统计与概率
数据分析、概率分布、假设检验与统计方法。
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question the box plot below represents some data set. what is the minim…
30
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what is the probability of spinning pink and rolling a one? write your …
\(\frac{1}{18}\)
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what is the probability of picking a blue marble and rolling an odd num…
\(\frac{5}{14}\)
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this graph shows how the amount of jam jack has jarred is related to th…
2 days
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31. gym membership the cost of a gym membership is $75 plus $30 per mon…
\(f(12) = 435\). This means that the cost of a gym membership for 12 months is \(\$435\).
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this graph shows how dianas bank account balance is related to the numb…
\(4.50\)
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30. transportation the cost of riding in a cab is $3.00 plus $0.75 per …
\(f(17) = 15.75\). This means that the cost of a cab ride for \(17\) miles is \(\$15.75\).
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question the box plot below represents some data set. approximately wha…
50%
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this graph shows how the length of hassans essay depends on the number …
9.5 hours
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question the dot plot below represents the number of goals scored by th…
1
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this graph shows how the amount of time that a receptionist named tommy…
90 minutes
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question the students in a class collected data on the number of minute…
\( 2 \)
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rearrange the sentence below to remove any wordy sections. do not chang…
Teachers should avoid assigning Charlotte's Web to young readers because of its ending.
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if the mean of a standardized test with a normal distribution is 54.3 a…
47.5
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the heights of a group of 1000 women are normally distributed. the mean…
340
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question 8 on a standardized test, the mean is 68 and the standard devi…
\(95\%\)
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question 7 the scores on an examination have a normal distribution. the…
68%
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question 6 on a standardized test, the mean is 48 and the standard devi…
99%
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the dot plot below represents how long it takes students in a 7th grade…
\(21\)
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question the students in a class collected data on the number of minute…
1
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on ten randomly selected winter weekdays this year, lisa records the da…
The linear correlation coefficient of this data is approximately \(-0.96\). Therefore, there is a strong negative correlation between the daily high outdoor temperature and the am…
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question a teacher put all her students quiz scores up on the dot plot …
5
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question 5 a given set of scores forms a normal distribution. the mean …
34
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on a standardized test, the mean is 37 and the standard deviation is 2.…
\(95\%\)
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on a standardized test with normal distribution, the mean is 75 and the…
816
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if a line of best fit is drawn on the scatter plot below, what is the m…
B. \((6,0)\)
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the dot plot below represents the number of goals scored by the girls s…
1
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one thousand students took a test resulting in a normal distribution of…
680
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the scores of an exam have a normal distribution. the mean of the score…
68%
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read the excerpts from the poem in the boxes below. drag one sentence f…
1. “for flowers / Mid - summer is to spring as one to ten” → Early blooms have faded. 2. “He says the highway dust is over all” → Everything is dull and dry.
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read the sentence below. drag one word to each box to explain how figur…
First box: onomatopoeia Second box: familiar
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a teacher takes the semester exam scores for the first semester of a co…
D. 37
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a sample of survey data shows the age and height of 15 randomly chosen …
B. \(0.21\)
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this table shows the breakfast choices of 20 students. calculate the re…
$35$
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this table shows the favorite pets of 20 students. find the relative fr…
\(40\)
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this table shows the favorite pets of 20 students. what is the relative…
25%
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this table shows the favorite school subjects of 20 students. what is t…
\(30\)
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this table shows the favorite ice cream flavors of 25 students. find th…
$20\%$
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the senators have won 75% of the games played against the canadiens ove…
\(0.087\)
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a hockey player is practicing shooting at the goal from the blue line. …
0.8516
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question 8 a true - false test has 10 questions. if lisa answers all qu…
\(\frac{55}{1024}\) (the second option)
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according to the histogram, what is the frequency of the frequency of d…
\(8\)
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gloria is a softball player. she has a 0.32 chance of hitting the ball …
0.92
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according to the histogram, what is the frequency of the frequency of p…
\(3\)
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according to the histogram, what is the frequency of books read in the …
\(6\)
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question 4 in 5 tosses of a fair coin, what is the probability of exact…
0.313
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according to the histogram, what is the frequency of temperatures in th…
\(5\)
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if mike piazza has a batting average of 0.348, what is the probability …
0.215
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according to the histogram, what is the frequency of the frequency of p…
\(4\)
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which of the following conditions are necessary to use the binomial dis…
I and II only
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which histogram represents this data?
The right histogram.
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question 1 a new drug cures 65% of the patients who take it. if it is g…
0.0839
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this graph shows how the total number of novels bobby has in his collec…
\( 90 \)
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¿qué significa la palabra (what does the word mean): libro? * table pen…
- First question: C. book - Second question (matching): - Yo: I - Nosotros: We - Tú: You (informal) - Ellos: They - Ella: She
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in passage 1, how does the characterization of the boys friendship in t…
The first paragraph characterizes the boys' friendship as one that is strong and close, which then contrasts with their subsequent time apart and lack of communication.
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is there a positive, negative or no correlation? the number of homework…
No correlation.
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question state true/false if there is a causation: the number of cold, …
True
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question which of the following regressions represents the strongest ne…
Regression 3
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which graph shows the line of best fit for the data?
The bottom - left graph shows the line of best fit for the data.
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draw an appropriate trend line. then, answer the questions below. hot c…
# Ex[SSE Completed, Client Connection Error][SSE Completed, Client Connection Error][LLM SSE On Failure]
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hat is the equation of the trend line in the scatter plot?
\(y = 3x-9\)
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which graph shows the line of best fit for the data?
The first graph shows the line of best fit for the data.
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which graph shows the line of best fit for the data?
The second graph shows the line of best fit for the data.
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describe the correlation in the scatter plot below. answer attempt 1 ou…
The scatter plot shows a negative correlation because as the plotted values of \(x\) increase, the values of \(y\) generally decrease.
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describe the association in the scatter plot below. answer the scatter …
The scatter plot shows a positive association because as the plotted values of \(x\) increase, the values of \(y\) generally increase.
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describe the association in the scatter plot below. answer attempt 1 ou…
The scatter plot shows no association because as the plotted values of \(x\) increase, the values of \(y\) generally do not follow a consistent increasing or decreasing pattern.
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describe the correlation in the scatter plot below. answer attempt 1 ou…
The scatter plot shows a positive correlation because as the plotted values of \(x\) increase, the values of \(y\) generally increase.
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kevins math teacher plots student grades on their weekly quizzes agains…
The \(y -\)intercept represents the quiz score of a student who spends \(0\) hours on homework per week.
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question 12 of 20: you survey 100 customers. you ask a question with 4 …
d) 70
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mackenzie keeps track of the number of people inside a music hall to at…
At 7:15 p.m. (1.25 hours after 6 p.m.), there are 142 people inside the music hall.
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in a class of students, the following data table summarizes how many st…
\(\frac{7}{9}\)
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in a class of students, the following data table summarizes how many st…
$\frac{11}{16}$
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which statements describe characteristics of a nonrestrictive clause? s…
- It is set off by commas. - It contains a subject and a verb. - It adds nonessential information to the sentence.
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read the quotation by louis aragon. i demand that my books be judged wi…
Aragon wants his readers to be well informed and understand the true meaning of his writing.
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20 seventh graders said they have pets.20 seventh graders said they don…
| | Pets | No Pets | Total | |---|---|---|---| |7th grade|25|20|45| |8th grade|20|15|35| |Total|45|35|80|
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a random sample of students was surveyed and asked to list their grade …
| | Pets | No Pets | Total | |---|---|---|---| |6th grade|11|10|21| |7th grade|28|18|46| |8th grade|25|12|37| |Total|64|40|104|
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a survey asked a random sample of students if they estimated they spent…
7th grade "More": \(18\), 7th grade "Less": \(12\), 8th grade "More": \(27\), 8th grade Total: \(52\), Total "More": \(45\)
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grocery options what percent of the women surveyed shop at a local groc…
$79\%$
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moussa recorded the grade level and instrument of everyone in the middl…
$25.5\%$
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when rashad commutes to work, the amount of time it takes him to arrive…
The interval that represents the middle 95% of his commute times is from 29 minutes to 39 minutes.
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passage 3 maria stayed up late studying for her math test. she was tire…
No. This is just a simple narrative of Maria studying for a test and taking it. There is no symbolic or deeper meaning (like a moral, political, etc.) beyond the surface - level e…
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in an all boys school, the heights of the student body are normally dis…
68%
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passage 3 maria stayed up late studying for her math test. she was tire…
For the first question: No. It is just a simple event without symbolic or deeper meanings. For the matching: A → 2 B → 3 C → 1
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goals scored what was the median number of goals scored?
\(2\)
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the students in a class collected data on the number of minutes some of…
4
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east high wants to estimate the number of seniors who plan to go to a 4…
(a) The sample of \(20\) seniors randomly selected from all seniors. (b) \(375\)
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east high wants to estimate the number of seniors who plan to go to a 4…
(a) \(20\) seniors are randomly selected from the senior class; \(18\) plan to go to go to a \(4 -\)year college. (b) \(375\)
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read the excerpt from anthem i stand here on the summit of the mountain…
discovery and exploration
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allegory practice worksheet part 1: quick review what is an allegory? a…
Passage 1: Yes. The flowers might represent different groups (like social or economic groups) competing for resources (sunlight as resources). The oak tree could represent a domin…
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the students in a class collected data on the number of minutes some of…
6
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figurative language the enemies by elizabeth jennings last night they c…
1. A. Fear of strangers can erode trust. 2. B. She means people she was friends with. 3. The enemy is the fear of the unknown (the strangers).
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siblings what was the median number of siblings?
\(2\)
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figurative language the lockless door by robert frost it went many year…
1. A. unsure about what to do 2. D. welcomes the knocker in while safely outside 3. The lockless door could symbolize openness (no barrier to keep people out) but also a lack of p…
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figurative language except from empty candy jar by hulwen i am from bui…
1. B. sad 2. C. She does not like salted dumplings. 3. The poet means that her memories (moments) are like an empty candy jar - once full (of experiences, perhaps sweet ones), but…
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the formula ( v = c(i) ) describes the relationship between voltage (v)…
27 - 23i volts
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the box - and - whisker plot below represents some data set. what is th…
\(40\)
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find the median and mean of the data set below: 38, 24, 31, 24, 3, 33, …
Median = \(24\), Mean = \(23\)
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figurative language to the river by edgar allan poe fair river! in thy …
A. liveliness of the river
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figurative language excerpt from three by sam my father pushed me out o…
- First Question: D. From a very young age the poet felt a connection with water. - Second Question: C. embraced him like a father - Third Question: The use of short sentences cre…
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based on the following calculator output, determine the range of the da…
126