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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a new homeowner is painting the walls of a room. the walls have a total…
B. The number of quarts needed is the area being painted divided by the area covered by a quart, rounded up to the nearest whole quart.
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iara makes salad dressing by mixing 8 spoonfuls of oil and some vinegar…
For the table: - Oil's original ratio: \( 2 \) - Vinegar's amount: \( 4 \) - Total dressing's amount: \( 12 \)
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question 1 of 25 a teacher asked her students how many pets they own. h…
D. The dot plot with 2 dots at 0, 4 dots at 1, 3 dots at 2, 1 dot at 3, 2 dots at 4, and 1 dot at 8.
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when exchanging us dollars (usd) for philippine peso (php) the number o…
First part (k): \( 42.384 \) Second part (PHP for 800 USD): \( 33907.20 \)
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suppose that y is directly proportional to x . 1) find the constant of …
s: 1) \( k = \boldsymbol{3.5} \) 2) \( y = \boldsymbol{3.5x} \) 3) \( y = \boldsymbol{98.0} \)
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now, plot the points to represent the aircrafts elevation 0, 1, 2, 3 an…
\( 0 \)
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question 5 ben takes 3 hours to wash 267 dishes, and frank takes 4 hour…
18 hour(s) 8.2 minute(s) (or rounded as per need, but following calculation steps above)
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divide 93.18 by 0.8 and round the quotient to the nearest tenth. 93.18 …
\( 116.5 \)
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a commercial aircraft is carrying passengers from new york to denver. o…
| Time since reaching cruising altitude (min) | Elevation (ft) | |---------------------------------------------|----------------| | 0 | 35,000 | | 1 | 35,000 | | 2 | 35,000 | | 3 …
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in the comics club, \\(\\frac{1}{3}\\) of the members draw their own co…
7
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one pump can empty a pool in 4 days, whereas a second pump can empty th…
The first pump's rate is $\frac{1}{4}$ of a pool per day. The second pump's rate is $\frac{1}{14}$ of a pool per day. The combined pump rate is $\frac{9}{28}$ of a pool per day. I…
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table of contents 〉 module 7: rational expressions and equations 〉 prac…
69.2 minutes
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now, plot the points to represent how far samara has traveled after 0, …
150
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the scatter plot shows the number of hours worked, x, and the amount of…
(for part a and b): (a) The equation of the line of best fit (approximate) is $y = 1.00x + 4.00$ (answers may vary slightly due to estimation). (b) For x=10, $y = 1.00*10 + 4.00 =…
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practice: proportions score: 5/6 answered: 5/6 question 6 the scale on …
Translate to a proportion: \(\boldsymbol{\frac{1}{30}=\frac{3.6}{x}}\) (where \( x \) is the actual distance in kilometers) The actual distance is \(\boldsymbol{108}\) kilometers.
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the table shows how many pieces of fruit you collected in each round. l…
3
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practice: proportions score: 4/6 answered: 4/6 question 5 calvins concr…
Translate to a proportion: \(\boldsymbol{\frac{18}{1323}=\frac{36}{x}}\) (where \(x\) is the cost for 36 cubic yards) \(\boldsymbol{2646}\) for 36 cubic yards of concrete
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collect \\(\\frac{1}{3}\\) of the 24 pieces of fruit. how many pieces o…
8
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the scatter plot shows the time spent watching tv, x, and the time spen…
(a) \( y = -0.83x + 27.32 \) (values may vary slightly based on point selection) (b) 17.36 hours
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collect \\(\\frac{1}{3}\\) of the 12 pieces of fruit. how many pieces o…
4 (corresponding to the option "4" among the choices)
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table of contents > module 7: rational expressions and equations > prac…
Translate to a proportion: \(\boldsymbol{\frac{2}{1}=\frac{x}{9}}\) \(x=\boldsymbol{18}\) times in 9 months
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the scatter plot shows the time spent studying, x, and the quiz score, …
(a) The approximate equation of the line of best fit is $y = 1.20x + 13.00$ (answers may vary slightly based on point selection). (b) The predicted quiz score for a student who sp…
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table of contents > module 7: rational expressions and equations > prac…
Translate to a proportion: $\boldsymbol{\frac{5}{1}=\frac{x}{15}}$ \( x=\boldsymbol{75} \) times in 15 weeks
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a local high school has both male and female students. each student eit…
s: (a) $\boxed{0.6}$ (b) $\boxed{0.15}$ (c) $\boxed{0.25}$
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at a schools open house, t - shirts and sweatshirts were sold. each ite…
s: (a) \( \boldsymbol{0.4} \) (b) \( \boldsymbol{0.16} \) (c) \( \boldsymbol{0.4} \)
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chayton read a report that said the probability that a randomly selecte…
\(0.6\) (or \(\frac{3}{5}\))
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dr. edwards is a veterinarian who sees only dogs and cats. in each appo…
(a) \(P(\text{vaccine}) = 0.5\) (b) \(P(\text{cat and vaccine})=0.3\) (c) \(P(\text{cat}|\text{vaccine}) = 0.6\)
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a company has both male and female employees. the company has shirts an…
(a) \(\approx 0.33\) (b) \(\approx 0.78\)
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write an expression for the distance between the churchs highest and lo…
48
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a city planner surveyed 171 residents. for each, the planner recorded w…
(a) $\approx 0.42$ (b) $\approx 0.95$
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on a particular day, a restaurant that is open for lunch and dinner had…
(a) \(\boxed{0.64}\) (b) \(\boxed{0.78}\)
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task b: lap predictions mio is on the running team. she runs 4 laps in …
$\frac{2}{3}$ laps per minute ### 2. How many minutes per lap does Mio run?
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here are the shopping times (in minutes) for a sample of 6 shoppers at …
\(4.20\)
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4. black rhinos are endangered, with only 4,400 left in the world. tris…
Tristan leyó el número correctamente. La notación estándar para 4,400 es "four thousand, four hundred" (cuatro mil cuatrocientos), ya que se descompone en 4 unidades de mil ($4\ti…
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the monthly salaries (in thousands of dollars) of a sample of 6 sales r…
\( 2.10 \)
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the tourist bureau of the caribbean islands surveyed a sample of 6 unit…
\(2.45\)
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right after takeoff, a hot air balloon ascends at a constant rate of 40…
For time 1 min: 400 ft For time 2 min: 800 ft For time 3 min: 1200 ft For time 4 min: 1600 ft
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the graph below shows the value of the us dollar versus the canadian do…
March 2013
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a scale shows a container’s weight to be 80.3 pounds. you need to know …
For part (a), the proportion is \(\frac{x}{80.3}=\frac{1}{2.2}\). For part (b), \( x = \frac{80.3}{2.2}=36.5\) (if we were to calculate the value, but since we don't round, the ex…
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an advertisement for a fish tank says the volume of the tank is 28 gall…
(a) The proportion is $\frac{3.8}{1}=\frac{x}{28}$ (or equivalent proportion like $\frac{1}{3.8}=\frac{28}{x}$ but the first one is more intuitive for liters per gallon). (b) The …
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the following are distances (in miles) traveled to the workplace by 18 …
(a) The \(10^{\text{th}}\) percentile: \(\boxed{5}\) miles (b) The \(75^{\text{th}}\) percentile: \(\boxed{28.5}\) miles
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task a: running teams four schools have running teams. each team trains…
0.3 kilometers, 1,200 feet, 400 meters, \( \frac{1}{2} \) kilometers
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picture factors of 24: factors of 40: used in a sentence i found the gc…
The subfield is Mathematics - Number Theory (or Algebra).
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2. analyze art, photos, and captions how does the caption for the photo…
makes something more likely to happen
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the length of human pregnancies is approximately normal with mean \\( \…
0.1587
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in february, although you’re my subordinate at work, i’ll let you desig…
"You're" is a contraction meaning "you are". "Your" is a possessive adjective meaning "belonging to you". ### Sub - question 2
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consider a random variable x that is normally distributed. complete par…
The mean of the sampling distribution of the sample mean is \(\boldsymbol{30}\) (as already filled, which is correct based on the CLT). #### Part (c)
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consider a random variable x that is normally distributed. complete par…
30
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at the zoo, for every 6 adult camels, there are 5 baby camels. there ar…
Baby camels: 20 Adult camels: 24 Total ratio: 11
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5. which graph best represents the total number of square feet that can…
s: Question 5: The correct graph is the third one (assuming labels, but based on calculation, the graph with slope 75, passing through (0,0) and (8, 600) – likely the third graph …
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of a squirrels hidden nuts, for every 5 that get found, there are 3 tha…
15
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question 23 of 25 there are 8 brooms and 6 mops in a janitor’s closet. …
A. $\frac{3}{7}$
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question 22 of 25 which numbers are the means of the proportion shown b…
C. 3 and 20
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thursday 1. write one hundred sixty thousand, five hundred eighty - two…
\(1\times100000 + 6\times10000+5\times100 + 8\times10+2\times1\) (o también se puede escribir como \(100000+60000 + 500+80 + 2\))
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example why does elisenda feel relief when the angel finally flies away…
Arts - Literature
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how do the graphs in career planning for high schoolers contribute to t…
D. by providing data about careers and annual mean wages
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1. in 2009, mrs. sullivan discovered that children ages 6 - 11 years ol…
b. 69,108
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1. what is the primary purpose of organized labor? to unite workers in …
A. To unite workers in negotiating wages and working conditions collectively ### Question 2
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a genre is a(n) object with meaning category of writing or speech. reas…
B. category of writing or speech
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for parts (a) through (d), write a fraction to approximate the shaded p…
$\frac{4}{8}$ (or simplified to $\frac{1}{2}$)
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4. black rhinos are endangered, with only 4,400 left in the world. tris…
Tristan leyó el número correctamente, ya que 4,400 se lee como "four thousand, four hundred", que coincide con la lectura de Tristan. El padre leyó "44 hundred", que numéricamente…
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tatenda takes t seconds to mow a square meter of lawn and ciara takes c…
C. \( 2800t - 3000c \) D. \( 4(700t - 750c) \)
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round 473 to the nearest hundred.
500
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3. sixty-four thousand, one hundred six = 4. black rhinos are endangere…
\( 64106 \) ### Pregunta 4:
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complete the next sequence using 6 facts. (chart with rows 1 - 10 and c…
The filled cells in row 6 (from column 2, 4, 5, 6, 8, 9) are: 12, 24, 30, 36, 48, 54. So the sequence is 6, 12, 18, 24, 30, 36, 42, 48, 54, 60.
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for parts (a) through (d), write a fraction to approximate the shaded p…
$\frac{1}{8}$
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6,918 69,108 69,180 690,108 20,000 + 400 + 80 + 2 = sixty - four thousa…
\(20482\) ### Second Sub - Question: sixty - four thousand, one hundred six =
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complete the next sequence using 3 facts. 1 2 3 4 5 6 7 8 9 10 1 3 2 2 …
- Row 3, column 3: \(9\) - Row 6, column 3: \(18\) - Row 7, column 3: \(21\) - Row 9, column 3: \(27\) - Row 10, column 3: \(30\)
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je raisonne lou travaille chez aquamédic, un centre de soins pour anima…
16 (assuming total meters today is 18)
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final review #1 question 27 of 35 (0 point) | question attempt: 1 of un…
2200
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every visitor who visits a travel fair receives a free travel bag. the …
3
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module distinguishing between two types of situations choose the tape d…
\( 7x + 3 = 52 \) (the third option: \( 7x + 3 = 52 \))
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the table below classifies each of 30 moons by its diameter and the pla…
\(\frac{4 + 4}{30} \times 100\% = \frac{8}{30} \times 100\% \approx 26.67\%\) (or \(\frac{4}{15} \times 100\% \approx 26.67\%\))
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choose the tape diagram and equation that best represent the situation.…
The top tape diagram (with 6 sections of \( x + 2 \)) and the equation \( 6(x + 2)=54 \)
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ray is buying some ginger roots to brew some fresh ginger ale. the pric…
C. The percent, as a decimal, of the original price that Ray pays
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gabriel et sophie font une expédition en bateau. en séloignant des côte…
\( 13^\circ \text{C} \)
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answer the question correctly to continue: which statement best describ…
Simple interest is calculated on principal only while compound interest is calculated on principal and accrued interest.
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a. the fraction representing the shaded portion as part of the whole is…
$\frac{1}{2}$
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evelyn is making bows from blue ribbon and white ribbon. she uses 6 in.…
White ribbon will run out first.
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for parts (a) through (d), write a fraction to approximate the shaded p…
$\frac{1}{10}$
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2. the function ( s(t) = 3.4t + 8.62 ) models the amount of raider buck…
\( \{t\in\mathbb{R}\mid0\leq t\leq9\} \) ### Part b:
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jack had 3 bags of golf balls with b balls in each bag; then his friend…
\( 3b + 6 \)
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for each number below, is it even or odd? 72 129 83 25 588 odd even
- 72: Even (mark the circle under Even) - 129: Odd (mark the circle under Odd) - 83: Odd (mark the circle under Odd) - 25: Odd (mark the circle under Odd) - 588: Even (mark the ci…
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liam had $250. then, he and his classmates bought a present for their t…
$250 - \frac{p}{24}$
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rewrite the fraction in the sentence below as a percentage. in 2009, a …
55
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rewrite the fraction in the sentence below as a percentage. in a certai…
92
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linear equations word problem on proportions: problem type 1 jose drove…
8.1
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1 epic poems generally start in medias res, which means they start wher…
D. In the midst of things
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10 the number of hours in the lifespan of a certain brand of light bulb…
1) 6.4% ### Problem 11
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decimals and percents word problem on unit rates associated with ratios…
(a) 2.1 pounds per dollar (b) 0.16 acres per pound
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answer each part. if necessary, round your answers to the nearest hundr…
(a) 3 pages per minute (b) 0.61 dollars per pound
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decimals and percents word problem on unit rates associated with... 0/5…
(a) \( \boldsymbol{0.28} \) hours per dollar (b) \( \boldsymbol{8} \) minutes per mile
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a rock sits on the edge of bridge that passes over a river. when a car …
C. \(0\leq x\leq0.94\)
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write 92% as a fraction in simplest form.
\(\frac{23}{25}\)
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in a board game, negative number cards represent moving backward and po…
B. Not moving any spaces
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write 95% as a fraction in simplest form.
\(\frac{19}{20}\)
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5.1d.a.4: normal distributions 1 1 suppose two sets of test scores have…
2) Data set two has the greater variability. ### Problem 2
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here are the scores of 13 students on a geography test. 62, 67, 71, 71,…
Five - number summary: Minimum: \( 62 \) Lower quartile: \( 71 \) Median: \( 87 \) Upper quartile: \( 93 \) Maximum: \( 95 \) Interquartile range: \( 22 \)
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25. seth earns $7 per hour working at the library. write and solve an i…
The inequality is \( 7h \geq 175 \) and the solution is \( h \geq 25 \), meaning Seth must work at least 25 hours.
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tameka pilots a hot air balloon. she lowers the balloon five times, goi…
El entero es -15. Este entero indica que la elevación del globo aerostático disminuye en 15 metros cada vez que Tameka lo baja.