Estadística
Análisis de datos, distribuciones de probabilidad y pruebas de hipótesis.
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the data seems to have a linear trend. so, melissa wants to find a line…
$a = -0.914$ $b = 9.558$ $r^2 = 0.885$ $r = -0.941$ The linear equation that best fits the data is $y = -0.914x + 9.558$ When $x=1$, $y = 8.644$
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melissa collected the following data from a random sample. | x | 2 | 3 …
The remaining three points plotted on the scatter plot are: 1. Point at $(6, 5)$ 2. Point at $(7, 2)$ 3. Point at $(9, 2)$
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1 ethan and bridget earn money by babysitting. last week, ethan earned …
A. Bridget earned more money per hour than Ethan.
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the scatter plot shows the time spent watching tv, x, and the time spen…
(a) $y = -0.71x + 25.84$ (b) 17.32 hours
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the scatter plot shows the number of hours worked, x, and the amount of…
(a) $y = 0.75x + 7.00$ (b) $\$14.50$
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by attempting this quiz/exam, i verify: - i will adhere to the honor co…
True
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scatter plot shows the time spent texting, x, and the time spent exerci…
(a) $y = -0.80x + 8.50$ (b) $3.70$ hours
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by attempting this quiz/exam, i verify: - i will adhere to the honor co…
D. Gilgamesh's mother
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by attempting this quiz/exam, i verify: - i will adhere to the honor co…
A. It caused him to confront his own mortality.
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homophones are words that sound alike but have different spellings and …
### 1. Respuesta para la primera oración: # Explicación: ## Paso 1: Analizar el contexto La primera oración es "Lisa raised her ____ in doubt at Reggie's story. He was a ____ liar…
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choosing solutions based on the context of the problem the temperature,…
All values of \(t\) must be positive. A viable solution is (10, 50).
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a company that makes haircare products had 2,000 people try a new shamp…
0.7
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2. what is usually meant by the phrase <i>world literature</i>? literat…
literature written by writers from different parts of the world
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part 1 of 2 a company that makes healthcare products had 2,000 people t…
The value of \(p\) is \(0.7\), so the proportion is \(\frac{14}{2000}=\frac{0.7}{100}\) (the box should be filled with 100, and the percentage \(p = 0.7\)).
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the rabbit population in a certain area is 500% of last year’s populati…
60
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dan is riding his bike. the number of revolutions (turns) his wheels ma…
(a) $\frac{1}{10}$ revolution(s) (b) $\frac{1}{10}$
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one concept in \on the arsenal of democracy\ is america following its s…
Self-interest includes helping our allies defend themselves.
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instructions: enter your jeopardy gar done, click save & finish. dismis…
s: 100 - point question: \( \boldsymbol{300} \) 200 - point question: \( \boldsymbol{2} \) 300 - point question: \( \boldsymbol{400} \) 400 - point question: \( \boldsymbol{250} \…
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mastering concepts and skills 1. short songs? david’s ipod has about 10…
Let's solve problem 1(a) first: ### Problem 1(a) We have a population of song play times with mean $\mu = 225$ seconds and standard deviation $\sigma = 60$ seconds. We take an SRS…
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the rabbit population in a certain area is 500% of last year’s populati…
\(\frac{300}{w}=\frac{\boldsymbol{500}}{\boldsymbol{100}}\)
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use of the machine. the total cost, c, of making n copies at either sto…
1. Number of copies for equal cost: 15 2. Small number of copies (e.g., 5): Choose Store Z (lower cost: $4 vs. $10 at Store W) 3. Large number of copies (e.g., 20): Choose Store W…
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. shane broke the glass in his moms favorite picture frame. he decided …
$\$42$
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chau is walking. the number of calories he has burned varies directly w…
(a) 2 calorie(s) (b) 2
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4. in october it snowed 0.9 inches. it snowed 0.6 inches less the follo…
0.3 inches
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chau is walking. the number of calories he has burned varies directly w…
(a) 2 calorie(s) (b) 2
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the time spent dancing (minutes) and the amount of calories burned can …
The second table: | Time (t) | Calories (c) | |----------|--------------| | 0 | 0 | | 5 | 27.5 | | 10 | 55 | | 15 | 82.5 |
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pablo is riding his bike. the number of revolutions (turns) his wheels …
(a) 4 feet (b) $\frac{1}{4}$
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graph the system of equations. choose the correct answer below. help me…
B
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1. compare. 6.16×10² ○ 616
$6.16 \times 10^2 = 616$
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reasoning the cost of making copies at store w is $10 regardless of the…
Correct system of equations: B. Store W: $c=10$; Store Z: $c=0.60n+1$ - For a small number of copies ($n < 15$), choose Store Z, as its total cost is lower. - For a large number o…
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tammy is filling up a tank with water for some fish in a pet shop. she …
(a) $2 < x < 4$ (b) On the number line: - Place an open circle at 2, an open circle at 4. - Shade the region between 2 and 4.
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identifying continuous and discrete relationships read each relationshi…
## Continuous Graph: the height of a plant as it grows amount of fuel and distance traveled ## Discrete Graph: amount of chairs for each table number of students per teacher
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the information from the settings menu titled \about\ for an apple ipod…
56%
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i) pam is hosting a large dinner party. she plans to make a vegetable s…
\( t\geq5.25 \) ### Part (ii) To graph \( t\geq5.25 \): 1. Plot a closed dot (since the inequality is "greater than or equal to", the endpoint 5.25 is included) at \( t = 5.25 \) …
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the cost of renting a canoe to use on river y costs $23. the cost of re…
1. System of equations: River Y: $c=23$ River Z: $c=2n+13$ 2. Correct graph: Option B 3. Hours for equal cost: 5
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whitney and her friend tiana are making milkshakes for dessert. whitney…
\( p > 6 \)
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a blight is spreading in a banana plantation. currently, 458 banana pla…
848
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lucias family likes to have bagels for breakfast. at the bakery, lucia …
\( b < 12 \) ### Part 2: Graphing the Inequality
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the box plots show a random sample of wait times for two food trucks at…
2
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select the correct answer. read paragraph 2. (2) \if you only had more …
D. make him famous
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the rabbit population in butler county, which is currently at 6,004 rab…
12962
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select the correct text in the passage. which sentence slows down the p…
(8) I counted on all this noise to reach my bench unnoticed, but as it happened, that day everything was quiet, like a Sunday morning. Through the open window I saw my comrades al…
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the box plots show the heights of sunflower plants in a random sample o…
Field A typically has shorter plants. You can tell because the median of its sample is less than that of the other field.
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last year, gina planted 9 tomato plants in her garden and made pasta sa…
\( t \geq 9 \)
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select the correct text in the passage. which sentence slows down the p…
(9) But no! Monsieur Hamel looked at me with no sign of anger and said very gently: "Go at once to your seat, my little Frantz; we were going to begin without you." (Wait, correct…
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use the number line to subtract. -5 - 4 (a) draw two arrows to show -5 …
(a) First arrow: From 0 to $-5$ (leftward). Second arrow: From $-5$ 4 units left to $-9$. (b) $-9$
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nature’s wonders read “nature’s wonders” and answer each question. 1 th…
1. B. The reef is sixteen hundred miles long. 2. A. The trench is mysterious, but people will still be able to learn things about it. 3. C. look 4. A. sight 5. A. by making sure t…
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matter? private thoughts of the characters? racters? what does it mean?…
Romeo is reluctant to tell Juliet who he is because their families (Montagues and Capulets) are bitter enemies. He fears that if Juliet learns he is a Montague, her favorable opin…
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the box plots show the heights of sunflower plants in a random sample o…
The random samples are likely to be representative of the population of sunflower plants at each field.
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select the correct answer. what is a major theme of the text? a. the ab…
B. Resolving inner conflict may mean dealing with the past.
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franklin is a member of his schools drama club. everyone in the club is…
\( t \geq 35 \) ### Part (b)
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2. use this number line to show the numbers $\frac{1}{4}$, $\frac{2}{4}…
To show \(\frac{1}{4}\), \(\frac{2}{4}\), \(\frac{3}{4}\), and \(\frac{4}{4}\) on the number line (with 0 on the right and extending left): - \(\frac{1}{4}\): 1 unit left of 0 (ea…
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starglow seeker is katies favorite game to play at the arcade. katie wa…
\( s > 186 \)
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select the correct answer. read the excerpt from paragraphs 15 and 16. …
A. It emphasizes that not being able to learn French will have a major impact on Frantz.
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select the correct answer. read the excerpt from paragraph 2. (2) my ch…
C. completely consumed her
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9. national debt in 1915, the u.s. national 3.1×10⁹ dollars. in 2015, t…
The U.S. national debt in 2015 was approximately \(1.829\times10^{13}\) dollars. ### Problem 10 (Simplify the expression \(\frac{a^{7}b^{9}}{ab^{5}}\))
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which statement primarily appeals to pathos to support the position tha…
After switching to a standing desk—like many Americans, I used to spend most of my day sitting—I experienced subtle but meaningful health benefits: I improved my posture and found…
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select the correct answer. read the excerpt from paragraph 5 of \how th…
C. strengthened
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read paragraph 9. (9) will did not answer, but both listened intently t…
A. engaging conversation
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4.7. copy each expression and simplify it. show all of your steps. home…
\( 7.13 \) ### Part b: \( 6.1 - 1.536 \)
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at a clothing store, all items are on sale for 30% off. what fraction r…
$\frac{3}{10}$
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students in a jewelry - making club store their beads in 2 containers. …
15
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this graph shows a trip on a bike trail. the trail has markers every 0.…
1. a. 2.4 - 2.6 hours 2. d. 1.4 - 2.2 hours 3. e. 0.8 - 1.4 hours 4. c. 2.2 - 2.4 hours 5. b. 0 - 0.8 hours 6. f. 2.6 - 3 hours
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drag each tile to the correct box. not all tiles will be used. match th…
besiege $\longleftrightarrow$ surround deep trenches $\longleftrightarrow$ wrinkles proud livery $\longleftrightarrow$ charms tatter'd weed $\longleftrightarrow$ destroyed and was…
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use the aleks calculator to evaluate each expression. round your answer…
$\log 32.5 \approx \boxed{1.512}$, $\ln \sqrt{3} \approx \boxed{0.549}$
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solve for x. $5 + \\log_{2}(-5x) = 9$
\(-\frac{16}{5}\)
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select the correct answer. look at paragraphs 3–7. how does the pacing …
B. Paragraphs 3, 4, and 6 are longer, more detailed paragraphs while paragraphs 5 and 7 are brief and allow the reader to take in the shocking information more quickly which helps…
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reasoning the cost of making copies at store w is $9 regardless of the …
Correct equation system: D. Store W $c=9$, Store Z $c=0.70n + 2$ Correct graph: B - Number of copies for equal cost: 10 - Small number of copies ($n<10$): Choose Store Z (lower co…
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alda is making banners from a roll of paper that is 4.11 meters long. s…
Aida should have put 1 one in each of the groups. 4 ones can be shared equally among 3 groups; 1 one in each group. She should have regrouped any left over ones and put 3 **tenths…
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this property means that reversing the order of addition will not affec…
10340
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21. jackson played a video game for \\(\\frac{1}{6}\\) hour hailey play…
Hailey played the video game for a greater amount of time. When we rewrite the fractions with a common denominator, $\frac{1}{3}$ is equivalent to $\frac{2}{6}$, which is larger t…
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day 4 the storms generated dust clouds so dense they blocked sunlight, …
1. c. created 2. b. spread 3. The underlined clues are: "The storms generated dust clouds so dense they blocked sunlight", "It dispersed dirt across hundreds of miles", and the de…
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problem solving 16 felicia drew the pictures at the right to show \\(\f…
Felicia incorrectly claimed $\frac{3}{8}$ is greater than $\frac{3}{4}$. In reality, $\frac{3}{8} < \frac{3}{4}$ (since $\frac{3}{4} = \frac{6}{8}$ and $\frac{3}{8} < \frac{6}{8}$…
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18. tina completed \\(\\frac{2}{3}\\) of her homework. george completed…
George completed a greater fraction of homework.
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math 8: term 2 homework #8 due friday! name? 1. a researcher studied th…
1. C. An expected temperature of $63.2^\circ\text{F}$ when the cricket has chirped 94 times. 2. A. A student's expected quiz score if they spent no time on their homework.
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choose the number that is equal to 3.4 when rounded to the nearest whol…
340.811
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select the number that is represented by point a on the number line. 6.…
6.038
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a construction crew is lengthening a highway as part of a project. the …
$y=10x+20$
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9) evaluate: 7 × 3² + (83 − 42) 10) 20% of students were absent last fr…
9) 104 10) 225
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from maus by art spiegelman my daughter! how can she manage alone - wit…
They were sent to concentration camps.
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rumi and noam are learning to rock climb. rumi starts at the bottom and…
Rumi: 50 feet Noam: 50 feet
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rumi and noam are learning to rock climb. rumi starts at the bottom and…
Rumi: 20 feet Noam: 26 feet
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tony is riding his bike. the distance he travels varies directly with t…
(a) $\frac{1}{3}$ (b) $3$
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select the correct answer. given that a function, g, has a domain of -2…
A. \( g(-13) = 20 \)
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question logan has $3.15 worth of dimes and quarters. he has twice as m…
There are $\boldsymbol{14}$ dimes and $\boldsymbol{7}$ quarters.
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olive is a manager at a toy packaging company. the company packs 80 box…
B (the graph with a steep line from 0 - 3 reaching 240, horizontal from 3 - 5, then a less steep line from 5 - 9)
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marques is a high school basketball player. in a particular game, he ma…
Marques made 2 three - point shots and 6 free throws.
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a certain type of trail mix contains 40% nuts. how many pounds of nuts …
C 30
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the scatter plot shows the time spent studying, x, and the quiz score, …
(a) $y = 1.00x + 15.00$ (b) $75.00$
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roger is playing a mystery number game, and he is given these clues - t…
Roger is incorrect because 52.965 rounded to the nearest whole number is 53. The mystery numbe
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the weights of four kittens are shown in pounds. 8.6, 8\\frac{5}{8}, 8.…
J. $8\frac{3}{4}$, $8.72$, $8\frac{5}{8}$, $8.6$
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students were asked to decompose 67.485. their responses are recorded i…
George
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warm-up here are two new number machines. try to find a number to put i…
There is no such number that will produce the same output for both machines, as the simplified equations result in a false statement ($10=12$), meaning there is no solution for $s…
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select the correct answer. owen has enough materials to build up to 10 …
B. D: \( 0 \leq b \leq 10 \), R: \( 0 \leq W(b) \leq 120 \)
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question 4 (multiple choice worth 5 points) (01.06 mc) select the true …
D. 745.428 rounded to the nearest hundredth is 745.43
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select the statement that correctly compares two numbers 4.091 = 4.901 …
D. $0.36 > 0.187$
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select the statement that orders the numbers from least to greatest. us…
B < C < A
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jacob is going on a road trip across the country. he covers 10 miles in…
A. The distance traveled between 10 minutes and 15 minutes is constant.
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a coach counted 40 players at a sports camp. of the players, 30% were b…
B 12
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aldo is driving on the highway. he begins the trip with 12 gallons of g…
(a) $G = 12 - \frac{D}{25}$ (b) Graph: Draw a straight line connecting the points $(0, 12)$ (on the G-axis) and $(300, 0)$ (on the D-axis), with the line only extending in the fir…