are skewed right, what is the typical relationship betwee…
The median is smaller than the mean.
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consider the following data. score | 50 | 60 | 70 weight | 0.60 | 0.30 …
55
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question 3 (1 point) can two propositions be equivalent if their predic…
A. Yes, because the predicates could have identical meanings.
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his height while on the second roller coaster, measured in feet from th…
On the second roller coaster, Michael's height switches between positive and negative approximately every 80 seconds. On the first roller coaster, Michael's height switches betwee…
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practice creating a conversion units of length customary system units &…
$\boldsymbol{\frac{1 \text{ mile}}{1.61 \text{ km}}}$ (the second option)
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directions: in the space provided, write the letter of the word or phra…
E. mortify ### Question 2
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decide and defend felipe tried the machine from the previous screen. he…
Yes
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4. initial value: constant ratio:
Initial Value: 2 Constant Ratio: 3
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6. y = 4(0.95)^t
The function \( y = 4(0.95)^t \) is an exponential decay function with an initial value of 4 and a decay rate of \( 5\% \) per unit increase in \( t \). For specific values: at \(…
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javier volunteers in community events each month. he does not do more t…
0, 1, 2, 3, 4, 5
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ellen has music practice three days a week. she practices for all of th…
C. Each probability is between zero and one, inclusive.
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ellen has music practice three days a week. she practices for all of th…
\( X = \) the number of days Ellen attends practice per week
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a company wants to evaluate its attrition rate, in other words, how lon…
2.37
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a company wants to evaluate its attrition rate, in other words, how lon…
\( 0.15 \)
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a printer is printing photos. for every 15 photos, the printer takes 3 …
| Number of photos | 15 | 30 | 35 | 45 | 50 | |-------------------|----|----|----|----|----| | Time (minutes) | 3 | 6 | 7 | 9 | 10 |
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what is 6,849,597 rounded to the nearest million?
7,000,000
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what is 779,098 rounded to the nearest hundred thousand?
800,000
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an article in the new england journal of medicine, reported about a stu…
D. To pick one person from the study who is Japanese American and smokes 21 to 30 cigarettes per day means that the person has to meet both criteria: both Japanese American and sm…
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an article in the new england journal of medicine, reported about a stu…
### Part 1: Interpreting "Japanese American AND smokes 21 to 30 cigarettes per day" - The word "AND" in probability (and set theory) means that both conditions must be satisfied. …
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the following passage is about the atacama desert in chile. select the …
The evidence is: "Frigid water in the ocean means fewer clouds, less rain. And so, along that particular coast, the land turned extremely dry. In what is called the Atacama Desert…
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writing and using a conversion factor units of capacity customary syste…
0.7 liters
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this list shows steps in an anticipation guide for integrating multiple…
Look at the titles to gain a sense of the topic being covered
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an article in the new england journal of medicine reported about a stud…
The person must be either Japanese American or smoke 21 to 30 cigarettes per day, and the sample space includes everyone in the study. (The last option in the list: "The person mu…
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an article in the new england journal of medicine reported about a stud…
D. The person must be either Japanese American or smoke 21 to 30 cigarettes per day, and the sample space includes everyone in the study. ### Part 2: Calculating the Probability
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use the aleks graphing calculator to solve the system of equations. 0.5…
The solution to the system of equations is \(x\approx - 2.47\) and \(y\approx2.74\) (rounded to the nearest hundredth).
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follow the three clues to find a hidden treasure. use the number line s…
\(2\frac{3}{8}+\frac{2}{8}=\boldsymbol{2\frac{5}{8}}\)
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9. -/2 points 0/100 submissions used details my notes ask your teacher …
B. The person must be either Japanese American or smoke 21 to 30 cigarettes per day, and the sample space includes everyone in the study. ### Part 2: Calculating the Probability F…
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4b follow the three clues to find a hidden treasure. use the number lin…
\(2+\frac{3}{8}=\boxed{2}\frac{\boxed{3}}{\boxed{8}}\)
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an article in the new england journal of medicine reported about a stud…
\(\boxed{\dfrac{13039}{50225}}\)
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an article in the new england journal of medicine, reported about a stu…
\(\frac{7013}{20090}\)
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ere are three histograms. histogram a histogram b histogram c (a) which…
B. Histogram B ### (b)
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first, choose a common denominator for \\(\\frac{1}{3}\\) and 24 next, …
\(\frac{11}{24}\)（即分子填\(11\)，分母填\(24\)）
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ross and clarice are making sandwiches for all the students in their cl…
If we assume 10 slices per loaf and 2 slices per sandwich, the number of loaves needed is $\boldsymbol{5}$. (If we consider end slices and 8 usable per loaf, it's 7.)
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first, choose a common denominator for \\(\\frac{1}{3}\\) and \\(\\frac…
第一个空填8，第二个空填3，即New Command 2: Start at \(\frac{8}{24}\)，Move \(\frac{3}{24}\) to the right。
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command 2: start at \\(\\frac{1}{3}\\). move \\(\\frac{1}{8}\\) to the …
24
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rewrite the command to show how many tenths are in each fraction. new c…
\(\frac{7}{10}\)（分子为\(7\)，分母为\(10\)）
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nabhitha has a collection of vintage action figures that is worth $420.…
$V = 420(1.13)^6$
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a store is having a sale on jelly beans and almonds today. the table be…
\(9x + 7y = 37\) \(3x + 5y = 17\) ### Part (b)
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although they had adopted american practices, the \five civilized tribe…
1. never 2. could not Completed text: The Cherokee constitution said that the borders of the Cherokee Nation would **never** change. It stated that all land in the Cherokee Nation…
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homework: section 2.4 due jan 26 by 11:59pm points 12 submitting an ext…
93
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estimate. which sign makes the statement true? 172? 3,344\\frac{1}{2} \…
\( < \)
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homework: section 2.4 due jan 26 by 11:59pm points 12 submitting an ext…
a. $-17.5$ b. $34.5$
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score: 4.8/9 answered: 7/9 question 1 score on last try: 0.6 of 1 pt. s…
5, 10, 13, 16, 20
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homework: section 2.4 score: 4.8/9 answered: 6/9 question 1 based on th…
5, 10, 12, 16, 20
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in a study, the sample is chosen by asking people on the street. what i…
Convenience
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determine whether the value is a parameter or statistic: in a random sa…
Statistic
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fill in the blank. 1 point write an inequality to express the number li…
1. $x < -1$ 2. $x \geq -60$
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simple interest directions: read each of the problems below, determine …
$\$2800$
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four distributions, labeled (a), (b), (c), and (d) are represented belo…
$\mu_{c}<\mu_{a}<\mu_{d}<\mu_{b}$
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a sample of 100 clients of an exercise facility was selected. let x = t…
\( \boxed{4} \)
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the main advantage of experiments over observational studies is that a …
a. a well-designed experiment can give good evidence that the treatment actually causes the response.
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4) craft fair profits the equation for the line of best fit is $y = 14.…
Artists who don't make any sales can expect to lose about $75.
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classify the data as qualitative or quantitative. if qualitative then c…
- Political party affiliation: Qualitative, Categorical - Diameter of a tumor (in mm, rounded to the nearest 0.1 mm): Quantitative, Continuous - Blood Pressure (in mm Hg, rounded …
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pumpkins the equation for the line of best fit is $y = 15x + 2$. accord…
There are about 15 additional seeds for every additional pound of weight.
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match the name of the sampling method descriptions given. situations - …
- choosing every 5th person on a list: e. Systematic - randomly select two tables in the cafeteria and survey all the people at those two tables: d. Cluster - ask all the students…
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given the data below are the number of students in each age group. ages…
12.5
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solving a system represented in a table the tables represent two linear…
$(-6, 0)$
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a large airline randomly selected 7 tickets to discount one day. use th…
a. ☑ Age ☑ # of Carry-On Bags ☑ # of Check-In Bags b. ☑ Gender ☑ Traveling From ☑ Traveling To
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twenty - five randomly selected students were asked the number of movie…
s: (a) $\bar{x} = \boxed{1.60}$ (b) $s = \boxed{1.15}$
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select all ratios equivalent to 28:14. 7:2 112:56 16:8
112:56, 16:8
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javier and ercilia are supervisors at a shopping mall. each was given t…
There is no way to determine from these numbers which survey was correct. ### Part (b)
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distances that people live from the mall. the difference in the results…
Histogram (a) depicts Ercilia's sample because it appears to show a larger range of values. ### Part (d)
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javier and ercilla are supervisors at a shopping mall. each was given t…
There is no way to determine from these numbers which survey was correct. ### Part (b)
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the following are goals scored by a soccer team at each game in their r…
| Goals | Frequency | Relative Frequency | |-------|-----------|--------------------| | 0 | 5 | 0.2 | | 1 | 6 | 0.24 | | 2 | 6 | 0.24 | | 3 | 2 | 0.08 | | 4 | 1 | 0.04 | | 5 | 5 |…
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in a study, the data you collect is weight in pounds. what is the level…
ratio
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if you do not show your work fully, you will not get full credit. you c…
- Gender: Qualitative (Categorical) - Clothing size (S/M/L): Qualitative (Ordinal) - BMI Index: Quantitative (Continuous) - Height (in meters, rounded to the nearest m): Quantitat…
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sampling is like stratified sampling, but the idea is that entire group…
Cluster