統計與機率
資料分析、機率分佈、假設檢定與統計方法。
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to one coming north by claude mckay 1922 at first youll joy to see the …
an island or peninsula
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on a recent biology quiz, the class mean was 17 with a standard deviati…
a. \(1.0000\) b. \(0.3333\) c. Biology Quiz d. \(11.765\) e. \(7.792\) f. Biology Quiz
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which of the following regressions represents the weakest linear relati…
Regression 2
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suppose a jar contains 19 red marbles and 33 blue marbles. if you reach…
\(\frac{57}{442}\approx0.129\)
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which of the following regressions represents the weakest linear relati…
Regression 3
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the following data represents the miles per gallon of a random sample o…
(a) \(34\) (b) \(34.1333\) (c) \(66.3706\) (d) \(8.1468\)
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question 18 in a large population, 69% of the people have been vaccinat…
\(0.99991\)
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which of the following regressions represents the weakest linear relati…
Regression 3
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in a poll of 158 students at a tech college 76 said they would vote for…
C. 0.48
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a random sample of n = 1675 internet users in the us found that 469 of …
0.01
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which of the following regressions represents the strongest linear rela…
Regression 1
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the boxplot below shows salaries for construction workers and teachers.…
Markos makes more money. The amount more is \(\$10000\)
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bonus question(optional) a manufacturer planning to test - market a a n…
2100
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the average amount of garbage waste generated in 25 homes is 39.25 with…
2.83
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the high temperature in a city was measured on 10 different days. the m…
1.77
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the average number of calories in a family - size package of chocolate …
0.83
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a sample of 49 randomly selected fifth graders who took the same math t…
\(1.76\)
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in a representative sample, 466 out of 1165 american adults said they w…
The sample proportion $\hat{p}$ is approximately $0.4$.
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in a survey of 240 u.s. teachers, 65 said that all or almost all of the…
$0.27$
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in a survey of 980 u.s. teens, 372 said they own smartphones. find stan…
0.02
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in a survey of 240 u.s. teachers, 65 said that \all or almost all\ of t…
0.03
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to one coming north by claude mckay 1922 at first youll joy to see the …
misses his old home
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question #19 which characteristic of american modernism means writers i…
- Question #19: Sacred Symbolism - Question #20: Technology
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a. based on the boxplot above, what is the value for the first quartile…
a. \(10\) b. \(13\) c. \(15\)
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histogram shapes and the relative locations of measures of centers dete…
First histogram: \(mode\leqslant median\leqslant mean\); Second histogram: \(mean\leqslant median\leqslant mode\); Third histogram: \(mean = median = mode\)
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the table summarizes results from 978 pedestrian deaths that were cause…
\(11.9\)
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the table summarizes results from 976 pedestrian deaths that were cause…
\( 0.3289 \)
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students in a science class are constructing a model for a data set. th…
C. The quadratic model is not appropriate because the residuals show a pattern.
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starting at noon, akram observed the amount of snow on his lawn during …
The amount of snow on the lawn at 1 p.m.
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theres a roughly linear relationship between the number of times a spec…
The number of times the cricket could be expected to chirp in one minute if it's \(75^{\circ}F\).
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giving a test to a group of students, the grades and if they were a bus…
a) \(0.7667\) b) \(0.2667\) c) \(0.6957\) d) \(0.85\) e) \(0.7\) f) \(0.4359\)
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country was the most popular music genre in maine in 2022. what does th…
People in Maine listened to country songs more than songs from other genres.
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good craftemanship means: a) keeping art work clean b) a focused effort…
E. All of the above
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which of these was the biggest disadvantage for settlers wanting to tak…
B. Land speculators were most able to purchase land in the affected areas.
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according to the article \what is non - representational art?\, the wor…
True
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chases math teacher finds that theres roughly a linear relationship bet…
A student's expected quiz score if they spent 1 hour on their homework.
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choe is ordering a taxi from an online taxi service. she has to pay a f…
The total charge for 1 mile.
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using the following stem & leaf plot representing the time in minutes t…
\(Min = 10\), \(Q_1=28\), \(Med = 43\), \(Q_3=55\), \(Max = 64\), \(Range = 54\), \(Interquartile\ Range=27\)
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the students in a precalculus class measured each students height and a…
B. Because point \(P\) is above the \(x\) - axis, for the student with a height of \(175\) cm, the model underestimates the actual arm span value by \(23.4\) cm.
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a manager at an insurance company wishes to examine the relationship be…
a) When amount of college increases by one year, the starting salary increases by 3.6 thousand dollars. b) 67.6540 thousand dollars.
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the speed of a car traveling on a highway is being recorded once per se…
D. Contextual clues fail to help in selecting a model for this contextual situation.
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the graphs give three residual plots for linear, quadratic, and exponen…
D. The residual plot for the quadratic regression is without pattern, and the residual plots for the linear and exponential regressions show patterns. Therefore, the quadratic mod…
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question 2 in a brand recognition study, 1093 consumers knew of honda, …
\(96.7\)
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the table gives the average automated teller machine (atm) surcharge fe…
A. The error is \(0.01\), and the value predicted by the model is an underestimate.
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cuándo eras niña, te divertías mucho con los videojuegos? (what does \d…
To enjoy/have fun.
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question 1 - 16 a vehicle has a maximum fuel capacity of 20 gallons. th…
When the gas tank is full, the vehicle can travel 140 miles before it runs out of fuel.
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which phrase means \to behave badly\? preocuparse portarse mal portarse…
Portarse mal
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which sentence is correct? hint: \all ready\ means completely ready; \a…
Marcus is all ready to run the race.
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which sentence is correct? hint: \all ready\ means completely ready; \a…
The scientist already completed the experiment.
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a math tutor working with a small study group has classified students i…
A. {Ny, Roz, Al, Oli, Eva, Jen, Gus, Mel, Cam, Flo, Pat, Lon}
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a math tutor working with a small study group has classified students i…
A. {Al, Ben, Eva}
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1.8 feet per second. balloon b is 3 feet off the ground and starts to r…
After 5 seconds, the balloons are 15 feet in the air.
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rate of growth 37 cm 22 cm 0.75 cm per year 1.5 cm per year mayra wrote…
After 20 years, the sharks are both 52 cm in length.
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kate is trying to decide between two health clubs. company a charges a …
C. After 12 months, both plans will cost $490.
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jose and maris work as sales people for different car dealerships. jose…
A. Both persons will earn a monthly salary of $5,000 for $25,000 in sales.
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based on the segmented bar graph, which statement is true regarding spe…
Speed compliance is highest on highways.
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scenario: suppose we have a dataset detailing the number of electric an…
130
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the table categorizes drivers into age groups (under 30, 30 - 50, over …
They use navigation systems more than older drivers.
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two - way table scenario the table categorizes drivers into age groups …
They have the highest usage of navigation systems.
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two - way table scenario the table categorizes drivers into age groups …
100
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rainfall amounts were recorded for 7 days. using the sample, the averag…
10.50 to 19.50
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two - way table scenario the table categorizes drivers into age groups …
30 - 50
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a histogram is shown. based on the shape of the data distribution, what…
Median and interquartile range
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two - way table scenario the table categorizes drivers into age groups …
70%
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view the spinner. in which area is it impossible to land? blue green pu…
purple
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what does the prefix pseudo mean in the word pseudoscience? false subje…
false
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look at the graph below. which type of graph is displayed? basketball g…
bar
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7 multiple choice 4 points which of these is an economic benefit of low…
7. more consumer spending 8. cost of many goods and services has increased 9. economic
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analyze the scatterplot graph. which trend does the graph show? age vs.…
As age increases, weight increases.
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3 multiple choice 4 points a long time ago, there were native american …
3. As money 4. Consumers
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which means \to study or examine\? reproduce analyze quantify validate
B. analyze
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complete the sentence with the correct plural. chef while the 2011 medi…
chefs
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what is the difference between the torah and the talmud? the torah desc…
The Torah describes the basic laws of Judaism; the Talmud is a collection of interpretations of the Torah.
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look at the scatterplot graph. what is the relationship between variabl…
No distinct relationship exists between variables \(x\) and \(y\).
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17) create a polynomial equation in factored form having roots: -5, 1, …
\(f(x)=(x + 5)^{3}(x - 1)^{3}(x - 4)^{3}\)
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if you randomly select a card from a well - shuffled standard deck of 5…
a) \(\frac{1}{13}\) b) \(0.077\) c) \(7.7\)
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section 5.1 homework score: 7/10 answered: 7/10 question 8 if the proba…
\(\frac{45}{74}\)
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a local meteorologist reports the days weather. \currently sunny outsid…
"sunny"
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the band instant impact participated in a local talent show. they didnt…
attention
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a jar contains 8 red marbles numbered 1 to 8, 10 blue marbles numbered …
A. \(\frac{1}{3}\) B. \(\frac{2}{3}\) C. \(\frac{1}{8}\) D. \(\frac{1}{24}\) E. \(0\)
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complete the sentences with the correct forms of relevant. the meaning …
1. relevant 2. relevance 3. irrelevant
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it is believed that paul was a martyr. which answer best describes what…
He died rather than deny his beliefs.
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question 6 a card is drawn randomly from a standard 52 - card deck. fin…
A. \(\frac{1}{13}\) B. \(\frac{1}{52}\) C. \(\frac{3}{13}\) D. \(\frac{3}{4}\)
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10 multiple choice 10 points the pearson correlation measures the degre…
C. interval or ratio scale of measurement
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a researcher would like to measure the relationship between gender (mal…
- **Question 8**: Phi - coefficient - **Question 9**: All of the above
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6 multiple choice 10 points a researcher selects a sample of 200 colleg…
6. $ ho=0$ 7. the Spearman correlation
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a ball is drawn randomly from a jar that contains 2 red balls, 9 white …
A. \(\frac{1}{8}\) B. \(\frac{9}{16}\) C. \(\frac{5}{16}\) D. \(0\)
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when a hypothesis predicts that there is no correlation in the populati…
1. C. null hypothesis 2. 48 3. True
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giving a test to a group of students, the grades and gender are summari…
\(P(\text{Student was male})=\frac{20}{37}\) \(P(\text{Student was female})=\frac{17}{37}\) \(P(\text{Student was male and got an "A"})=\frac{13}{74}\) \(P(\text{Student was femal…
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a test was given to a group of students. the grades and gender are summ…
A. \(\frac{24}{79}\) B. \(\frac{55}{79}\) C. \(\frac{5}{79}\) D. \(\frac{20}{79}\) E. \(\frac{26}{79}\)
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a regional bank is analyzing its customer base to improve its services …
120
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a regional bank is analyzing its customer base to improve its services …
\(0.5\)
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a die is rolled. find the probability of the given event. write your an…
A. \( \frac{1}{6} \) B. \( \frac{1}{2} \) C. \( \frac{2}{3} \)
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one familys water usage for a year 2. to the nearest degree, what is th…
\(108^{\circ}\)
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a regional bank is analyzing its customer base to improve its services …
\(0.4\)
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when you are writing, try to incorporate interesting words that help re…
add
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section 5.1 homework score: 0/10 answered: 0/10 question 2 if you rando…
A. \(\frac{1}{4}\) B. \(0.250\) C. \(25.0\%\)
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score on last try: 1 of 2 pts. see details for more. at least one score…
a) \(33\) b) \(33\)
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a regional bank is analyzing its customer base to improve its services …
$0.25$
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a group of people were asked if they had run a red light in the last ye…
\(0.730\)