Statistics & Probability
Data analysis, probability distributions, hypothesis testing, and statistical methods.
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the boxplot below displays ratings for tv shows during sweeps week. 50%…
75%
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the boxplot below shows salaries for construction workers and teachers.…
Jennie makes more money. The difference is $\$10000$.
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if a person is making the maximum salary for a construction worker, the…
10%
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read the excerpt from its our world, too!: young people who are making …
including facts and details about the topic.
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which of the following statements are true about the boxplot shown here…
All of the statements (I, II, and III) are true, so the answer is I and II and III.
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determine the distribution of the data pictured below. based on the sha…
Median and Quartiles, Skewed - right
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based on the shape of the distribution, which summaries are appropriate…
If the distribution is symmetric: mean and standard deviation. If the distribution is skewed: Median & Quartiles.
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determine the distribution of the data pictured below. based on the sha…
Skewed - right
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based on the boxplot above, identify the 5 number summary
Minimum: 6, Q1: 9, Median: 12, Q3: 15, Maximum: 19
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question help: a data value must be lower than to be considered a low o…
Low outliers: values less than - 60; High outliers: values greater than 260
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the journal de botanique reported that the mean height of begonias grow…
(a) $H_0:\mu = 36$, $H_1:\mu eq36$ (b) t - test (c) $1.714$ (d) $0.125$ (e) No
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determine the quartiles, the iqr, and then use the 1.5 x iqr rule to ch…
$Q_1 = 60$ $Q_3 = 140$ $IQR = 80$ No outliers.
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the five - number summary of a dataset was found to be: 1, 10, 13, 19, …
A low outlier is below - 15.5 and a high outlier is above 40.5.
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as you hopefully learned in your research, all the groups were either e…
Culture is the set of shared beliefs, values, traditions, practices, and ways of life of a group, which defines their identity and is transmitted across generations while evolving.
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the scores of n = 8 math tests were 61, 96, 75, 79, 69, 86, 79, 91. wha…
\(Q_1 = 72\), \(Med = 79\), \(Q_3 = 88.5\)
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farmers faced economic hardships during the late 19th century for the f…
C. A lack of enough hard currency in circulation to create inflation meant farm produce cost too little
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question 4. two classes were given identical quizzes. class a had a mea…
Class B scored better on average and had more consistent scores.
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thanks to an initiative to recruit top students, an administrator at a …
(a) $H_0:\mu = 110$, $H_1:\mu>110$ (b) $t$-test statistic (c) $1.833$ (d) $1.325$ (e) Yes
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the following are a students five exam scores: 77,72,63,62,68. calculat…
Mean: \(68.4\) Standard deviation: \(6.27\)
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question 5 what job matches the description below? develop sales plans,…
- Question 5: b. Sales and Marketing Manager - Question 6: b. They build better communication skills - Question 7: a. The availability of jobs allows for employees to advance quic…
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a group of 10 students was asked how many hours they slept the night be…
What is the mean? 7.6 What is the median? 8.5 What are the revised mean and median (without the outlier)? Mean: 8.44, Median: 8.5 Which changed more by removing the outlier? mean
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according to a leasing firms reports, the mean number of miles driven a…
(a) $H_0:\mu = 12700$, $H_1:\mu<12700$ (b) z - test statistic (c) $-2.524$ (d) $0.006$ (e) Yes
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question 1 the following refer to the following data - set: 70 106.9 62…
Mean: $87.22$, Median: $86.9$
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math and graphing tutorial the slope of the blue curve measures the pla…
At point A, the slope of the curve is $5$, which means that the plane is ascending at a rate of $5000$ feet per minute. At point B, the slope of the blue curve is $2.5$, which mea…
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with industrialization america saw the rise of the robber barons. this …
Businessmen who became wealthy by exploiting workers and manipulating laws
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a car leasing firms records indicate that the mean number of miles driv…
$H_0:\mu\geq13500$ $H_1:\mu < 13500$
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one personality test available on the world wide web has a subsection d…
(a) $H_0:\mu = 148$, $H_1:\mu<148$ (b) Type I error (c) rejecting, equal to 148, equal to 148
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first read: concept vocabulary. identify the choice that best answers t…
D. He looked quickly and quietly to avoid being noticed.
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first read: concept vocabulary identify the choice that best answers th…
A. She puzzled over different possibilities for a conclusion.
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first read: concept vocabulary identify the choice that best answers th…
D. desire to know or learn
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andrea rolls a number cube twice. she determines p(even, then odd) = 1/…
Andrea's solution is incorrect. The probability of each simple event is \(\frac{1}{2}\). The probability of the compound event is less than the probability of either event occurri…
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calculating the probability of independent events three coins are flipp…
$\frac{1}{8}$
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you roll a 6 - sided die. what is p(6 or even)? write your answer as a …
50%
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you pick a card at random. 2 3 4 5 what is p(not 3)? write your answer …
75%
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you pick a card at random. 3 4 5 6 what is p(odd or prime)? simplify yo…
$\frac{1}{2}$
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you roll a 6 - sided die. what is p(prime)? write your answer as a perc…
50%
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you spin the spinner once. what is p(not factor of 25)? write your answ…
75%
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8. find the sample standard deviation of the following set of scores, c…
# Explicación: ## Paso1: Calcular la media La media $\bar{x}=\frac{3 + 20+15 + 10+13+20+5+20+5+20}{10}=\frac{141}{10}=14.1$ ## Paso2: Calcular las diferencias al cuadrado $(3 - 14…
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8. find the sample standard deviation of the following set of scores, c…
$4.62$
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6b on his sixth attempt, the diver scores 9.0. this score will: the cor…
A. Increase the mean and increase the standard deviation
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6. the scores of five diving attempts by a professional diver are recor…
# Explicación: ## Paso 1: Calcular la media La media $\bar{x}=\frac{6.7 + 6.9+6.7 + 5.4+6.9}{5}=\frac{32.6}{5}=6.52$ ## Paso 2: Calcular las diferencias al cuadrado $(6.7 - 6.52)^…
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question 11 0.5 pts the compromise of 1850: permitted popular sovereign…
Permitted popular sovereignty in the Utah and New Mexico territories
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according to the box plot, in which quarter are the results the most sp…
# Explicación detallada: Un diagrama de caja muestra la mediana, los cuartiles (primer, segundo y tercer cuartil) y los valores extremos de un conjunto de datos. La mediana se rep…
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5. the glass windows for an airplane are cut to a certain thickness, bu…
# Explicación: ## Paso 1: Comprender la estructura del diagrama de caja En un diagrama de caja, el primer cuartil ($Q_1$), la mediana ($Q_2$) y el tercer cuartil ($Q_3$) dividen l…
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a spinner contains 3 equal sections: one red, one yellow, and one blue.…
$\frac{1}{9}$
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two events, a and b, are independent. if p(a) = 0.3 and p(b) = 0.2, wha…
$0.06$
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which events are independent? check all that apply. rolling two number …
rolling two number cubes at the same time choosing a card, and then flipping a coin drawing a marble from a bag, replacing it, then drawing another marble flipping the same coin t…
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which statement correctly describes dependent events? two events are de…
Two events are dependent if the outcome of the first event affects the outcome of the second event.
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for the box plot shown below, find each of the following: lets try that…
# Explicación: ## Paso 1: Encontrar el mínimo El mínimo es el valor más pequeño en el conjunto de datos, que se representa por la punta izquierda del bigote izquierdo en el diagra…
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math and graphing tutorial transcript on april 1, the price of gas at b…
Between April 1 and May 1, Bob's price increased by $\$0.5$, or approximately $10.1\%$. Between May 1 and June 1, Bob's price decreased by $\$0.5$, or approximately $9.2\%$. The d…
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document #3: professor hansen mogens herman hansen was a professor of p…
1. Mogens Herman Hansen was a professor of philology and classics at the University of Copenhagen, a leading expert on Athenian democracy, who retired in 2010. Strengths: Authorit…
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read the excerpt from the love song of j. alfred prufrock. do i dare di…
The speaker believes he cannot change his environment in a positive way.
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which of the following best describes the authors exigence in the passa…
D. The question of how to lead a meaningful life "in a transitional period" (paragraph 9, sentence 1)
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read the excerpt from the love song of j. alfred prufrock. i shall wear…
A. He does not think women find him attractive.
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which excerpt from the love song of j. alfred prufrock indicates that p…
No! I am not Prince Hamlet, nor was meant to be;
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tasks pick one senate and one house committee and describe what it does…
1. Senate Finance Committee: Deals with taxation, tariffs, Social Security, and Medicare. 2. House Ways and Means Committee: Manages taxation, trade, and entitlement programs. 3. …
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read the excerpt from ovids pyramus and thisbe. and may you, mulberry, …
B. A tree is given symbolic meaning.
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create a box - and - whisker graph with the following wages (dollars pe…
Median \(=19\), Q1 \(=11\), Q2 \(=19\), Q3 \(=24.5\), Q4 \(=30\), Range \(=25\)
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7. for each statement, decide whether it is descriptive or inferential.…
(a) Descriptive (b) Inferential (c) Descriptive (d) Inferential (e) Descriptive
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one of the growers is excited by the price increase caused by the bligh…
Before Blight: (No data provided to calculate, but conceptually we know the relationship). After Blight: Total revenue will increase. So the grower's claim that the price increase…
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one of the growers is excited by the price increase caused by the bligh…
The grower's claim is correct because the price elasticity of demand between $15 and $18 per bushel is 0.61 (in - elastic), and an increase in price in the in - elastic range of t…
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the table below shows the altitude of a plane once it begins its descen…
a) $y=-2119.42x + 28500$ b) $11544.64$ c) $13.44$
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story elements narration, characters, diction, mood, narrative techniqu…
1. **Rewrite/Extension**: - As Mrs. Mallard stood there, looking out of the window, a soft knock came at the door. It was her sister Josephine. "Louise, dear," she said gently, "a…
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what is the connotation of a word? (1 point) a word that has more than …
D. The feeling a word evokes besides its literal meaning
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what is the denotation of a word? (1 point) a word that has more than o…
C. The dictionary definition of a word
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5 multiple choice 1 point our conscious experience (awareness of what w…
5. D. Short - term memory 6. D. semantic memory
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6. the result of a survey that ranks a product from 1 to 10 has a stand…
$7.95$
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3 multiple choice 1 point what \magic number\ did george a. miller of h…
3. C. 7 4. A. chunking
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5. a set of test scores has a mean of 82. if you earned a 90% on the te…
5
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2. what is the z - score of a value of 115 with a mean of 100 and a sta…
2. The z - score is 0.75. 4. The weight of the baby is 7.3 lbs.
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an automobile manufacturing plant produced 32 vehicles today: 14 were t…
0.042
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in a survey, 18 people reported the number of hours they spent on the i…
| Number of hours | Relative frequency | | ---- | ---- | | 2 to 7 | 0.07 | | 8 to 13 | 0.27 | | 14 to 19 | 0.40 | | 20 to 25 | 0.27 |
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roman republic part 4: julius caesar 1. which region did caesar annex t…
1. Gaul 2. For glory, resources, and border - security 3. Personal ambition, economic gain, political power - building 4. Pompey 5. Cleopatra 6. Land distribution for veterans, ec…
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all scenarios are normally distributed. 1. what is the z - score of a v…
1. The z - score is - 2. 2. The price of the dress is $\$135$.
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of the people who fished at clearwater park today, 64 had a fishing lic…
$\frac{1}{5}$
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students at a major university in southern california are complaining o…
$10.2$ miles
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on a particular day, a restaurant that is open for lunch and dinner had…
(a) \(0.25\) (b) \(0.69\)
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d) a set of exam scores has a z - score of -0.4 with a standard deviati…
81.8
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here is a table showing all 52 cards in a standard deck. suppose one ca…
(a) $\frac{1}{13}$ (b) $\frac{1}{2}$ (c) $\frac{7}{13}$
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three coins are flipped. the possible results are shown in the tree dia…
$\frac{3}{8}$
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c) the cost of sandals has a mean of $18.30. if the z - score for a $23…
$3$
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question 1 imagine the data on a graph has a mean (μ = 50) and a standa…
Score that is two standard deviations above the mean: 70 Score that is one standard deviation below the mean: 40 Score that is two standard deviations below the mean: 30 Score tha…
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if the mean temperature of a city is 84.6 with a standard deviation of …
94.1
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a) a market researcher is analyzing the results of a customer survey th…
$0.5$
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question 10 the number of magnitude 5 or larger earthquakes in alaska f…
a) $0.0397$ b) $0.3260$ c) $0.2059$ d) $0.2599$
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directions: fill - in the following chart with two exan scene the examp…
| Convention | Definition | |--|--| | verbal irony | When a speaker says one thing but means the opposite. | | dramatic irony | When the audience knows more than the characters in…
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standard normal distribution z - score the normal distribution with a m…
(a) standard deviations; (b) mean; (c) $\sigma$; (d) $\frac{x-\mu}{\sigma}$
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question 10 5 pts a surplus in the market means o not enough production…
Qs>Qd
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question 5 approximately 11% of all people are left - handed. consider …
c) Mean: 2.75 d) Standard deviation: 1.56
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question 11 which of the following is true about \well of moses\ by cla…
It was originally known as The Great Cross It was meant to inspire the prayer of the monks It includes prophets, angels, and Christ
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which of the following is not true about this painting? giovanni arnolf…
A. Giovanni Arnolfini's wife was pregnant with their first child at the time of this painting.
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5. the box plot represents the number of first cousins that a group of …
a. 12 b. 6 c. Yes
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in this problem, round to four decimals when possible. 79% of all ameri…
a. \(0.4237\) b. \(0.6797\) c. \(0.7152\) d. \(0.9477\)
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in this problem, round to four decimals when possible. 77% of all ameri…
a. $P(X = 14)=C(n,14)\times(0.77)^{14}\times(0.23)^{n - 14}$ b. $P(X\leq11)=\sum_{k = 0}^{11}C(n,k)\times(0.77)^{k}\times(0.23)^{n - k}$ c. $P(X\geq20)=1-\sum_{k = 0}^{19}C(n,k)\t…
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6. let (j(x)=sqrt{x + 1}). find (j^{-1}). 7. let (g(x)=2x^{3}-5). write…
\(j^{-1}(x)=x^{2}-1,x\geq0\) ### 7.
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6. let (y(x)=sqrt{x + 1}). find (y^{-1}). 7. let (g(x)=2x^{3}-5). write…
1. \(y^{-1}=(x - 1)^2,x\geq1\) 2. \(h(x)=\sqrt[3]{\frac{x + 5}{2}}\) 3. a. \(h\) b. \(g\) c. \(f^{-1}(g)=\frac{g^{2}+1}{2},g\geq0\) 4. \(t = f^{-1}(c)\) represents the number of h…
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25% of all college students major in stem (science, technology, enginee…
a. Approximately \(0.130\) b. Approximately \(0.786\) c. Approximately \(0.557\) d. Approximately \(0.341\)
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text - dependent questions directions: for the following questions, cho…
1. The "roads" symbolize life - choices. 2. B. The speaker admits that the two roads were actually similar, suggesting that one choice was not clearly better than the other. 3. C.…
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a) state the random variables. rv x = the length of metacarpal of a ran…
b) $r = 0.372$ c) $r^{2}=0.138$
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which of the following most clearly illustrates the meaning of burden? …
First question: Tim carried a great weight of sorrow. Second question: blameworthiness; guilt or blame that is deserved