Estadística
Análisis de datos, distribuciones de probabilidad y pruebas de hipótesis.
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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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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
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which type of error results from mistakes made in collecting data? non …
non-sampling error
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problem 3: scramble chicken farms is interested in the productivity of …
1. First empty dropdown: baskets of eggs (baskets) 2. Second empty dropdown: total eggs (eggs)
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c) graph ( y = f(l) ). d) find the desired length and width. 7. the fol…
### Part (a) To draw the graph: 1. **Set up axes**: Label the x - axis as "Time (s)" and the y - axis as "Height (m)". 2. **Plot points**: Use the given table values. For example,…
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5) choose the correct answers. the mouse population in a certain buildi…
Write a model for this situation: e. \(A(t) = 2,500(0.9)^t\) Using this model, how many mice were present after 3 weeks? d. 1,822 mice How many mice were present after 52 weeks (o…
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the expression $11(1.022)^t$ models the per capita gross domestic produ…
B. The per capita GDP in the US is multiplied by approximately 1.022 each year.
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the expression $60cdot1.2^t$ models the number of nano - related patent…
B. There were 60 nano - related patents granted in 1991.
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the expression $6.7 \\cdot 1.45^t$ models the number of billions of gen…
A. The number of bases in the database is multiplied by 1.45 each year.
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the estimated number of organisms in a population after t days is shown…
\( n = 600(1.2)^{t} \) (the second option among the given choices)
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lesson 11 the circle graph below shows how many volunteers from each of…
4. 60 5. $33\frac{1}{3}$ 6. $18\frac{1}{3}$ 7. $10$ 8. $16\frac{2}{3}$ 9. $13\frac{1}{3}$ 10. $8\frac{1}{3}$
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3) choose the correct answer. in 1970, a rancher stocked one of his pon…
B. $A(t) = 200(1.10)^t$
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problem 3: scramble chicken farms is interested in the productivity of …
1. For the dropdown connected to "total eggs (eggs)", select the division operation, then select **total chickens (chickens)** as the second input for that operation. 2. The final…
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violet, will, and xavier plant a total of 1235 trees. violet plants for…
480
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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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grace, henry, and irene make sandwiches for a picnic. for every 20 sand…
$4:5:3$
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how much does each one weigh? mashupmath 27.5 lbs 37.5 lbs mc 2.png 1 c…
Each pumpkin weighs 7.5 lbs, each watermelon weighs 2.5 lbs
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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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writing a system of equations from tables complete the statements about…
(2.2, -2.7)
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1 fill - in - the - blank a smartwatch can track workouts for 12 hours …
50
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a flashlight can shine brightly for 10 hours or dimly for 100 hours. if…
D 30 hours
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a flashlight can shine brightly for 10 hours or dimly for 100 hours. if…
D 30 hours
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seven hundred and seventy - one distance learning students at a large c…
4 ### Part (b)
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jim takes an hour to fold the weekly washing for the whole family. his …
C 20 minutes
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18. this year 0.3 of the x students at mega middle school are in 7th gr…
$x = 980$ The total number of students at Mega Middle School is 980.
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18. this year 0.3 of the x students at mega middle school are in 7th gr…
The total number of students at Mega Middle School is 980.
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companies must pay taxes on their income, and then employees must pay t…
Companies must pay taxes on their earnings, and then stockholders pay taxes on their dividends. the management and board of directors of the targeted firm disapprove of the propos…
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a bag contains 5 red beads, 10 black beads, and 10 green beads. there a…
C. 80%
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money the graph shows a proportional relationship between a persons tot…
$y = 50x$
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henry read $17\\frac{1}{2}$ pages in $\\frac{1}{3}$ of an hour. if he r…
En la línea de horas: $\frac{1}{3}$ En la línea de páginas (primer valor): $17\frac{1}{2}$ En la línea de páginas (para 1 hora): $52\frac{1}{2}$
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Question was provided via image upload.
$5$ --- ### Problem 2
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write the fraction as a percent! \\(\\frac{1}{2}=\\square\\%\\)
50%
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the best camping trip of his life tracy wilson 1 david couldn’t wait to…
C. That he was very happy to see his dad, as happy as he might be if he won the lottery.
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bentley drove 329 miles in 7 hours. on average, how fast did he drive, …
47
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#5 write 34% as a fraction or mixed number in simplest form the simples…
$\frac{17}{50}$
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ten adults were asked how many different jobs they have had. their answ…
(a) Mode: 3 (b) Range: 6
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question a grocery store sells a bag of 8 oranges for $4.96. what is th…
\$0.62
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decimal of the day 5.18 write the name of the decimal in words. round t…
\(4.62\) ### Sub - question 2: Divide the decimal (5.18) in half
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b. if this player had 6 at bats in one game this player would get about…
(for part b): The player would get about 2 hits. ### Part c (Explaining the quote):
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who 15% on a random or mended reminder of student front is original for…
$\frac{3}{20}$
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round to the nearest tenth ______ round to the nearest hundredth ______…
\( 4.62 \)
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when ibram first started taking part in student council, he would get a…
1. Which phrase means something similar to temporarily? → for only a short time 2. Which phrase describes what tension feels like in a person's body? → tight and uncomfortable 3. …
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owners of a radio station want to obtain information on the online radi…
A convenience sample from the entire country
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which table shows a linear function?
The third table (with \( x \) values 0, 1, 2, 3 and \( y \) values 5, 8, 11, 14) shows a linear function.
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remy, from the blog apping with remy,\ asked his readers, \if you had t…
No meaningful conclusion is possible without knowing something more about the characteristics of Remy's readers.
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write 45% as a fraction or mixed number in simplest form. the simplest …
$\frac{9}{20}$
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the declaration of independence (excerpt) he has refused his assent to …
C. to emphasize the wrongdoings by the king
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find $f^{-1}(-7)$. | $x$ | $f(x)$ | | --- | --- | | 6 | -5 | | 5 | -2 |…
\( -4 \)
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nd $f^{-1}(f(19)) - 2f(f(3))$. | $x$ | $f(x)$ | | --- | --- | | 3 | 5 |…
\( 1 \)
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sandy planted a tree and wanted to record its growth. the graph shows g…
In the scenario, the slope represents the growth rate of the tree per year In the scenario, the y-intercept represents the tree's initial height
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find $f(-11) - 4f^{-1}(2)$.\ | $x$ | $f(x)$ |\ | --- | --- |\ | $1$ | $…
\(-27\)
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what information can be gained by peter’s vision? choose the best answe…
b. God saves ALL. He will save ALL who believe in Him. ### Second Question (Peter's Words at Cornelius' Baptism)
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name date \a huge feeder, but a poor milker\ what does the expression \…
1. Monopolies consume massive economic resources ("huge feeder") but contribute almost no broad public or economic benefit ("poor milker")—they extract far more value than they cr…
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for 1 - 16, find equivalent fractions to compare. then write >, <, or =…
1. $\frac{5}{6} > \frac{2}{3}$ 2. $\frac{1}{5} < \frac{2}{8}$ 3. $\frac{9}{10} > \frac{3}{4}$ 4. $\frac{3}{4} > \frac{2}{8}$ 5. $\frac{7}{8} > \frac{1}{2}$ 6. $\frac{2}{5} > \frac…
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to whom did shakespeare bequeath the bulk of his possessions? his daugh…
1. his daughter, Susanna 2. semantics
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question 29 (1.7 points) a husband and wife are watching a cable news p…
the creation of different meanings based on social and cultural context. extended railroads and growing urban centers.
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2 select the correct answer. what does the term terraced dynamics mean?…
A. sudden changes in volume level
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interactive practice: use functions to model linear relationships the f…
The total cost is a function of the number of guests.
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quiz 1. you may make a right turn at a red light a. whenever you wish b…
B. After making a full stop and looking both ways ### Question 2
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week 3 thursday quiz types of crimes can you explain what are the 2 dif…
Two common types of crimes (with examples): 1. Felonies (serious, e.g., murder, robbery, burglary) and Misdemeanors (less serious, e.g., petty theft, simple assault, traffic viola…
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lucia is downloading songs to make a playlist for her quinceañera. the …
the time in minutes it takes each song to download
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4. to refract means ______. to bounce off of something to take somethin…
to change direction when you travel through something else
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3. to absorb means ______. to take something in to bounce off of someth…
to take something in
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2. to reflect means ______. to bounce off of something to pass somethin…
to bounce off of something
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the ward family and the ross family each used their sprinklers last sum…
Ward family's sprinkler: 20 hours Ross family's sprinkler: 30 hours
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relative frequency 0.125 0.1875 0.21875 0.25 0.15625 0.0625 tal =
1
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question 4 1 pts if a company can eliminate all sources of variance in …
The predictability of the process is significantly improved.
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galaxy a has $2 \\times 10^8$ stars. galaxy b has $5 \\times 10^6$ star…
Galaxy A has more stars. Galaxy A has 40 times as many stars as Galaxy B.
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read the selection and choose the best answer to each question. the fli…
A. Daedalus sees the air as a means of escape.
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question 7 butler argues that gender acts as a placeholder for various …
A. True