Estadística
Análisis de datos, distribuciones de probabilidad y pruebas de hipótesis.
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use the spinner below to find the probability of getting the following …
$0.8333$
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the table summarizes results from pedestrian deaths that were caused by…
$0.3266$
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as shown above, a classic deck of cards is made up of 52 cards, 26 are …
a. 0.0192 b. 0.2500 c. 0.4615
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section 5.1 homework score: 8/17 answered: 8/17 question 9 two dice are…
$0.1667$
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chucky grabbed 11 items in the grocery store. each item had a different…
B. Both the mean and median will increase, but the mean will increase by more than the median.
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section 5.1 homework score: 7/17 answered: 7/17 question 8 a bag of m&m…
a) 0.35 b) 0.5 c) 0
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chucky grabbed 11 items in the grocery store. each item had a different…
B. Both the mean and median will increase, but the mean will increase by more than the median.
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section 5.1 homework score: 6/17 answered: 6/17 question 7 a bowl conta…
Is each outcome equally likely? No Which outcome is more likely? Red $P(\text{White})=\frac{4}{11}$
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liam works at a zoo. he was looking at some data showing the masses of …
C. The mean will decrease, and the median will stay the same.
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a group of people were asked if some people see the future in their dre…
$0.4727$
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a group of people were asked if some people see the future in their dre…
$0.4727$
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ariana was looking at rent costs for 5 apartments. each rent was a diff…
D. Both the mean and median will decrease, but the mean will decrease by more than the median.
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question 6 a group of people were asked if some people see the future i…
$0.4727$
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section 5.1 homework score: 4/17 answered: 4/17 question 5 a die is rol…
(a) 0.1667 (b) 0.5000 (c) 0.3333
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section 5.1 homework score: 3/17 answered: 3/17 question 4 a special de…
a. 9 b. 0.556 c. 0.444
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section 5.1 homework score: 2/17 answered: 2/17 question 3 a phenomenon…
the probability of the event A
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section 5.1 homework score: 1/17 answered: 1/17 question 2 kaitlyn is f…
C. HH, TT, HT, TH
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the manager of a restaurant found that the cost to produce 300 cups of …
a. $C(x)=0.084x + 4.35$ b. $4.35$ c. $96.75$ d. $96.83$ e. $8.4$ f. $8.4$
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a college has a financial aid formula that applies to applicants whose …
$f(-4)=8000$, meaning a qualifying applicant with - 4 siblings in their household would get $8000$ in financial aid. This interpretation is not valid in the context of the problem…
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answer attempt 2 out of 2 f(-2)= -34, meaning that -2 seconds after the…
$0\leq x\leq6$
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the stem and leaf plot shows the number of items in each of the 12 coll…
2
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the following histogram summarizes the ages of the 25 employees who wor…
1
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the following histogram summarizes the ages of the 25 employees who wor…
1
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the stem - and - leaf plot shows the number of days of snowfall at a wi…
0
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zip - codes are numerical designations of locations for the purpose of …
0
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the data represent the results for a test for a certain disease. assume…
$0.159$
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based on a poll, 70% of internet users are more careful about personal …
The probability that at least one of them is careful about personal information is $0.992$. B. It is very possible that the result is not valid because the sample may not be repre…
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walter (lifting his head slowly): mama... i never... went to the bank a…
Watching someone you love suffer is very painful.
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in a certain country, the true probability of a baby being a boy is 0.5…
$0.982$
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fill in the blank. selections made with replacement are considered to b…
independent events
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which word is associated with multiplication when computing probabiliti…
B. And
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height of the object above the ground, in feet, x seconds after being l…
\(f(-2)=-34\), meaning that \(-2\) seconds after the object was launched, the object was \(-34\) feet above the ground. This interpretation does NOT make sense in the context of t…
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center, spread, and shape of distributions: medium google classroom mic…
B. The mean is greater than the median.
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center, spread, and shape of distributions: medium students at schools …
$0.2$
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lindner (taking off his glasses): well—i dont suppose that you feel... …
The words reveal the hypocrisy of the people Lindner represents.
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a research center poll showed that 82% of people believe that it is mor…
0.18
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the box - and - whisker plots show data on the heights, in meters, of a…
0.4
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among 500 randomly selected drivers in the 16 - 18 age bracket, 414 wer…
The probability that a randomly selected person in the 16 - 18 age bracket will be in a car crash this year is approximately $0.828$. Would it be unlikely for a driver in that age…
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use the range - rule of - thumb to identify the values that are signifi…
What test scores are significantly low? C. Test scores that are less than 98.0 What test scores are significantly high? C. Test scores that are greater than 116.0
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a data set lists weights (lb) of plastic discarded by households. the h…
a. $3.361$ b. $3.28$ c. $3.28$ d. significantly high
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fill in the blank. the measure of center that is the value that occurs …
mode
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listed below are amounts (in millions of dollars) collected from parkin…
The mean for the security company is $1.48$ million and the mean for the other companies is $1.83$ million. The median for the security company is $1.45$ million and the median fo…
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listed below are the annual tuition amounts of the 10 most expensive co…
A. The mode(s) of the data set is (are) $53846$ E. Nothing meaningful can be concluded from this information except that these are the largest tuitions of colleges in the country …
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listed below are the annual tuition amounts of the 10 most expensive co…
The mean of the data set is $\$52561.10$. The midrange of the data set is $\$52438.50$. The median of the data set is $\$53633.50$. A. The mode(s) of the data set is (are) $\$5384…
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find the (a) mean, (b) median, (c) mode, and (d) midrange for the given…
(a) $1.857143$ (b) $2$ (c) $1,2$ (d) $2.5$ For the question "Do the measures of center make sense?": C. Only the mode makes sense since the data is nominal.
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construct a scatter diagram using the data table. this data is from a s…
C. Yes, as the amount of tar increases the amount of carbon monoxide also increases.
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construct a scatter diagram using the data table. this data is from a s…
The scatter - diagram that best represents the data is C. There appears to be a positive relationship between cigarette tar and CO, meaning as the amount of tar in a cigarette inc…
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for a data set of brain volumes (cm³) and iq scores of six males, the l…
greater than the critical value, is
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for a data set of brain volumes (cm³) and iq scores of six males, the l…
$- 0.811,0.811$
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for a data set of chest sizes (distance around chest in inches) and wei…
Since the correlation coefficient \(r\) is between \(- 0.754\) and \(0.754\), there is not sufficient evidence to support the claim of a linear correlation.
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for a data set of chest sizes (distance around chest in inches) and wei…
$-0.754,0.754$; There is not sufficient evidence to support a claim of a linear correlation between chest sizes and weights of the bears.
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for a data set of brain volumes (cm³) and iq scores of four males, the …
Since the correlation coefficient $r$ is greater than the positive critical value, there is sufficient evidence to support the claim of a linear correlation.
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for a data set of brain volumes (cm³) and iq scores of four males, the …
$-0.950,0.950$; There is a significant linear correlation because the absolute value of the linear correlation coefficient $|r| = 0.989$ is greater than the critical value of $0.9…
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the table lists weights (pounds) and highway mileage amounts (mpg) for …
B. Option Text
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question 18 the dsm classification system is said to be \multiaxial.\ t…
permits multiple diagnoses of a single individual.
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construct a scatter diagram using the data table. this data is from a s…
A. Yes, as the amount of tar increases the amount of carbon monoxide also increases
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the table provided below shows paired data for the heights of a certain…
D. No, there does not appear to be a correlation because there is no general pattern to the data.
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the table provided below shows paired data for the heights of a certain…
Without seeing the actual data points in the table, we cannot definitively choose the correct scatter - plot or determine the correlation. However, if the points are randomly scat…
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what is a scatterplot and how does it help us? choose the correct answe…
C. A scatterplot is a graph of paired (x, y) quantitative data. It provides a visual image of the data plotted as points, which helps show any patterns in the data.
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when five basketball players are about to have a free - throw competiti…
\(\frac{1}{120}\)
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when testing for current in a cable with seven color - coded wires, the…
21
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a clinical test on humans of a new drug is normally done in three phase…
a. C. 19,958,400 b. 495 c. $\frac{1}{495}$
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a corporation must appoint a president, chief executive officer (ceo), …
$\frac{1}{1365}$
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a presidential candidate plans to begin her campaign by visiting the ca…
$\frac{1}{14190}$
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a thief steals an atm card and must randomly guess the correct three - …
$\frac{1}{1000}$
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a thief steals an atm card and must randomly guess the correct three - …
The number of possible codes is 1000. The probability of a correct guess on the first try is $\frac{1}{1000}$.
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assume that there is a 11% rate of disk drive failure in a year. a. if …
$0.998669$
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assume that there is a 11% rate of disk drive failure in a year. a. if …
a. $0.9879$ b. $0.9987$
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the table below displays results from experiments with polygraph instru…
0.698
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the data represent the results for a test for a certain disease. assume…
0.946
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in an experiment, college students were given either four quarters or a…
\(0.708\)
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in an experiment, college students were given either four quarters or a…
A. A student given a $1 bill is more likely to have kept the money than to have spent the money
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in an experiment, college students were given either four quarters or a…
C. A student given four quarters is more likely to have spent the money.
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in an experiment, college students were given either four quarters or a…
0.378
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in an experiment, college students were given either four quarters or a…
0.622
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based on a poll, 67% of internet users are more careful about personal …
The probability that at least one of them is careful about personal information is $0.988$. B. It is very possible that the result is not valid because the sample may not be repre…
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based on a poll, 67% of internet users are more careful about personal …
$0.988$
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question 10 0.17 pts hans seyles work was important because it showed t…
that positive change is just as stressful as negative change.
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in a certain country, the true probability of a baby being a girl is 0.…
$0.984$
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in a certain country, the true probability of a baby being a boy is 0.5…
$0.958$
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assuming boys and girls are equally likely, find the probability of a c…
$\frac{1}{2}$
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in a study of helicopter usage and patient survival, among the 57,072 p…
$0.741$
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describe the association in the scatter plot below. answer attempt 1 ou…
The scatter plot shows a negative association because as the plotted values of x increase, the values of y generally decrease.
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use the dictionary entry for crude to answer the question. crude crude …
The architect drew a crude sketch of his design to give his clients a general idea of what he wanted to build. Kenzo became much more polite and less crude after the teacher spoke…
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which excerpt from the most dangerous game best portrays zaroff as rain…
C. "Why should I not be serious? I am speaking of hunting." "Hunting? General Zaroff, what you speak of is murder."
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the root chron means time. what does the word chronic mean? happening i…
happening frequently or for a long duration
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the root fic or fac means do or make. what does the word prolific mean?…
productive or fruitful
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determine whether the statement makes sense or does not make sense, and…
D. No, this does not make sense because the margin of error of the survey is $\pm2.9\%$, which means that we can be 95% confident that between 48.1% and 53.9% of voters are in fav…
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why was trade with europeans so disruptive to native american life duri…
- Question 1: It rapidly introduced new technologies. - Question 11: Citizens are the source of all political power. - Question 12: fourteenth
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express the following probability as a simplified fraction and as a dec…
The probability as a simplified fraction is $\frac{37}{75}$. The probability as a decimal is approximately $0.49$.
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based on the boxplot above, identify the 5 number summary
8, 13, 15, 18, 20
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what is the most common purpose for composition in art? a. it helps the…
C. It provides an understanding of, and agreement among, all the elements
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linear equations w/ distribution (lev 1) score: 0/5 penalty: none quest…
$x = 1$
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4. what does the author mean by the following sentence? \my stomach san…
A. Jamie was upset and nothing could change that.
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what actions characterize authoritarian governments? select three answe…
# Brief[SSE Completed, Client Connection Error][SSE Completed, Client Connection Error][LLM SSE On Failure]
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suppose you spin the spinner twice. what is the probability of spinning…
3
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in this problem, you will use desmos to compute a few statistics. • ope…
$101.9$
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a teacher put all her students quiz scores up on the dot plot below. qu…
26
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every 3 months, the government releases median weekly earnings of full …
a. \(980\) b. \(963.15\), less than
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select the text from the paragraph that best helps you understand that …
"served under conditions inimical to safety", "flimsy plywood planes that lacked radios, radar, and even parachutes"