Statistiques
Analyse de données, distributions de probabilités et tests d'hypothèses.
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a researcher wishes to estimate, with 99% confidence, the population pr…
C. Having an estimate of the population proportion reduces the minimum sample size needed.
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clayton and his friends experimented with different types and amounts o…
Based on the frequency counts above, place the corresponding number of X's in each column of the line - plot. For example, under \(2\) place \(1\) X, under \(2\frac{1}{2}\) place …
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question 2 of 5 what does this passage from \how do i love thee?\ by el…
A. The speaker does not hesitate to love, and she loves with good intention.
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a researcher wishes to estimate, with 99% confidence, the population pr…
\(n = 3484\)
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a pizza maker carefully experimented with how much cheese to put on a p…
Place 1 \(X\) above \(2\frac{3}{4}\), 1 \(X\) above \(3\frac{1}{2}\), 3 \(X\)'s above \(3\frac{3}{4}\), 3 \(X\)'s above \(4\), and 5 \(X\)'s above \(4\frac{3}{4}\) on the line - p…
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fix any punctuation or capitalization errors below. click \submit answe…
Amelia Earhart smiled at the camera. Her friend, meanwhile, snapped a photograph.
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a researcher wishes to estimate, with 99% confidence, the population pr…
\(n = 4148\)
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read this sentence: kenneth stood with his classmates, a fully grown re…
C. The metaphor suggests that Kenneth is very tall.
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brody baked cornbread for his family picnic. he wanted to bring enough …
The line - plot should have \(1\) \(X\) at \(3\), \(2\) \(X\)'s at \(4\frac{3}{4}\), \(1\) \(X\) at \(3\frac{1}{4}\), \(1\) \(X\) at \(2\frac{1}{2}\), \(2\) \(X\)'s at \(4\), \(1\…
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a researcher wishes to estimate, with 99% confidence, the population pr…
A. \(n = 664\) B. \(n = 511\) C. B. Having an estimate of the population proportion reduces the minimum sample size needed.
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abigail is learning to play the electric guitar. to stay focused, she k…
On the line - plot, there are \(2\) X's above \(1\), \(3\) X's above \(1\frac{1}{2}\), and \(3\) X's above \(2\).
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a researcher wishes to estimate, with 99% confidence, the population pr…
\(n = 512\) (Since we round up to the nearest whole number)
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a researcher wishes to estimate, with 99% confidence, the population pr…
\(n = 664\)
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1. jorge is cleaning shrimp. he cleans 4 shrimp every minute. use time …
a. The relationship is proportional. The equation \(y = 4x\) is in the form \(y=kx\) (proportional relationship formula) and its graph is a straight - line passing through the ori…
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jaylen and his friends were making candles from melted wax. there were …
On the line - plot, for the value 1 (cups), there should be 3 X's; for the value \(1\frac{1}{2}\) (cups), there should be 4 X's; for the value 2 (cups), there should be 2 X's.
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question 5 of 10 what is an interpretation? a. a balanced description o…
C. An opinion or theory about the meaning of a written text or work of art
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1. jorge is cleaning shrimp. he cleans 4 shrimp every minute. use time …
a. The relationship is proportional. The equation is \(y = 4x\) (a straight - line through the origin on a graph). b. The unit rate is 4. It means Jorge cleans 4 shrimp per minute…
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in a survey of 711 lesbian, gay, bisexual, or transgender adults in a c…
B. With 90% confidence, it can be said that the population proportion of lesbian, gay, bisexual, or transgender adults who consider themselves bisexual is between the endpoints of…
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how much of the amazon rainforest has been destroyed in the past 50 yea…
a. 17% c. Agriculture d. Clear proof b. Using evidence b. Purpose a. Key details
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in a survey of 711 lesbian, gay, bisexual, or transgender adults in a c…
$(0.570,0.631)$ Interpretation: We are 90% confident that the true proportion of lesbian, gay, bisexual, or transgender adults in the country who consider themselves bisexual lies…
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1. jorge is cleaning shrimp. he cleans 4 shrimp every minute. use time …
a. The relationship is proportional. The equation \(y = 4x\) is in the form \(y=kx\) (where \(k = 4\)), and on a graph, when \(x = 0\), \(y = 0\) (passes through the origin). b. T…
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in a survey of 2350 adults, 723 say they believe in ufos. construct a 9…
D. With 99% confidence, it can be said that the population proportion of adults who believe in UFOs is between the endpoints of the given confidence interval.
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résumé or cv? when applying for a new job, you may be asked to submit a…
Résumés and CVs are similar, but a CV provides a more in - depth look at a person's qualifications for a job.
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in a survey of 2350 adults, 723 say they believe in ufos. construct a 9…
$(0.284,0.333)$
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in a survey of 2521 adults, 1459 say they have started paying bills onl…
A. With 99% confidence, it can be said that the population proportion of adults who say they have started paying bills online in the last year is between the endpoints of the give…
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in a survey of 2521 adults, 1459 say they have started paying bills onl…
$(0.554,0.604)$ Interpretation: We are 99% confident that the true proportion of adults who have started paying bills online in the last year lies between 0.554 and 0.604.
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question 20 what is the critical value for a two - tail t - test with a…
\(T_{cv}=2.14\)
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compare the means of two groups. the first group includes 20 people wit…
\(t = 2.09\)
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in a survey of 2059 adults in a recent year, 724 made a new years resol…
B. The 95% confidence interval is wider.
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if ( f = 3.47 ) and the ( f_{cv} = 3.74 ), then accept the null hypothe…
fail to reject the null hypothesis.
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in a survey of 2059 adults in a recent year, 724 made a new years resol…
The $95\%$ confidence interval for the population proportion $p$ is $(0.331,0.373)$
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question 6 of 10 read these examples: 1. jacob commits a crime but he d…
A. 2, because it helps the reader understand the story's deeper meaning
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if ( f = 4.11 ) and the ( f_{cv}=4.10 ), then accept the null hypothesi…
reject the null hypothesis.
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if t = 2.19 and the critical value = 2.20, then o accept the null hypot…
fail to reject the null hypothesis.
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if t = 2.40 and the critical value = 2.04, then accept the null hypothe…
reject the null hypothesis.
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when the results are not statistically significant, you should accept t…
fail to reject the null hypothesis.
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when the results are statistically significant, you should accept the n…
reject the null hypothesis.
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when conducting a t - test with 23 people in one group and 25 people in…
46
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in a survey of 2059 adults in a recent year, 724 made a new years resol…
$(0.335,0.369)$
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what is an example of evidence that might help develop a body paragraph…
C. A fact pulled from a historical record
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question #9 use the regression equation ( y = - 2.3 + 2.5x ) and the ta…
1.8
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in a survey of 2267 adults in a recent year, 1419 say they have made a …
B. The 95% confidence interval is wider.
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question #7 use the residual plot below to state what conclusion can be…
The regression equation is a good model because there appears to be no obvious pattern.
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in a survey of 2267 adults in a recent year, 1419 say they have made a …
With the given confidence, it can be said that the **proportion** of adults who say they have made a New Year's resolution is **within the range** of the given confidence interval…
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question #5 use the regression equation ( y = - 3.23 + 3.30 x ) and the…
-2.0
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in a survey of 2267 adults in a recent year, 1419 say they have made a …
The 95% confidence interval for the population proportion $p$ is $(0.606,0.646)$
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in a survey of 2267 adults in a recent year, 1419 say they have made a …
$(0.609,0.643)$
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use the given confidence interval to find the margin of error and the s…
\(\hat{p}=0.735\)
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use the given confidence interval to find the margin of error and the s…
$E = 0.014$
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use the given confidence interval to find the margin of error and the s…
$\hat{p}=0.605$
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3 which sentence from the book excerpt shows the authors positive feeli…
3. A. "They know—they feel—that sound impacts our bodies in a way no other art does." 4. A. "the fetal heart rate became slightly elevated" 5. Tonal quality refers to the characte…
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use the given confidence interval to find the margin of error and the s…
$E = 0.015$
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what is the mean? 6 5 4 1 3 9 0
\(4\)
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let p be the population proportion for the following condition. find th…
The point estimate for $q$, $\hat{q}$, is $0.907$.
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let p be the population proportion for the following condition. find th…
\( 0.093 \)
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let p be the population proportion for the following condition. find th…
The point estimate for \( p\), \( \hat{p}\), is \( 0.571 \). The point estimate for \( q\), \( \hat{q}\), is \( 0.429 \).
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6 just because the sound of music exists in the womb doesnt necessarily…
1. B. She realized that nothing was missing from her life. 2. C. The music sounded muted and distant.
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question #2 determine the r - value for the data set below. r = 0.769 r…
\(r = 0.910\)
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mr. torress math class and ms. lees science class are both raising mone…
- The lines would be identical. - They would share infinitely many points. - It means their fundraising plans (initial amount and weekly raising rate) are exactly the same.
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match the terms with their correct definition. match term definition co…
Connotation - B, Denotation - A
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unit 1: rhetorical situation - reading quiz my parents came here from c…
B. The backlog of cases for immigration hearings
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day 3 1. how many more students like pretzels than fruit? __________ 2.…
1. \(8\) 2. \(5:30\); \(2\) hours
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read the following line from ature\ by ralph waldo emerson. then answer…
Homer or Shakespeare [Brief Explanations] La alusión es una referencia indirecta a una persona, lugar, evento o obra de arte. En esta línea, "Homer o Shakespeare" se refiere a dos…
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day 4 felicia wears a bright red dress with a white sash. on her head i…
1. Felicia is a doll. Clues: "Her head is made of china", "shoes are made of real leather", "lived with the same family for over 200 years". 2. Careless. 3. Forgetful.
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peyton farquhar was a well to do planter, of an old and highly respecte…
A. excited and committed
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how does honest communication improve relationships? it avoids hurt fee…
It helps people trust one another.
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which term describes what is happening in the amount per trial vs. time…
Nothing is consumed.
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now i know your first choice today was alice walker-guess how i know!-k…
D. The question of how to lead a meaningful life “in a transitional period” (paragraph 9, sentence 1)
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which term describes what is happening in the amount per trial vs. time…
A. A constant amount is eaten.
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t = 0 s, 8 items eaten t = 4 s, 6 items eaten which phrase describes wh…
A changing amount is eaten.
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amount consumed each trial vs. time (s) how many items are consumed at …
6
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use the text to compare and contrast mandarin and cantonese. if you wan…
| | Mandarin | Cantonese | |--|--|--| | Is a dialect of Chinese | ✔️ | ✔️ | | Has four tones | ✔️ | ❌ | | Is an official language in the United Nations | ✔️ | ❌ |
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the rows below are summarized quotations from the testimony of three di…
Colonist 1: The commander of the British soldiers ordered the British soldiers to fire. Colonist 2: The commander of the British soldiers did not give the order to fire. He was su…
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make a histogram for the data below. (dont forget to label each axis an…
- Ranges with the same frequency: \(0 - 2\), \(3 - 5\), \(6 - 8\) (frequency \(= 1\)) and \(9 - 11\), \(18 - 20\) (frequency \(= 4\)) - Students watching less than 15 hours: \(10\…
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2. mrs. green gives swimming lessons. the histogram represents the numb…
1. \(8\) 2. b) skewed right 3. \(9 - 11\) 4. \(22\) 5. Approximately \(22.7\%\)
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independent practice 1. the overall shape of this graph is 2. how many …
1. For the "Candy Bars Sold by Students" histogram: - The overall shape is skewed (right - skewed as the tail is on the higher - value side). - Approximately \(33.3\%\) of student…
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10. which scatter plot best fits the description below? as the price of…
A.
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9. which scatter plot best fits the description below? the more electri…
B.
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1. the (graph) shows the (width) interval? 2. how many students are rep…
1. \(9\) 2. Approximately \(44.4\%\)
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independent practice 1. plant height experiment 1. the overall shape of…
\(33.3\%\)
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2. mrs. green gives swimming lessons. the histogram represents the numb…
1. 8 2. b) skewed right 3. 9 - 11 4. 22 5. Approximately \(22.7\%\)
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select the word that means sings a love song outdoors at night. mozarts…
serenade
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select the word that means a person who runs away to avoid capture. in …
fugitive
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select the word that means leaving out. you can usually improve your wr…
omitting
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select the word that means to turn over in the water. japans march 2011…
capsize
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select the word that means pieces of equipment used for a specific acti…
apparatuses
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the latina side of my identity was forged and closely nurtured by my fa…
They show the strong connection between the speaker and her family.
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6. use structure the school basketball team had the following scores fo…
An estimate of the points they scored this year (assuming 5 games next year) is about \(200\) (if we round the average of this - year's scores to a whole number for estimation). I…
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subject - verb agreement ject - verb agreement means the subject and pr…
a pronoun that does not explicitly denote a number of subjects
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subject-verb agreement subject - verb agreement means the subject and p…
David wants to go to the store.
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on your own 3. a desert tour includes 305 people traveling by van. each…
A. The number of vans needed is \(\lceil\frac{305}{18} ceil = 17\) (using the ceiling function to round up). B. It is an over - estimate. If we were to underestimate (e.g., say 16…
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select the tables that show a proportional relationship between x and y.
The second table shows a proportional relationship.
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what is the best definition of an appositive? a nonrestrictive phrase t…
a noun or noun phrase that modifies a noun
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read this excerpt from \the open boat\ by stephen crane\: \oh, well,\ s…
C. to suffer harsh consequences
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literary analysis: cite evidence what is a claim? claim = statement + a…
proof that supports the claim
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literary analysis: cite evidence what is a claim? claim = statement + a…
an arguable statement
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match the underlined words in the excerpts from stephen cranes \the ope…
The cook squatted in the bottom and looked with both eyes at the six inches of gunwale which separated him from the ocean. → to crouch or sit with bent knees. "Oh, well," said the…
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2) a class has seven students. what is the probability that exactly fou…
The probability that exactly four of the seven students were born on a weekday is \(\frac{175000}{823543}\approx0.2125\)
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which sentence has an underlined word that means \leave\? during a fire…
During a fire drill, we evacuate the building.
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kuta software - infinite precalculus binomial probability date _w/ar/ar…
1. \(0.276\) 2. \(\approx0.2137\) 3. \(\approx0.2975\) 4. \(\approx0.0577\) 5. \(0.984375\) 6. \(\approx0.9953\)