Statistik
Datenanalyse, Wahrscheinlichkeitsverteilungen und Hypothesentests.
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the scatter plot shows the average monthly temperature, x, and a family…
(Part a): \( y = -1.33x + 103.33 \) (or similar, e.g., \( y = -1.25x + 105 \))
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16. a researcher conducts an independent-measures study comparing two t…
22 ### Part b
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the scatter plot shows the time spent texting, x, and the time spent ex…
(a) $y = -1.00x + 10.00$ (b) 6.00
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swift poetry analysis prompt: after completing the swift chart, write a…
Literature (under Arts)
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the scatter plot shows the number of hours worked, x, and the amount of…
\( y = 0.94x + 5.24 \) (answers may vary slightly depending on the points chosen for approximation) ### Part (b)
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consider question c and question d, but do not solve them. then answer …
Both questions involve calculating the number of unique arrangements (or distributions) of a set of items where there are repeated (identical) elements. They can be solved using t…
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the help desk is keeping track of the number of minutes the average cal…
# Explanation: ## Step1: Analyze week 1 - week 3 Week 1: 7, Week 3: 3. Decrease (7→3). ## Step2: Analyze week 1 - week 4 Week 1: 7, Week 4: 2. Decrease (7→2). ## Step3: Analyze we…
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yana is in the school computer lab writing a paper for history class. t…
A. Yana opened her saved paper, wrote, took a break, deleted some of the words, and then began writing again.
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write each percentage as a simplified fraction. the first one has been …
$\frac{5}{100}$, $\frac{1}{20}$
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yana is in the school computer lab writing a paper for history class. t…
A. Yana opened her saved paper, wrote, took a break, deleted some of the words, and then began writing again.
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for cindy’s birthday she got 5 gifts from her parents and 6 gifts from …
90 ### Henry's Cookie Problem
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question which event is most likely to occur? answer rolling a multiple…
Reaching into a bag full of 54 strawberry chews and 6 cherry chews without looking and pulling out a strawberry chew.
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which event is least likely to occur? answer rolling an even number on …
Winning a raffle that sold a total of 100 tickets, if you buy 14 tickets.
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the graph represents the heights of two climbers on a climbing wall ove…
D. Both climbers rested on the wall at a constant height for 2 minutes (assuming the options are labeled A, B, C, D as per the order: first option A, second B, third C, fourth D)
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when spending large amounts to purchase advertising time, companies wan…
D. This was a stratified sample because no treatment was applied, so the poll was not an experiment.
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14. what causes us to overeat? one surprising factor might be the mater…
# Explanation: ## Step1: Calculate means and standard deviations For Paper Plate (let's call this Group 1): Data: 37, 35, 34, 36, 40, 34, 33, 39 $n_1 = 8$ $\bar{x}_1=\frac{37 + 35…
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d) the first group returned to sports activity in a mean of 60.7 days w…
D. It is difficult to say whether use of mean and standard deviation as measures of center and spread is justifiable.
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the number of banks in the country for selected years from 1980 to 2009…
2011 ### Second Sub - Question (Slope of the Line)
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use the table to evaluate f(-1). | x | -3 | -2 | -1 | 0 | 1 | 2 | 3 | |…
2 (corresponding to the option "2")
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the graph below represents the relationship between the number of days …
18
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finding the mean and median miriams study group received test scores of…
Mean: \(89\), Median: \(92\)
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a car increases, then decreases, its speed. which table could represent…
The second table (Time (min): 5, 6, 7, 8, 9; Speed (mph): 45, 47, 49, 48, 47)
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the graph represents the heights of two climbers on a climbing wall ove…
D. Both climbers rested on the wall at a constant height for 2 minutes (assuming the options are labeled A, B, C, D with D being this option; if the original options are labeled a…
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ex2) make a dot plot for the given data. then describe the shape of its…
### Dot Plot: - Ticks: \( 1, 2, 3, 4, 5, 6, 7, 8, 9 \) - Dots: - \( 1,2,3,8,9 \): \( 0 \) dots - \( 4 \): \( \boldsymbol{\cdot\cdot\cdot\cdot} \) - \( 5 \): \( \boldsymbol{\cdot\c…
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the graph represents the heights of two climbers on a climbing wall ove…
18 feet (corresponding to the option "18 feet")
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employees of a publishing company received an increase in salary of 8% …
\(\$17,400\); If an employee's old salary was \(\$15,000\), then his/her new salary was \(\$17,400\) after the increase and bonus. For the second sub - question (logarithm):
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the confidence interval for the population mean μ is (32.5, 37) (round …
B. With 80% confidence, it can be said that the population mean commute time is between the bounds of the confidence interval.
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ex5) make a histogram for the given data. then describe the shape of it…
To create the histogram: 1. **Intervals & Frequencies** (example with 7 intervals, width 10): | Intervals | Frequency | |-----------|-----------| | 8–17 | 3 | | 18–27 | 5 | | 28–3…
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for every 24 meals momoka prepared for customers last night, she prepar…
Momoka prepared \(144\) meals for customers and \(12\) meals for employees.
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the table represents the amount of storage space, in megabytes, used by…
As the number of files increases, the storage space used increases. (The fourth option: "As the number of files increases, the storage space used increases.")
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use your existing knowledge of casework, combinations, and permutations…
No, the answers will not be equal. The word "DUCK" has 4 distinct letters, so its permutations are \( 4! = 24 \). The word "TREE" has 4 letters with "E" repeated twice, so its per…
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question 30 (3 points) the table below gives the number of worldwide in…
1424 million (corresponding to the option: 1424 million)
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the accompanying table shows the ages (in years) of 11 children and the…
\( r = \boxed{0.9} \) (rounded to three decimal places)
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paint color preference \t\tchildren\tadults\ttotal liked new paint colo…
0.85
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the conditional relative frequency table was calculated by row using da…
Given that the program was targeted at adults, there is a 37.5% chance that it was recorded.
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6. two separate samples receive different treatments. after treatment, …
s: a. The pooled variance is \(\boldsymbol{12}\). b. The estimated standard error is approximately \(\boldsymbol{1.93}\) (or more precisely \(\sqrt{\frac{56}{15}}\approx1.932\)).
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document a (modified) the true interest of america impartially stated, …
### Sourcing (Document A): - Who wrote this document? Charles Inglis (Anglican minister, Loyalist). - What type of document is it? A pamphlet (political argument against independe…
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a guidance counselor compiles data relating a students english grade to…
\(0.4\)
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a car dealer organizes the inventory of a specific model of car into a …
A. Given that a car is a coupe, there is a 10% chance it is from the previous model year.
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in a random sample of 18 people, the mean commute time to work was 34.7…
Margin of error: \( \approx2.23 \) Confidence interval: \( (32.5, 36.9) \) (rounded to one decimal place as needed)
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the conditional relative frequency table was generated by row using fre…
There is likely an association because 0.8 is not similar to ≈ 0.33.
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look at the table on texts assigned to students. texts assigned to stud…
0.1
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paint color preference children\tadults\ttotal liked new paint color\t0…
0.85
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the conditional relative frequency table was generated using data that …
0.3
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5. two separate samples, each with n = 9 individuals, receive different…
a. The pooled variance is $\boldsymbol{72}$. b. The estimated standard error is $\boldsymbol{4}$.
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what is one cost of avoiding insurance? ○ falling into debt if faced wi…
A. falling into debt if faced with a serious problem
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question 21 (3 points) the table shows the national expenditures for he…
3636.665 billion
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the conditional relative frequency table below was generated by column …
The value of G is not similar to the value of H.
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what does jihad mean? a. struggle b. student c. a religious edict d. te…
A. Struggle
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martina used \\(\\frac{3}{4}\\) of a bottle of conditioner in \\(\\frac…
\(\frac{9}{7}\) (or \(1\frac{2}{7}\))
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question 20 (3 points) the percents of girls age x or younger who have …
45.8% (the option with 45.8%)
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question 3 read this sentence from the article: the next time youre out…
B. making contact or connecting
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reasoning about an association between variables in a survey, 15 high s…
Micah's conclusion is incorrect. The probability of a high school student being able to drive is \(\frac{15}{15 + 15}=0.5\) (50%), and for a college student, it is \(\frac{30}{60}…
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comparing relative frequency tables using the data below, eve created a…
- Eve's table shows that those who enjoy dancing are likely girls. - Bob's table shows that boys are likely to not enjoy dancing. - The percentage of someone being a girl, given t…
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express each rational number as a decimal. then insert < or > between t…
Para $\frac{5}{11}$: B. $0.\overline{45}$ Para $\frac{4}{9}$: A. $0.\overline{4}$ Relación: $\frac{5}{11} > \frac{4}{9}$
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one hundred thirty people were asked to determine how many cups of frui…
The conditional relative frequency that someone ate more than 2 cups of fruit, given the person drank less than or equal to 4 cups of water is approximately 24%. The conditional r…
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students in 10th and 11th grade were asked whether they have a job. the…
Given that a student is a 10th grader, there is a 14% chance he or she has a job.
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determining raw data values the conditional relative frequency table wa…
36
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the table shows the maximum recommended viewing distances y, in feet, f…
The equation of the trend line is G. \( y = 0.2x + 0.5 \). The slope represents the increase in feet of the maximum recommended viewing distance per inch in screen size.
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creating a conditional relative frequency table a census was conducted …
# Explanation: ## Step1: Calculate \( a \) To find \( a \), we sum the conditional relative frequencies for the row "\( < 20 \) sq. mi." So we add \( 0.2 \) and \( 0.73 \). \( a =…
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read the passage, then use the explanation to infer the meaning of the …
most widely used
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the table shows the maximum recommended viewing distances y, in feet, f…
G. \( y = 0.2x + 0.5 \)
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lesson 4 smart grammar question words comment ? how? lequel/laquelle ? …
1. Où 2. Quelle 3. Qui 4. Quand 5. Qui 6. Quelle 7. Quoi 8. Quelle
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practice working with relative frequency tables. weekend curfews determ…
\( a = 0.1 \) \( b = 0.85 \)
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question 18 (3 points) select the best type of modeling function for th…
\( \boldsymbol{f(x)=ab^{x},b > 1} \) (the fourth option)
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question 17 (3 points) assume that the growth of the membership of a co…
\( P = 236x + 742 \) (the last option among the given choices) ### Question 18 Since the graph is not fully visible, but from the description of the data points (they seem to foll…
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question 2, 6.1.38 - t part 1 of 4 hw score: 7.69%, 1 of 13 points poin…
\((65.20, 120.80)\)
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the table below shows the attendance in millions at theme parks in a ce…
A. The graph with upward - sloping trend line (the first graph option A)
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read the sentence, and use synonym context clues to determine the defin…
B. criticism (assuming the options are labeled with "praise" as A, "criticism" as B, "punishment" as C; if labels differ, adjust to the correct option text with identifier, e.g., …
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for the table, make a scatter plot of the data. draw a trend line, and …
\(y = 2x + 1\) (or a more precise \(y=1.8x + 1.2\))
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question 16 (3 points) the table shows data from 1975 and projections t…
911
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select the correct text in the passage. which two lines in this excerpt…
1. I bequeath myself to the dirt to grow from the grass I love, 2. If you want me again look for me under your boot - soles.
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scott is the manager for the touring rock band hi phone. for the bands …
\(125\) ### Part (b)
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criteek is a website where fans of horror films go to write movie revie…
6 ### Part (b)
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11) choose the correct answer. dunbar did not mention the meaning of th…
11) A. directly 12) A. not singing or being loved 13) (Assuming the option is) A. something greater than a song (based on the visible text and poem analysis)
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start end ←┼────────┼────────┼────────┼────────┼────────→ 10:00 10:15 1…
10:49 p.m.
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the stem-and-leaf plot below gives the test scores for ms. carter’s sci…
(a) Fourth period: $\boxed{44}$, Fifth period: $\boxed{44}$ (b) $\boxed{\text{Each had the same}}$ (c) $\boxed{\text{Fifth period}}$
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tyce began watching a television show at 10:21 p.m. the show was 38 min…
The Middle Number Line (the second one with start around 10:20 - 10:25 and end near 11:00)
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a machine at a bakery is pouring out flour. the graph shows the amount …
(a) 700 (b) The statement is "As time increases, the amount of flour in the machine decreases." and the rate is 140.
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here are the fuel efficiencies (in mpg) of 15 new cars. 41, 26, 15, 15,…
40%
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why does the economic landscape of latin america have a small middle cl…
an unequal distribution of wealth
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elina has a glass of chocolate milk (shown below). she made it by mixin…
63
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m/s metros por segundo. km/h kilómetros por hora se puede convertir una…
600
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and gina, the ceo, plays a large part in the ad. the first round of vid…
b.) High impact and medium probability
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here are the test scores for 8 students in mr. bs class. 58, 82, 43, 73…
50%
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¿cuáles son las unidades más utilizadas? × √ kilómetro por segundo: km/…
Kilómetro por hora: km/h
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a printing service charges a set-up fee of $10.75 for each order and 25…
18.25
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(b) the washington nationals number of wins is at the 70th percentile o…
The Washington Nationals won more games than 70 percent of the 30 teams. The Nationals won 93 games in 2019.
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describe the slope of a trend line that models the data in a scatter pl…
In a scatter plot with positive association, the slope of the trend line is positive. In a scatter plot with negative association, the slope of the trend line is negative.
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a golfer recorded the score for each round of golf she played in a seas…
s: (a) The median score is 80. (b) The lowest score is 72. (c) The first quartile ($Q_1$) of the scores is 75.
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does this scatter plot show a positive trend, a negative trend, or no t…
no trend
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question 10 distance traveled (feet) number of revolutions (a) how many…
(a) \( \frac{1}{4} \) (or 0.25) revolutions per foot. (b) The slope is 4. (For part (a) box: \( \frac{1}{4} \) or 0.25; part (b) box: 4)
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instruction active creating a conditional relative frequency table by r…
- Biology - Algebra: 73% - Biology - Geometry: 27% - Biology - Total: 100% - Chemistry - Algebra: 70% - Chemistry - Geometry: 30% - Chemistry - Total: 100% - Total - Algebra: 72% …
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does this scatter plot show a positive trend, a negative trend, or no t…
negative trend
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the movement of the progress bar may be uneven because questions can be…
\$2.00
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kaceys class collected 287 food items to donate. colvins class collecte…
343
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darrons class collected 293 food items to donate. shao collected 8 bags…
357
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on tuesday, a local hamburger shop sold a combined total of 456 hamburg…
114
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there are 64 juice boxes at the picnic. a guest brings 4 more packs of …
96
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a group of 150 college students who took math last term were interviewe…
42 ### Part (b)