Statistik
Datenanalyse, Wahrscheinlichkeitsverteilungen und Hypothesentests.
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chin researched the amount of money 150 students earned per month from …
The predicted mean of the population will be less than 245.
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stan guessed on all 10 questions of a multiple - choice quiz. each ques…
0.756
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to conduct a survey about the type of phone service most people in gree…
cluster sampling.
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school newspaper staff went to three different sports games to survey s…
These samples are biased because the newspaper staff went to a basketball game, football game, and volleyball match to interview the students.
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which word means a place? their theyre there what is an adverb? a word …
- First question: There - Second question: A word that describes a verb - Third question: Its wool
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a convenience sample differs from a voluntary sample in that - a conven…
A. a convenience sample is structured based on accessibility to the researcher, and a voluntary sample is based on participant interest.
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according to a poll, 56% of voters support funding a new community cent…
C. 0.56
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which source gives options for using other words? dictionary the bible …
1. D. Thesaurus 2. B. Than 3. B. Too
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15. someone who manages and assumes the financial risks of starting a n…
15. b. entrepreneur 16. c. means of production 17. None of the given options are correct (but if we had to choose based on the context, it's not among these choices). 18. Karl Marx
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which of the following is not a requirement of the permutations rule, $…
A. Order is not taken into account (rearrangements of the same items are considered to be the same)
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benito is selecting samples of five values from the table, which row wi…
Row 4
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vladimir rolls a six - sided number cube 36 times. if getting a 3 is a …
A. $\frac{1}{6}$
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a sports network displayed the number of olympic medals won by certain …
8
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an employer asks the survey question \how much money do you spend on ga…
The employees that drive to work were the target of her survey.
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at lawson middle school, mr. hernandez asked 90 randomly selected stude…
No, Mr. Hernandez's sample is random, not biased, large enough compared to the population, but 28 is not 20% of 90.
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select the outlier in the data set. 38 30 39 14 17 29 22 20 99 32 if th…
Outlier: 99 Effect on mean: decrease
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sample mean sample 1 3.4 sample 2 3.2 sample 3 4.1 sample 4 4.6 sample …
D. 4.6
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miguel cabrera has had 369 at bats, and he has 127 hits and 21 home run…
0.57
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a corporation must appoint a president, chief executive officer (ceo), …
$\frac{1}{560}$
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technology and the economy transportation technology has improved acces…
airplanes
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the student government at the local middle school surveyed students to …
C. Both samples are biased.
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geraldo wants to start a group bike ride on sunday mornings for student…
4
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all 150 eighth - grade students at a local middle school were asked how…
B. Row 2
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technology and the economy has improved access to information. transpor…
The Internet; Production automation; Transportation technology
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11. next to each man, identify what industry they were a part of. - car…
11. Carnegie: Steel industry; Rockefeller: Oil industry; Morgan: Banking and finance industry 12. Laissez - faire means minimal government intervention. Robber barons preferred it…
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their responses are shown in the table below. car color favorite color …
175
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read the excerpt from the scarlet ibis. there is within me (and with sa…
the casket, which symbolizes the loss of Doodle
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what does it mean to raise a number to the power of 0? you can look at …
1
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mrs hale: id hate to have men coming into my kitchen, snooping around a…
organize
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which action might help to increase self - confidence? o being involved…
being involved in meaningful activities
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a clothing store sold 16 shirts this week. here they are by color. blac…
Draw bars of heights 1 (yellow), 6 (green), 4 (black), 5 (white) on the given bar - graph.
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find the mean, median, and mode of the data, if possible. if any of the…
A. The mean score is $10.9$
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explain how to find the range of a data set. what is an advantage of us…
1. D. The range is found by subtracting the minimum data entry from the maximum data entry. 2. C. It is easy to compute. 3. C. It uses only two entries from the data set.
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find the range of the data set represented by the graph. the range of t…
25
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find the range of the data set represented by the graph. click the icon…
10
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a study recorded the time it took for a sample of seven different speci…
Range = 9 day(s) s = 4.22
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in a large population, 66% of the people have been vaccinated. if 5 peo…
$0.9955$
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use the appropriate formulas and methods to answer the following questi…
The range is 60. The standard deviation is 14.60.
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suppose that you have 7 green cards and 5 yellow cards. the cards are w…
a. 0.3182 b. 0.8485 c. 0.5455 d. They are dependent events
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the ages of the winners of a cycling tournament are approximately bell …
(a) $z = 0.44$ (b) An age of 30 is 0.44 standard deviation(s) above the mean. (c) D. No, this value is not unusual. A z - score between - 2 and 2 is not unusual.
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compare the three data sets on the right. (a) which data set has the gr…
(a) C. Data set (ii), because it has more entries that are farther away from the mean. B. Data set (iii), because it has more entries that are close to the mean. (b) C. The three …
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the numbers of regular - season wins for 10 football teams in a given s…
$4.4$
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the numbers of regular - season wins for 10 football teams in a given s…
The population variance is 20.0. The population standard deviation is 4.5.
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twenty percent of adults in a particular community have at least a bach…
C. $P(x\geq60)=1 -$ binomcdf$(100,0.20,59)$
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flip the coin to find the probability of each event in the table. flip …
It depends on the actual number of heads in the 4 - coin flips. If \(x\) is the number of heads in 4 flips, the experimental probability of getting heads is \(\frac{x}{4}\), where…
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find the equation of the regression line for the given data. then const…
\(\hat{y}=0.045x + 17.48\)
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we hold these truths to be self - evident, that all men are created equ…
These are rights that cannot be taken away.
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what does taxation without representation mean? (u2.1) (1 point) the de…
The colonies had no voting representatives in Parliament (Britain's Congress), and therefore no one to act in their interests. Yet, Britain imposed taxes on the colonists.
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four runners, fran, gloria, haley, and imani, compete on a relay team. …
C. \(S=\{FGI, FIG, GFI, GIF, IFG, IGF\}\)
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a random number generator is used to create a list of 150 single - digi…
38%
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joe, keitaro, and luis play tennis. to decide who will play against eac…
A. $\{KL\}$
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suppose that you have 7 green cards and 5 yellow cards. the cards are w…
a. 0.3403 b. 0.8264 c. 0.5833 d. They are independent events
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a jar contains 3 red marbles, numbered 1 to 3, and 7 blue marbles numbe…
a) $\frac{1}{3}$ b) $\frac{1}{2}$
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the equation for the least - squares regression line is (y = 116.4169-1…
$73.6$
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lamont has a bag of marbles with 5 blue marbles, 4 white marbles, and 6…
a) $\frac{1}{7}\approx0.1429$ b) $\frac{4}{35}\approx0.1143$ c) $\frac{2}{91}\approx0.0220$
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temperatures: following are average temperatures, in degrees fahrenheit…
$\hat{y}=67.0746 + 0.3194x$
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dante buys a bag of cookies that contains 5 chocolate chip cookies, 8 p…
$0.0362$
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two students from a group of eight boys and 12 girls are sent to repres…
$\frac{62}{95}$
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the table shows the results of a survey in which 10th - grade students …
$70\%$
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round all answers to 4 decimal places. a. a bag contains 6 yellow marbl…
a. 0.1116 b. 0.0909
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there are 6 white and 4 orange ping - pong balls in a brown paper bag. …
a) 10 b) 0.4 c) 0.333 d) 0.133
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score on last try: 0.75 of 1 pts. see details for more. at least one sc…
a. $0.9524$ b. $0.9195$ c. $0.0476$ d. $0.9452$
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a spinner has five congruent sections, one each of blue, green, red, or…
The theoretical probability of spinning any one of the five colors is 20%. The theoretical probability of spinning green is equal to the experimental probability of spinning green…
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a home pregnancy test was given to women, then pregnancy was verified t…
b. $0.9195$ c. $0.0476$
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section 5.4 homework score: 5.47/14 answered: 6/14 question 7 a home pr…
$P(\text{Positive}|\text{Pregnant})\approx0.9524$ $P(\text{Pregnant}|\text{Negative})\approx0.0548$
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a test was given to a group of students. the grades and gender are summ…
$0.263$
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a) are believing that the earth is warming and being a liberal democrat…
a) not mutually exclusive b) 0.7600 c) 0.5294 d) 0.3333 e) dependent
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a) are believing that the earth is warming and being a liberal democrat…
a. not mutually exclusive b. (Value depends on correct data extraction from the image, assume calculation using \(P(A|B)=\frac{P(A\cap B)}{P(B)}\)) c. (Value depends on correct da…
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which word means to be treated badly over a long period of time? * segr…
1. B. opresión 2. A. segregación 3. B. discriminación
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3. what does abdicate mean? 4. charles v felt his empire was too large …
3. To renounce one's throne, power, or responsibility. 4. Spanish - Habsburg monarchy was ruled by Philip II; Holy Roman Empire and Austrian - Habsburg lands were ruled by Ferdina…
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giving a test to a group of students, the grades and gender are summari…
a. $0.4906$ b. $0.1321$ c. $0.6981$ d. $0.2188$
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six students, michelle, nadir, olivia, parvi, quinn, and richard, are r…
$\frac{2}{3}$
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what did reagans \peace through strength\ cold war approach mean? he wa…
He wanted to increase the national defense.
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four numbers from the set 0 to 9, including 0 and 9, are used to create…
How many possible outcomes exist for the situation? 5040 How many possible outcomes begin with a 0? 504 What is the theoretical probability of choosing a personal identification n…
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among a total of students, the grades and gender are summarized below. …
The probabilities for parts a - d are approximately: a. $0.5574$ b. $0.1148$ c. $0.7377$ d. $0.175$
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giving a test to a group of students, the grades and gender are summari…
a. $0.4906$ b. $0.1321$ c. $0.6981$ d. $0.2188$
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a cbs news poll involved a nationwide random sample of 651 adults, aske…
a. $P(\text{Republican})\approx0.286$ b. $P(\text{worse})\approx0.460$ c. $P(\text{worse}|\text{Republican})\approx0.237$ d. $P(\text{Republican}|\text{worse})\approx0.147$ e. $P(…
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section 5.4 homework score: 2.2/14 answered: 3/14 question 3 score on l…
a. \(0.2857\) b. \(0.4624\) c. \(0.2366\) e. \(0.0676\)
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a farmer has an orchard that covers an area of 40 acres. he grows apple…
37.5%
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mariah is randomly choosing three books to read from the following: 5 m…
not choosing all mysteries
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a random sample of 1,000 adults complete a survey about nightly sleepin…
E. Because random sampling was used in the absence of using random assignment, the results can be generalized to the population of adults, but we cannot infer that stress level is…
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section 5.4 homework score: 1/14 answered: 1/14 question 2 use the foll…
$0.1408$
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section 5.4 homework score: 0/14 answered: 0/14 question 1 what is equa…
D. $\frac{P(A\ and\ B)}{P(B)}$
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edgar has a bag of marbles with 5 blue marbles, 2 white marbles, and 2 …
$0.171$
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what does separation of church and state mean? churches cannot make law…
The government cannot make laws based on religion.
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edgar has a bag of marbles with 5 blue marbles, 2 white marbles, and 2 …
a) $0.123$ b) $0.049$ c) $0.172$
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question 2 1 pts a total of 480 students participate in an experiment i…
6
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according to masterfoods, the company that manufactures m&ms, 12% of pe…
a. $0.8500$ b. $0.3500$ c. $0.0144$ d. $0.3771$ e. $0.6229$
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section 5.3 homework score: 10/13 answered: 10/13 question 11 a couple …
a) $\frac{1}{8}$ b) $\frac{7}{8}$
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least - squares ok? the following is a residual plot. was it appropriat…
Yes, it was appropriate to compute the least - squares regression line because the residual plot does not exhibit a noticeable pattern.
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least - squares ok? following is a residual plot. was it appropriate to…
Yes, was not
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section 5.3 homework score: 8/13 answered: 8/13 question 9 you toss a f…
a) 0.0625 b) 0.9375
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4.3 homework question 6 of 9 (1 point) | question attempt: 1 of unlimit…
Yes, is appropriate to compute the least - squares regression line because the residual plot does not show a noticeable pattern.
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the spinner below is spun twice. if the spinner lands on a border, that…
The probability of spinning red on the first spin and cyan on the second spin is $\frac{1}{12}$. The probability of spinning blue on the first spin and cyan on the second spin is …
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section 5.3 homework score: 6/13 answered: 6/13 question 7 a die is rol…
0.0833
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the following is a residual plot. was it appropriate to compute the lea…
No, was not, has
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section 5.3 homework score: 5/13 answered: 5/13 question 6 a quick quiz…
2.78
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section 5.3 homework score: 4/13 answered: 4/13 question 5 suppose that…
$0.0225$
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section 5.3 homework score: 2/13 answered: 2/13 question 3 a coin will …
(a) A. Yes (b) $\frac{1}{4}$
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section 5.3 homework score: 1/13 answered: 1/13 question 2 a and b are …
$0.3973$