Statistiques
Analyse de données, distributions de probabilités et tests d'hypothèses.
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a university has 40,440 students. in a random sample of 165 students, 1…
2696
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the six - by - six grid contains the ages of actors in a youth shakespe…
13
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a random sample of 15 of the 75 competitors at a middle school gymnasti…
The mean height of the 15 gymnasts in the sample is $\boldsymbol{60.6}$ inches. This $\boldsymbol{\text{is}}$ a good estimate of the mean height of all the competitors because the…
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supply curve for haircuts breaking news new covid-19 safety rules reduc…
The supply curve for haircuts shifts to the left (a decrease in supply), meaning that at any given price, the quantity of haircuts supplied is lower than before the new COVID-19 s…
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a random sample of 15 of the 90 competitors at a middle school gymnasti…
The mean height of the sample is 64.7 inches. This is a good estimate of the mean height of all competitors because the sample is random, so it should be representative of the pop…
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a 64 - acre coconut farm is arranged in an 8 - by - 8 array. mika wants…
\(47.7\)
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aarons soccer team is voting on a new team flag. they are voting on thr…
$\frac{1}{6} < \frac{3}{8} < \frac{2}{3}$
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a manufacturer gets a shipment of 650 batteries of which 50 are defecti…
The sample does not produce a reasonable inference. The percentage is 20.
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5. carrie jumps 27 inches in a standing long jump contest. cynthia was …
0.25 feet
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3. which of the following is the shortest length? 1 mile 2 yards 6 feet…
3. 70 inches 4. 12 feet
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a tank contains 50 liters of oil at time ( t = 4 ) hours. oil is being …
114.9 liters
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sort the words according to the meanings of their shared roots. dermato…
- skin: dermatology, hypodermic - outside: extraterrestrial, extrasensory - first: protocol, protoplasm, protolanguage, protohistory
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sort the words according to the meanings of their shared roots. renovat…
- eat: omnivore, herbivore - new: renovation, innovate, novelty - foot: podium, bipod, octopod
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sort the words according to the meanings of their shared roots. retrogr…
- hide: encrypt, cryptanalysis, cryptic - step: retrograde, downgrade, degrade - seven: septuple, septet
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4 which scatter plot does not show an appropriate line of best fit? a b…
C
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sort the words according to the meanings of their shared roots. subaqua…
- foot: tripod, bipod, octopod - poison: antitoxin, endotoxin, intoxicate - water: subaquatic, semiaquatic
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sort the words according to the meanings of their shared roots. immorta…
- beside: parameter, paramedic, comparison - ball; globe: nonspherical, biosphere - death: immortal, mortality, postmortem
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sort the words according to the meanings of their shared roots. perenni…
- one; alone: monomania, monastery - year: perennial, annuity, superannuated, centennial - ear: binaural, auriscope
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sort the words according to the meanings of their shared roots. primal …
- bad; wrong: dystopia, dysplasia - follow: subsequent, sequel, postprimary - first: primal, primary, primitive
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sort the words according to the meanings of their shared roots. interse…
- cut: intersect, bisect - across: transfer, intransigent - before; forward: propel, prognosticate, proceed, projection
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sort the words according to the meanings of their shared roots. cardiac…
- heart: cardiac, myocardium - shield: armadillo, rearm, disarm, armor
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sort the words according to the meanings of their shared roots. hyperth…
- above; beyond: hyperthermia, hypercritical, hyperbole, hyperactive - sound: unison, assonance
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sort the words according to the meanings of their shared roots. psychic…
- mind: psychic, psychiatry, antipsychotic - attach: prefix, fixate, fixative
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sort the words according to the meanings of their shared roots. ovulate…
- egg: ovulate, anovulation, ovary - strength: fortitude, refortify, unfortified
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sort the words according to the meanings of their shared roots. acceler…
- speed: accelerant, accelerate, decelerate - same: simulation, similar, dissimilar
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sort the words according to the meanings of their shared roots. excavat…
**horn**: tricorn, cornucopia **hollow**: excavate, cavern, concave, cavernous
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sort the words according to the meanings of their shared roots. pedal q…
- foot: pedal, quadruped, pedometer, pedicure - word: lexicon, nonlexical
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sort the words according to the meanings of their shared roots. homicid…
- sit; seat: sedentary, sediment, sedative - kill: homicide, fratricide, regicide
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the function $f(t) = 4900(0.94)^{24t}$ represents the change in a quant…
The function is \(\boldsymbol{\text{decaying}}\) exponentially at a rate of \(\boldsymbol{6}\%\) every \(\boldsymbol{\text{hour}}\).
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sort the words according to the meanings of their shared roots. subjuga…
- seek: request, conquest, unquestioned - below: subjugate, substandard, submerge
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sort the words according to the meanings of their shared roots. dermati…
- skin: dermatitis, epidermis, hypodermic - sea: marine, mermaid, submarine
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if 32 men can reap a field in 15 days, in how many days can 20 men reap…
D. 24 days
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which equation represents an inverse variation? $y/x = 40$ $x = y/40$ $…
$y = \frac{40}{x}$
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if y varies inversely with x and y = 8 when x = 4, what is the value of…
B. 2
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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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score on last try: 0 of 9 pts. see details for more. at least one score…
26 ### 2. How many red Hondas are in the parking lot?
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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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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…
\( 0.15 \)
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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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an article in the new england journal of medicine reported about a stud…
B. The person must be both Japanese American and smoke 21 to 30 cigarettes per day, and the sample space is reduced to those who smoke 21 to 30 cigarettes per day. ### Part 2: Cal…
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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.)