Estadística
Análisis de datos, distribuciones de probabilidad y pruebas de hipótesis.
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this type of public land has the highest protections, meaning that you …
A. National Wilderness Areas
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question 24 (2 points) listen we know that as samples get large enough,…
Central Limit Theorem
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the frequency distribution shown is constructed incorrectly. class freq…
- class width is not uniform - a class is omitted
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a city has a population of 7000. its population is decreasing at a rate…
$7000(0.9875)$ (with the implicit exponent $x$ for time periods)
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(c) 0.444… can this be written as a fraction? ○yes ○no give the reason.…
### For (c) 0.444... Can this be written as a fraction? Yes Give the reason: This is a repeating decimal. ### For (d) 0.714352... Can this be written as a fraction? No Give the re…
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fill in the blank 1 point a city has a population of 7000. its populati…
$7000(1 + 0.028)$ (with the understanding that this is the base form of the exponential growth function for the population, with $x$ representing the time variable)
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find class boundaries, midpoint, and width for the class. 42 - 46 part:…
- Class boundaries: $41.5 - 46.5$ - Midpoint: $44$ - Class width: $5$
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for each number, determine if it can be written as a fraction, then sta…
(a) Can this be written as a fraction? Yes Give the reason. This is a terminating decimal. (b) Can this be written as a fraction? Yes Give the reason. This is a repeating decimal.
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(c) 0.555 can this be written as a fraction? ○yes ○no give the reason. …
### For (c) 0.555: Can this be written as a fraction? Yes Give the reason: This is a terminating decimal. ### For (d) $0.2\overline{3}$: Can this be written as a fraction? Yes Giv…
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a city has a population of 7000. its population is decreasing at a rate…
7000(0.969)
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5. the chance of a pregnancy resulting in twins is 3%. a doctor at an o…
E) $\boldsymbol{\dbinom{50}{4}(0.03)^4(0.97)^{46}}$
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4. alison knows baseball statistics and follows major league baseball. …
A) 20
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fill in the blank 4 points a city has a population of 7000. its populat…
1. The correct exponential function: $\boldsymbol{f(x) = 7000(1-0.0175)^x}$ 2. Simplified equation: $\boldsymbol{f(x) = 7000(0.9825)^x}$ 3. Scenario classification: **exponential …
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(a) answer the questions below. is there a cluster from 31 to 32? ∘yes …
(a) Is there a cluster from 31 to 32? No Is there a gap from 26 to 27? Yes Is the data set symmetric? No (b) The peaks of the data set are at 23 ounces and 33 ounces.
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3. customers use the starbucks app for a variety of reasons, such as vi…
a. Random variable: $X$ = number of sample customers using the Starbucks app. $X$ follows a binomial distribution: $X \sim Binomial(n=20, p=0.614)$ b. $\approx 0.175$
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(a) answer the questions below. is there a cluster from 9 to 12? ∘yes ∘…
(a) - Is there a cluster from 9 to 12? Yes - Is there a gap from 7 to 8? Yes - Is the data set symmetric? No (b) The peak of the data set is at 9 miles.
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answer the questions below. (a) the 9 members of a fraternity have the …
(a) Median (b) Mean (c) Mode
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9. function c works like this: input: time output: a student’s monday c…
\( C(10:00)=\text{English} \) ### Part (b)
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a. $2\\frac{3}{4}$ $2\\frac{7}{8}$
\( \frac{1}{8} \)
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1. partially visible has 8 kittens. how can she evenly place them in gr…
4 groups of 2 ### Problem 2 (Jason has 50 plants into groups of 5)
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answer the questions below. (a) as part of the u.s. census, the number …
(a) Mode (b) Mean (c) Mean
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2. in a large shipment of smartphone chargers, only 2% are found to be …
a. $X$ is binomial because there are a fixed number of independent trials, two mutually exclusive outcomes, and a constant probability of "success" (finding a defective charger). …
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swer the questions below. (a) as part of the u.s. census, the number of…
(a) Mode (b) Mean (c) Mean
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answer the questions below. (a) the 9 participants in an experiment had…
(a) Mean (b) Mode (c) Median
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8. the graph of function ( f ) gives the distance of a dog from a post,…
\( f(20)\approx1 \) foot, \( f(140)\approx0 \) foot (approximate values based on the graph's grid and shape)
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a class is taking a trip to the aquarium. the teacher has received only…
A. $y_1$
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a class is taking a trip to the aquarium. the teacher has received only…
A. $y_1$
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which estimate is closest to the mean of the data distribution? 14 feet…
9 feet
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(elearning 1-28) 1. for each of the following situations, determine whe…
a. Yes, X has a binomial distribution. It meets all binomial criteria: fixed n=20 independent trials, two outcomes, constant p=0.9 success probability, and X counts the number of …
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7. the height of water in a bathtub, w, is a function of time, t. let p…
a. \( P(0) = 0 \) matches ii. The bathtub starts out with no water. b. \( P(4) = 10 \) matches iv. The height of the water is 10 inches after 4 minutes. c. \( P(10) = 4 \) matches…
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the table shows a function. is the function linear or nonlinear? linear…
nonlinear
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the system of equations is solved using the linear combination method.\…
There are no solutions to the system because the equations represent parallel lines.
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6 the function ( a(x) ), where ( x ) is a letter, assigns a value based…
Andre
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according to a recent survey, 81 percent of adults in a certain state h…
$\approx0.090$ (or 9.0% when expressed as a percentage)
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according to a recent survey, 31 percent of the residents of a certain …
A. $\dbinom{50}{40}(0.31)^{40}(0.69)^{10}$
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2. draw area models to show the decompositions represented by the numbe…
To solve the problem of showing the decomposition of the given fractions (e.g., \(\frac{2}{3}\) and \(\frac{4}{6}\), \(\frac{4}{5}\) and \(\frac{8}{10}\)) and their relationship: …
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5. use the method to compare the fraction pairs. record your answer usi…
For $\frac{5}{3}$ and $\frac{9}{5}$: $\frac{5}{3}<\frac{9}{5}$; For $\frac{8}{5}$ and $\frac{5}{8}$: $\frac{8}{5}>\frac{5}{8}$; For $\frac{2}{3}$ and $\frac{4}{5}$: $\frac{2}{3}<\…
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one of them is that happy moment at the soda fountain...with a tinkling…
C. a more positive connotation
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juan has 3 dimes, 1 penny, 3 nickels, and 2 quarters in his pocket. he …
$\frac{1}{9} \cdot \frac{3}{9} \cdot \frac{3}{9}$ (the second option: $\frac{1}{9} \cdot \frac{3}{9} \cdot \frac{3}{9}$)
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last month, a car dealership sold 184 new cars. to determine customer s…
46 (Option: 46)
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the table has two columns. the first column has values -2, -1, 0, 1, 2;…
C. {-2, -1, 0, 1, 2} (assuming the third option is labeled C; if the original options had labels like A, B, C, D, E with the third being C, then the answer is C. {-2, -1, 0, 1, 2})
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adults and students relationship chart, x - axis is adults, y - axis is…
If we assume the question is to find the equation of the line (relating the number of adults \(x\) and the number of students \(y\)), the equation is \(y=\frac{1}{2}x\) (or the ra…
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the ratio of adults to students on a field trip is 1 to 2. which graph …
A. The graph with points (1,2), (2,4), (3,6), (4,8) showing \(y = 2x\) (the graph labeled A)
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instructions complete the chart by dragging and dropping the correct me…
### For the term "astray" (adverb): # Brief Explanations: The definition "away from a desirable or expected behavior or thought" matches "astray" as an adverb (e.g., "He went astr…
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for what value of k does the table represent a function? ○ 3 ○ 0 ○ 1 ○ …
0
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parte c / part c: sentence frames / marcos de oración instrucciones / d…
To solve these sentence frame problems related to Martin Luther King Jr.'s speech, we can use values or vocabulary from his well - known themes like equality, justice, freedom, et…
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question 10 round the number to the nearest thousand. 6,761 type the co…
9000
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more working with proportion sometimes, the information given in a prop…
1. Flour: 20 cups, Butter: 10 cups 2. Chemical A: 9 L, Chemical B: 36 L
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the table shows the highest and lowest recorded temperatures for 5 cons…
September, December
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what can you conclude about the u.s. and china populations from the gra…
- There are more people under 18 than age 45 to 64 in the U.S. - There are more people age 19 to 44 than any other age group in the U.S.
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solve the problem. a hummingbird may flap its wings anywhere from 64,80…
300,000
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use the chart to answer the question. distance to houston, texas from: …
230 miles
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round the number to the nearest hundred. 604 type the correct answer.
600
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check here for instructional material to complete this problem. write t…
\( 1 \times 10^8 \)
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round the number to the nearest ten. 2,538 type the correct answer.
2,540
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1 priya looks at the inequality $12 - x > 5$ and says \i subtract a num…
(Problem 1): Yes, I agree with Priya. When solving $12 - x > 5$, we find the solution is $x < 7$, meaning all values of x smaller than 7 satisfy the inequality, which aligns with …
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round the number to the nearest hundred. 432 type the correct answer.
400
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juan, mary, celia, and mark work as information specialists at a high t…
18% (corresponding to the option with 18%)
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4. traditionally, great basin peoples had a close relationship with the…
4. D. They learned the land well, hunted and gathered food, and made tools and clothing from the land. 5. C. The Great Basin has been home to Native American peoples like the Paiu…
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what is the unit rate for the ratio \\(\\frac{90 \\text{ calculators}}{…
A. $\frac{90 \text{ calculators}}{6 \text{ classrooms}} \frac{\div6}{\div6} = \frac{15 \text{ calculators}}{1 \text{ classroom}}$
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exercises there are 3 red, 7 blue, and 5 yellow balloons. 4. write the …
Colon form: \( 7:15 \), Fraction form: \( \frac{7}{15} \), Word form: \( 7 \) to \( 15 \) ### Question 5
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sandra walks 13 miles in 3 hours. at what unit rate does sandra walk? 6…
D. $\frac{13/3 \text{ miles}}{1 \text{ hour}}$
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jeremy used $3\\frac{3}{4}$ cups of flour and $1\\frac{3}{8}$ cups of s…
$2\frac{3}{8}$ cups
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directions: for the following questions, choose the best answer or resp…
D. Pretzels are a common snack that have affected people throughout history. ### Question 2
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calling dreams georgia douglas johnson 1880 - 1966 the right to make my…
1. Imagery & Symbolism Q1: His goals he wants to achieve one day. 2. Imagery & Symbolism Q2: "Fate's deadly contraband" suggests danger, framing fate as a threatening, restrictive…
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use the chart to answer the question. distance to houston, texas from: …
50 miles
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read each question and choose the best answer. then write the letter fo…
B ### Question 2
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working with proportion when given a ratio and one of the parts, write …
1. Approximately 36.36 minutes 2. 121 cm 3. 75 minutes
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read each question and choose the best answer. then write the letter fo…
C ### Question 2
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milan is having a party. hell have 4 tables for every 8 guests. complet…
Filled table: | Number of guests | 2 | 8 | 14 | 18 | 20 | |------------------|---|---|----|----|----| | Number of tables | 1 | 4 | 7 | 9 | 10 |
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supongamos que un satélite en órbita alrededor de la tierra recorre 50 …
(for part (b)): The time the satellite takes to travel 250 kilometers is $\boxed{40}$ seconds. (For part (a), the proportion is $\frac{8}{50}=\frac{t}{250}$ or $\frac{50}{8}=\frac…
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4 fill in the missing numbers on the grid below. use the patterns you k…
(Filled Grid Highlights): - Row 1: \( 30, 70 \) - Row 2: \( 110, 150, 200 \) - Row 3: \( 220, 260, 290 \) - Row 4: \( 340, 370 \) - Row 5: \( 410, 450, 500 \) - Row 6: \( 530, 560…
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10 aniyah is driving home at a constant speed. after 20 minutes, she is…
$y = -45x + 85$
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b-116. write a system of two equations to solve this problem. then solv…
3
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working with ratio ratios can be used in word problems to express the r…
1) $4:9$ 2) $3:1$ 3) $1:4$
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the two - way frequency table represents data from a survey asking a ra…
(Note: The options provided in the image are incomplete, but the correct joint relative frequency is $\frac{12}{38}$ or simplified to $\frac{6}{19}$)
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word problems mrs. jones wants to get a new car for her daughter. she h…
$\$7,455$
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which of the following numbers rounds to 36.2? a 36.00 b 36.029 c 36.21…
C. 36.215
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mr. capuano, an art teacher, surveyed his students to find out whether …
6% (corresponding to the option: ○ 6%)
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greatest. \\(\frac{1}{3}, \frac{1}{8}, 0.42, \frac{3}{4}, 0.135\\) \\(\…
First set (greatest to least): $\frac{3}{4}, 0.42, \frac{1}{3}, 0.135, \frac{1}{8}$ Second set (greatest to least): $0.825, \frac{7}{12}, 0.50, \frac{2}{6}, 0.3$
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a survey was taken of a random sampling of residents of new york city a…
There is a greater percentage of LA residents who own a car than NYC residents who do.
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which is an example of a survey involving quantitative data? the favori…
the number of cavities each person has had
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a poll is being taken on wednesday to predict which movie will be the m…
Every fifth person walking down the street in several different locations throughout town at different times of day.
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janle asked all of her classmates about the number of pets they have in…
The survey represents quantitative data.
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a ______ is one that has the same characteristics as the population of …
representative sample
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marissa buys a vase with flowers. she pays the same price for each flow…
1. The initial value is $\$12$: True 2. The initial value represents the number of flowers: False 3. The rate of change is $\$6$ per flower: False 4. The total cost for a vase wit…
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staff from the school newspaper is taking a poll to find out how studen…
C. Every tenth student in the main hallway between class.
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what is 3.149 rounded to the nearest hundredth? a 3.14 b 3.15 c 3.1 d 3…
B. 3.15
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the sitar is a popular indian classical string instrument. naresh plays…
$y = 2x + 8$
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gustavo is in a contest where he will win one of four possible prizes. …
Gustavo used a simulation where the data is qualitative.
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the equation and table show the cost to rent a canoe at two different c…
$\$3$ per hour
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darren kept track of the number of e - mails he received from one of hi…
The data is skewed left and shows that on half of the days, Darren received 11 or 12 e-mails from the customer.
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which would be a subset of the students in a school? all of the student…
all of the students in one class
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simon and sherry went blueberry picking. simon picked 18.5 pounds and s…
Part A: 19 pounds Part B: 21.8 pounds
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a cell phone company wants to determine the average amount of data that…
one thousand of their customers with a current smart phone data plan
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ian’s comic book collection has 5 manga comic books for every 8 superhe…
B. 8 : 5
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which sample fairly represents the population? select two options. - me…
- calling every third person on the soccer team's roster to determine how many of the team members have completed their fundraising assignment - taking a poll in the lunch room (w…
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sarina rounded a number to the nearest whole number and got 7. which nu…
A. 7.3782
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sal recorded the number of crackers in each snack - sized package he op…
The data is skewed, and the lowest number of crackers in a package was 7.
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tameka and jamila are writing addresses on invitations to a kwanzaa cel…
The ratio of invitations addressed to minutes for Tameka is \(5:10\). The ratio of invitations addressed to minutes for Jamila is \(8:10\).