統計與機率
資料分析、機率分佈、假設檢定與統計方法。
-
key vocabulary - find and define directions: find these words in the st…
**Key Vocabulary - Find and Define**: Tin building: Párrafo no proporcionado, A metal building Assails: Párrafo no proporcionado, No se puede determinar (no hay definición correct…
-
rosas work finding the median of a set of test scores is shown below. (…
She should have reordered the elements from least to greatest.
-
jacqueline practiced drums four times last week for sessions of 40 minu…
The difference in length between Cassie's longest and shortest practice sessions was greater than the difference between Jacqueline's longest and shortest sessions.
-
the number of hours worked by each of the employees last week at two st…
- The mean of the data for store 1 is greater than the mean of the data for store 2. - The data for store 1 shows greater variability.
-
which of the following does not describe the standard normal distributi…
B. The graph is uniform
-
which of the following groups of terms can be used interchangeably when…
areas, probability, and relative frequencies
-
read this excerpt from chapter 2 of the scarlet letter using comprehens…
A. wickedness, sin
-
about 2% of all rough diamonds produced in a certain region are blood d…
a. The mean is 15.00 b. The standard deviation is 3.83 c. The z - score is - 0.78 d. To find the probability that $x\leq12$, we look up the z - score of - 0.78 in the standard nor…
-
number of albums sold year 2008 2009 2010 2011 2012 2013 album type sol…
CDs have a higher mean than digital.
-
assume that the readings on the thermometers are normally distributed w…
The temperature reading corresponding to $P_{97}$ is $1.88^{\circ}C$. The correct graph is the one with the shaded area to the left of a positive x - value (assuming the x - axis …
-
borrowing more money generally: increases equity always increases asset…
Question 1: Decreases equity Question 2: The return you give up by choosing one investment over another Question 3: Revenue = Expenses
-
the plot shows the temperatures (in f) for a group of children who visi…
The data is clustered around the mean. The average temperature is 98. There is little variability in the data.
-
a librarian was trying to figure out the number of books in the non - f…
the mean
-
a. even gods who seem bad might have good hearts. heroes need to trust …
c. "Show me that the water will not harm you... Prove your bloodline." (210)
-
which data set has two values for the mode? o 2, 2, 2, 2, 5, 6, 7, 9, 1…
21, 22, 22, 24, 25, 26, 28, 28
-
which statements are true about statistics? check all that apply. they …
They help describe sets of data. They include the mean, median, range, and interquartile range. Measures of center and measures of spread are examples of statistics.
-
directions: answer the following questions, using evidence from the tex…
1. d. intelligent 2. b. Heroes need to trust themselves, even if it means taking a big risk.
-
the relationship between temperature and cones sold is positive or nega…
1. Positive, linear, strong 2. (90, 10) 3. Approximately 25 4. Between 5 and 60, around 30 - 40
-
below is a table that has the number of houses in a neighborhood and th…
Follow the above steps to create and interpret the scatter - plot.
-
think deeply about and · what is the purpose of education for you? · wh…
The purpose of education, in my view, is to empower individuals to reach their full potential, both academically and personally. It should not only impart knowledge but also foste…
-
construct and interpret scatter plots below is a table that has the num…
- Relationship: Non - linear, Weak - Outlier: (380,38) - Prediction for 300 houses: Roughly 200 - 250 trees - Prediction for 160 houses: Roughly 300 - 350 trees - Best - fit order…
-
assume that a randomly - selected subject is given a bone density test.…
A. The graph with the area between \(z=-1.86\) and \(z = 1.86\) shaded; Probability \(=0.9372\)
-
password strength meters (psms) provide real - time feedback to users d…
C. reciprocity nudges would not be expected to create stronger passwords than users receiving compensation nudges, although users receiving both direct guidance and reciprocity nu…
-
assume that a randomly - selected subject is given a bone density test.…
The probability is \(0.9699\). The correct graph is the one where the area to the right of \(z=-1.88\) on the standard - normal curve is shaded (option D if the graph with the rig…
-
assume that a randomly - selected subject is given a bone density test.…
The probability is \(0.0465\). The correct graph for the sketch of the region is C.
-
6. read the following sentences from the passage: “because water refrac…
D. to light up
-
when solving a system of equations by substitution, what is meant by a …
D. dependent system
-
password strength meters (psms) provide real - time feedback to users d…
C. reciprocity nudges would not be expected to create stronger passwords than users receiving compensation nudges, although users receiving both direct guidance and reciprocity nu…
-
assume this is a positive ordered set of data. which statistics show va…
Range = 17
-
4 what is the meaning of laborious based on the sentences below from pa…
4. C. excessively difficult 5. A. Lacemaking was viewed as an everyday task in the New World; in Europe, lace was seen as a luxurious fashion accessory.
-
question 6 1 pts you show up at the gym for an indoor match. one team b…
Question 6: D. 6 players per team (5 field players + 1 goalie) Question 7: A. How the players are positioned on the field
-
the following text is from lilliam riveras 2020 novel never look back. …
C. Really
-
the following text is from shirley jacksons 1951 novel hangsaman. natal…
C. Reflection
-
8. (3 pts) the table below shows the hours, x, spent working on a new r…
Part A: B. $\frac{3}{100}$ Part B: The rate at which the road is being completed is $\frac{3}{100}$ miles per hour. Part C: When no time is spent working on the road, the distance…
-
1 which central idea develops over the course of the text? a “the lacem…
1. D. "Whether watching lacemakers at work in the market, at a lace center, or in the shade of their own doorways, it’s a pleasure to witness the production of such delicate finer…
-
this type of public land has the highest protections, meaning that you …
National Wilderness Areas
-
7) what does mama do when beneatha disrespects her beliefs? a. she igno…
7. D. She slaps her. 8. A. He does not share her values. 9. D. Trick question! She is not religious. 10. B. Gardening.
-
7) what does mama do when beneatha disrespects her beliefs? a. she igno…
There is not enough information provided in the question to determine the correct answers for each multiple - choice option. We need more context about the story or work these cha…
-
3) in late 1995, a gallup survey reported that americans approved of se…
The mention of the number of troops causes a big difference because it provides new information that affects respondents' attitudes. The bias is information bias. ### 4.
-
how many days a week do you prefer to travel? which activity do you lik…
The task requires writing a short summary paper (approx. a page) for a newspaper or magazine. In the paper, discuss whether the results of the survey about outdoor activities (day…
-
how many days a week do you prefer to have during your favorite season?…
Write a one - page article for a newspaper or magazine. In the article, explain the survey project. Discuss whether the results were surprising or expected. Analyze if the results…
-
1. a universitys financial aid office wants to know how much it can exp…
The first three selected students' labels are 17297, 15529, 50211. (Two more need to be selected following the described process) ### 2.
-
how many days a week do you practice your favorite outdoor activity dur…
A short summary paper should include: 1. Introduction: Briefly describe the survey project, including the purpose (to find out outdoor - activity preferences and days spent outdoo…
-
4. for the quantitative question, find the mean answer value. for the q…
The mean of the quantitative data (number of days people prefer to travel in a week) is approximately \(4.67\). The percentage of people who like hiking is about \(24\%\), swimmin…
-
1. a university’s financial aid office wants to know how much it can ex…
All full - time and part - time students currently enrolled in the college (or a more specific definition depending on the study's scope, e.g., only full - time students) ### 2. (…
-
tom decided to see if the amount of time he studies for a test affects …
A scatter - plot with points (1, 81), (2.5, 93), (0, 62), (3, 91), (1.5, 85), (0.5, 73) plotted on the provided graph.
-
answer the questions below about the scatter plot data. 1. does the sca…
1. Without the scatter - plot, assume positive correlation if points generally rise from left to right. 2. Without the scatter - plot, can't give a specific prediction. But find t…
-
4. the cumulative frequency graph below shows the marks, out of 100, th…
a) $50$ b) $30$ c) $12$
-
2. the graph displays the cumulative relative frequency of the lengths …
a. About 27% b. The first quartile is approximately 12 minutes. This means that about 25% of the phone calls made from the math department office lasted 12 minutes or less.
-
calculator active graph the data and choose the regression that best fi…
a. Linear b. $f(x)=3.137x + 42.349$ c. $\$76856$
-
directions: complete the questions below. please show your work! you ma…
The z - score is 2.56. It means the woman's height is 2.56 standard deviations above the mean height of women.
-
use the following information to answer questions #19 - 20. in a bag th…
19. $\frac{1}{12}$ 20. $\frac{1}{3}$
-
26. how could you change this question, so it represents dependent prob…
Change "return the bottle" to "do not return the bottle" when selecting sports drinks.
-
days 7 - 8 independent probability continued your turn 25. select all s…
1. Select a piece of candy, eat it, and select another one. 2. Choose a marble from a bag that contains 6 blue marbles and 7 red marbles, keep it, then select another. 3. A card i…
-
the table shows the femur lengths (in centimeters) and heights (in cent…
Equations: \(y = 2x+91.2\) (a) 161.2 cm (b) 49.4 cm
-
14. what does a favorable balance of trade mean? a. a country imports m…
B. A country exports more than it imports
-
in a bag there are 12 coins total. half of the coins are pennies, one -…
19. $\frac{1}{2}$ 20. $\frac{1}{3}$
-
you had fifty gallons of water and decided to use twenty - five gallons…
distribution
-
directions: use context clues to determine the meaning of each word. ma…
2. To anticipate with great apprehension or fear 3. Strange and frightening 4. A feeling that something bad is about to happen 5. Causing horror or disgust
-
comparing and contrasting the implied purpose \sixty seconds!\ not sixt…
The NASA article is meant to inform and entertain, while Team Moon is meant to inform.
-
select all that apply. select all the items that describe advertising. …
- can be in print or on the Internet - might use celebrity endorsements
-
dividing up scarce resources refers to resource _. costs conservation d…
C. distribution
-
1. the correlation coefficient for a set of linear data is r = - 0.6. w…
There is a moderate negative linear relationship between the variables in the data - set. ### 2.
-
a person shuts off the lights before leaving a room. this is an example…
conservation
-
select all that apply. select the items that describe the results of sc…
There are not enough goods and services to meet everyone's wants. Using resources today means having fewer of them in the future.
-
for each part below, indicate whether the variable is a quantitative or…
(a) Quantitative (b) Categorical (c) Categorical (d) Categorical
-
an island has 12 fur seal rookeries (breeding places). to estimate the …
$9787$
-
instructions: choose an answer and hit next. you will receive your scor…
17%
-
chron = \time\ chrom = \color\ meta = \change, beyond\ meter = \measure…
A. a device for measuring time
-
some years ago - never mind how long precisely - having nothing particu…
A. Spending time at sea can offer one a sense of clarity and purpose.
-
and set the wall between us once again. we keep the wall between us as …
The speaker and the neighbor repair the wall from opposite sides
-
the noon temperatures (in fahrenheit) for two cities were recorded over…
(a) City B (b) City B (c) City B (d) City A
-
ten cyclists were each asked the distance in miles they biked last week…
| Distance in miles | Frequency | | ---- | ---- | | 1 to 5 | 4 | | 6 to 10 | 1 | | 11 to 15 | 2 | | 16 to 20 | 2 |
-
5. systolic blood pressure readings for a population of adults are norm…
B. between 108 and 122 mmHg.
-
read the excerpt from does my head look big in this? by randa abdel - f…
The narrator is frightened because she is a Muslim making a Catholic confession.
-
select the best evidence to support the statement that the narrators pa…
"someone has sent my parents a list of the top ten schools nationwide (based on the opinion of selected educators and others) and so... we nestle into a Dutch colonial on the Bron…
-
5.1 basics of probability distributions. compute the mean and standard …
$74.8$
-
select the best evidence to support the statement that the narrator bel…
Lonnie wouldn't tell me to jump unless he had a good reason.
-
question 6 (multiple choice worth 5 points) choose the word with the co…
D. heroic
-
what is the correlation coefficient of the linear fit of the data shown…
3) - 0.93
-
regression/correlation coefficient which value of r represents data wit…
1. 2) $-0.89$ 2. 1) $0.89$ 3. 1) Age and value have a coefficient of correlation that is less than zero. 4. 2) There was a strong relationship. 5. 1) $-0.999$
-
the hypothesis represents the statistical claim that the company’s tabl…
alternative
-
situation? × μ ≠ 3 √ μ < 3 μ > 3 μ ≥ 3 complete the hypothesis represen…
$\mu<3$
-
that its tablet computers have age time of 3 hours. in a random omputer…
$\mu < 3$
-
what is the alternative hypothesis, $h_{a}$, for this situation? $\\mu\…
A. $\mu eq 3$, B. $\mu < 3$, C. $\mu> 3$
-
a company claims that its tablet computers have an average recharge tim…
$\mu = 3$
-
regression/correlation coefficient the relationship between t, a studen…
1. 2) between 0 and 1 2. 1) $0<r<1$ 3. (a) $r\approx0.94$ (b) There is a strong positive linear relationship between the number of calories and the amount of sodium in beef hot - …
-
consider two unopened bags of candy (one skittles, the other m&ms). the…
0.5
-
for each part below, indicate whether the variable is a quantitative or…
(a) Categorical (b) Quantitative (c) Quantitative (d) Categorical
-
what is the word that means that god is in control? sovereign omnipoten…
A. sovereign
-
here are the shopping times (in minutes) of nine shoppers at a local gr…
| Shopping time (in minutes) | Frequency | | ---- | ---- | | 15 to 20 | 3 | | 21 to 26 | 2 | | 27 to 32 | 4 |
-
mr. lee gave his students a biology test last week. here are the test s…
| Test score | Frequency | |--|--| | 66 to 71 | 4 | | 72 to 77 | 2 | | 78 to 83 | 3 | | 84 to 89 | 2 |
-
here are the hottest recorded temperatures (in °f) for eight cities thr…
| Temperature (in °F) | Frequency | | ---- | ---- | | 103 to 107 | 2 | | 108 to 112 | 4 | | 113 to 117 | 2 |
-
here are the shopping times (in minutes) of ten shoppers at a local gro…
| Shopping time (in minutes) | Frequency | | ---- | ---- | | 18 to 22 | 1 | | 23 to 27 | 3 | | 28 to 32 | 1 | | 33 to 37 | 4 |
-
mr. richardson gave his students a biology test last week. here are the…
| Test score | Frequency | |--|--| | 79 to 83 | 4 | | 84 to 88 | 3 | | 89 to 93 | 4 | | 94 to 98 | 1 |
-
page 5: short answer questions instructions: answer the following quest…
1. One might amble in a peaceful park on a sunny afternoon, enjoying the scenery at a leisurely pace. 2. Someone might feel isolated in a crowded room due to a lack of meaningful …
-
2. what does the term nomadic mean? a. living in one place permanently …
B. Moving from place to place in search of food and resources
-
the mean and the standard deviation of a normal population are called p…
2
-
the mean and the standard deviation of a normal population are called p…
statistics
-
the mean and the standard deviation of a normal population are called. …
parameters