Statistiques
Analyse de données, distributions de probabilités et tests d'hypothèses.
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24. a sample of $n = 10$ scores has a sample mean of $m = 25$ and a sam…
$\sum X = 250$, $SS = 144$
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finding the main idea you will find three different paragraphs regardin…
C. Reconstruction was a time period where some people took advantage of the chaos that occurred after the war for personal gain; this behavior caused the white Southerners to beco…
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finding the main idea you will find three different paragraphs regardin…
B. Reconstruction is the time after the Civil War meant to rebuild the South that led to some protections for ex - slaves while feeding the anger and frustration of the southern w…
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wild geese by mary oliver you do not have to be good. you do not have t…
Metaphor: "the soft animal of your body", compares body to a soft animal. Simile: "calls to you like the wild geese", compares the world's call to the call of wild geese.
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what is the difference between verbal irony and situational irony? (1 p…
D. Verbal irony is when someone says the opposite of what they mean, while situational irony is when the expected outcome of an event defies normal expectations.
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the general social survey is an annual survey given to about 1500 u.s. …
(a) $H_0: p_1 - p_2 = 0$, $H_1: p_1 - p_2 eq0$ (b) Two - sample z - test for proportions (c) $2.834$ (d) $0.005$ (e) Yes
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suppose that $chi^{2}$ follows a chi - square distribution with 27 degr…
(a) $0.729$ (b) $43.19$
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let $p_1$ and $p_2$ be the respective proportions of women with nutriti…
Lower limit: $-0.077$ Upper limit: $0.119$
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3. based on the data, about how many members would you expect the chess…
28
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choose the poem that uses alliteration. look back with longing eyes and…
The first poem: "Look back with longing eyes and know that I will follow, Lift me up in your love as a light wing lifts a swallow, Let our flight be far in sun or windy rain— But …
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a cognitive scientist wants to test whether there is any difference in …
(a) \(H_0:\mu_1\geq\mu_2\), \(H_1:\mu_1 < \mu_2\) (b) Two - sample t - test (c) \(-0.763\) (d) \(0.230\) (e) No
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vcu rams stats - 2016-17 year 2016 - 17 game statistics player gp min p…
1. Doug Brooks 2. Approximately 16.65 3. Jordan Burgess
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a nationwide job recruiting firm wants to compare the annual incomes fo…
(a) $H_0:\mu_1\leq\mu_2$, $H_1:\mu_1 > \mu_2$ (b) z - test (c) $1.983$ (d) $2.326$ (e) No
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calculate ss, variance, and standard deviation for the following sample…
$SS = 36$, Variance $= 9$, Standard Deviation $= 3$
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swimming statistics directions: use the image of the swimming pool to a…
1. 14 laps 2. 4.807 seconds 3. 1000 inches 4. $\frac{5}{3}\approx1.67$ meters 5. 90 laps
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question a mathematics teacher wanted to see the correlation between te…
99
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read the excerpt from daniels comparative essay. (1) despite the many f…
It focuses on one main character and one main plot event.
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question a mathematics teacher wanted to see the correlation between te…
Regression Equation: $y = 1.1x-10.6$ Final Answer: $44$
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read the excerpt from ronald reagans \tear down this wall\ speech. as i…
The repetition emphasizes the principles of freedom.
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question the number of newly reported crime cases in a county in new yo…
629
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los puntos de datos en el siguiente diagrama de dispersión muestran el …
# Explicación: ## Paso 1: Identificar los puntos Observar los puntos de datos en el diagrama de dispersión que representan la relación entre la taquilla (en millones de dólares) e…
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juan and neo play a game. each player holds out a hand at the same mome…
The list of all possible combinations is: (R,R), (R,P), (R,S), (P,R), (P,P), (P,S), (S,R), (S,P), (S,S). The probability that they both choose the same object is $\frac{1}{3}$.
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the following histogram represents the number of text sent in a day by …
25%
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the following data was used to make a histogram. 8, 20, 20, 25, 41, 58,…
3
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a data set 20, 36, 52, 56, 24, 16, 40, 4, 28 represents the number of b…
A box - plot is constructed with minimum = 4, Q1 = 18, Q2 = 28, Q3 = 46, maximum = 56.
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6 what is the value of the third quartile in the box plot shown below? …
(3) 36
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26 the sixth - grade classes at west road elementary school were asked …
38%
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data set 20, 36, 52, 56, 24, 16, 40, 4, 28 represents the number of boo…
38
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26 julia surveyed 150 of her classmates at city middle school to determ…
| | Horse | Dolphin | Penguin | Total | |---|---|---|---|---| | Male | 28 | 18 | 23 | 69 | | Female | 14 | 42 | 25 | 81 | | Total | 42 | 60 | 48 | 150 |
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26 julia surveyed 150 of her classmates at city middle school to determ…
(2) 45.2
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a box plot is shown below. which number represents the third quartile? …
(3) 60
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14 donna and andrew compared their math final exam scores from grade 8 …
(3) Andrew has a larger interquartile range than Donna.
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28 the ages of the last 16 united states presidents on their first inau…
$10.5$
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berkeley central high school, a survey was conducted to see if students…
(2) 37
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10 different ways to represent data are shown below. which data represe…
(4) I, II, and III
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22 given the following data set: 65, 70, 70, 70, 70, 80, 80, 80, 85, 90…
(4) I, II, and III
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10 a middle school conducted a survey of students to determine if they …
(3) 72
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19 below are two representations of data. a: 2,5,5,6,6,6,7,8,9 b: which…
(3) upper quartile of A < upper quartile of B
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5) data set 6, 4, 23, 17, 12, 16, 21, 20 median = ____ upper quartile =…
Median = \(16.5\) Upper Quartile = \(20.5\) Lower Quartile = \(9\) IQR = \(11.5\)
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4) data set: 45,62,72,45,62,72 median = ____ upper quartile = ____ lowe…
Median = 62 Upper Quartile = 72 Lower Quartile = 45 IQR = 27
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3) data set: 2, 12, 4, 14, 5, 13, 8, 19, 17, 15 median = ______. upper …
Median = $12.5$, Upper Quartile = $15$, Lower Quartile = $5$, IQR = $10$
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question 25 ahmad buys a bag of cookies that contains 6 chocolate - chi…
$0.1429$
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a ball is drawn randomly from a jar that contains 7 red balls, 5 white …
a. $0.3684$ b. $0.2632$ c. $0.7368$
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e and f are mutually exclusive events. p(e) = 0.1; p(f) = 0.6. find p(e…
0
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in a survey of 274 professional athletes, it was found that 136 of them…
1. 33 2. 57 3. 187 4. 132 5. 241 6. 105
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question 3 (4 points) what is the primary constitutional purpose of the…
To apportion seats in the U.S. House of Representatives among the states
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suppose $n = 11$ and $r = 4$. compute the hypergeometric probabilities …
a. 0.42 b. 0.109 c. 0.2121 d. 0.18 e. 0
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christianity and the social crisis it used to be a fine thing to mark h…
The third option (since the first two are incorrect based on the text's meaning and the third likely aligns with the idea of poor circumstances for immigrants as described).
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food allergies affect an estimated 17% of children under age 5 in the u…
$0.851$
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1) data set: 4, 8, 6, 2, 9, 7, 5, 7, 8, 10 median = ____ upper quartile…
Median = $7$ Upper Quartile = $8$ Lower Quartile = $5$ IQR = $3$
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in every community there are men of goodwill, who, if they had the mone…
The rich are more fit and are thus more able to provide help.
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read the passage from the railroad builders by john moody. then, decide…
B) Half of the United States preferred transportation by boat and the other half favored the railroad. The dilemma was a source of disagreements, conversations, and news articles …
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text evidence, context clue, what i think the word means, dictionary de…
For "probing": Context Clue - Hand movement indicating exploration; What I think the word means - poking/examining something; Dictionary Definition - physically exploring or exami…
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1) data set: 5, 2, 8, 4, 7, 10, 13, 12, put data in order: ____________…
Put Data in Order: $2,4,5,7,8,10,12,13$ Median: $7.5$ Upper Quartile: $11$ Lower Quartile: $4.5$ IQR: $6.5$
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data set: 23, 18, 17, 9, 21, 27, 12, 14, 13, 16 put data in order: 9, 1…
Median $= 17$, Lower Quartile $= 12.5$, Upper Quartile $= 22$, $IQR = 9.5$
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context clues determine the meaning of the bolded words in each example…
| Text Evidence | Context Clue | What I think the word means | Dictionary Definition | |--|--|--|--| | Greg, except for an involuntary tremor in his knees, stood stock still. | Th…
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chapter 3 - 4 practice test due sun sep 23, 2025 11:59pm attempt 1 in p…
Mean: $12.54$ Variance: $3.8284$ Standard Deviation: $1.9566$ Expected Value (same as mean for discrete random variable): $12.54$
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5. solve the following by factoring. be sure to state the zeros/x - int…
a) For \(9n^{2}-25\), zero/x - intercepts are \(n =-\frac{5}{3}\) and \(n=\frac{5}{3}\); for \(4x^{2}+20x=-25\), zero/x - intercept is \(x =-\frac{5}{2}\) b) For \(5x^{2}-4x + 11 …
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1) data set: 5, 2, 8, 4, 7, 10, 13, 12. put data in order: ____ median …
Put Data in Order: $2,4,5,7,8,10,12,13$ Median $=7.5$ Upper Quartile $=11$ Lower Quartile $=4.5$ IQR $=6.5$ ### 2. Second data - set: 23, 18, 17, 9, 21, 27, 12, 11, 13, 16
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use the following probabilities to answer the question. round to 4 deci…
$0.1111$
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79% of all bald eagles survive their first year of life. give your answ…
a. $0.137$ b. $0$ c. $1$ d. $0.874$
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read the paragraph. when you are writing, try to incorporate interestin…
include
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2. test scores, out of 100 points 92 84 95 77 74 80 95 70 66 73 68 90 7…
| Interval | # of values | | ---- | ---- | | 50 - 59 | 1 | | 60 - 69 | 4 | | 70 - 79 | 12 | | 80 - 89 | 4 | | 90 - 99 | 6 |
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2. test scores, out of 100 points 92 84 95 77 74 80 95 70 66 73 68 90 7…
| Interval | # of values | |--|--| | 50 - 59 | 1 | | 60 - 69 | 4 | | 70 - 79 | 12 | | 80 - 89 | 3 | | 90 - 99 | 7 |
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79% of all bald eagles survive their first year of life. give your answ…
a. $0.139$ b. $0.247$ c. $0.456$ d. $0.910$
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consider the discrete random variable x given in the table below. calcu…
$\mu = 13.9400$ $\sigma^{2}=39.9164$ $\sigma = 6.3179$ The expected value of $X$ is $13.9400$
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directions: create a histogram for each set of data. for the first prob…
| Interval | # of values | |--|--| | 1 - 20 | 0 | | 21 - 40 | 4 | | 41 - 60 | 6 | | 61 - 80 | 6 | | 81 - 100 | 5 |
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multiple - choice 1 point the spell worked! i knew la llorona was real,…
excited
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based on its use near the end of the text, which word most nearly means…
B. comfort
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b. what is the expected number of occurrences in three time periods? 6 …
0.1040
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2 $f(x)=\frac{2^{x}e^{-2}}{x}$ 3 $f(x)=\frac{2^{x}e^{2}}{x!}$ equation …
$0.1377$
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a. which of the following is the appropriate poisson probability functi…
a. Equation #1 b. 6 c. Equation #3 d. 0.2707 e. 0.1055
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consider a poisson distribution with a mean of two occurrences per time…
a. 1. $f(x)=\frac{2^{x}e^{-2}}{x!}$ b. 6 c. 3. $f(x)=\frac{6^{x}e^{-6}}{x!}$ d. 0.2707
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reread the sentences from the passage. today, bataclan has given away n…
fans and friends
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section 6.1 homework score: 15.99/21 answered: 16/21 question 21 determ…
Discrete
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section 6.1 homework due monday by 11:59pm points 21 submitting an e se…
Continuous
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section 6.1 homework score: 13.99/21 answered: 14/21 question 19 is thi…
Continuous
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you want to measure traffic on ca-283 n/wildwood ave bridge during the …
The number of cars that use the bridge in one hour, The total number of cars that cross the bridge
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identify the histogram for the probability distribution below. |x|p(x)|…
The first histogram shown in the image.
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question 2 what key elements are essential in the literal meaning of a …
B. character, setting, plot
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question 1 what does the literal meaning of a text refer to? only chara…
What actually happens in a story on the surface
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select the correct histogram for the probability distribution: |x|p(x)|…
The first histogram.
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use the affix list as a reference to fill in the table below with clues…
Root Word: obscure Suffix: none
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the ohio lottery has a game called pick 4 where a player pays $1 and pi…
| \(X\) | \(P(X)\) | |---|---| | \(-1\) | \(0.9999\) | | \(2100\) | \(0.0001\) |
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c) which of the following is the correct interpretation of the expected…
If you play the Ohio lottery many times, you can expect to win - 0.79 dollars per game. This implies that on average, per game, you will lose 0.79 dollars.
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b) what are your expected winnings? round final answer to 2 decimal pla…
b) The expected winnings are - 0.79 dollars. This means that on average, each time you play the Ohio lottery, you will lose 0.79 dollars. So over many plays, you can expect to win…
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for the computer to grade this one correctly make sure that your x valu…
-0.79
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section 6.1 homework score: 11.28/21 answered: 11/21 question 15 the oh…
| \(X\) | \(P(X)\) | | ---- | ---- | | \(-1\) | \(0.9999\) | | \(2100\) | \(0.0001\) | The expected winnings are \(-0.79\)
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c) if you were to draw a histogram for the number of heads, what shape …
d) Mean number of heads: 1.500, no units (it's a pure number in this context) e) Standard deviation of number of heads: 0.866, no units (it's a pure number in this context)
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un mariscal de campo lanza un pase incompleto. la altura del balón en e…
La solución -0.2 s se puede eliminar porque el tiempo no puede ser un valor negativo.
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f) find the probability of having two or less heads.
\(\frac{7}{8}\)
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which of the following is the correct symbol for the standard deviation…
$\sigma$
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e) find the standard deviation for the number of heads. round final ans…
If \(n = 10\), the standard deviation is approximately \(1.581\), units: number of heads.
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which of the following is the correct interpretation of the mean? selec…
If you flip a coin 3 times over and over, you can expect to get an average of 1.5 heads for every 3 flips
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d) find the mean number of heads. round final answer to 3 decimal place…
0.500, number of heads
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c) if you were to draw a histogram for the number of heads, what shape …
Bell - shaped
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b) write the probability distribution for the number of heads. make sur…
| \(X\) | \(P(X)\) | | ---- | ---- | | \(0\) | \(\frac{1}{8}\) | | \(1\) | \(\frac{3}{8}\) | | \(2\) | \(\frac{3}{8}\) | | \(3\) | \(\frac{1}{8}\) |
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suppose you have an experiment where you flip a coin three times. you t…
a) rv $X$ = the number of heads flipped when you flip a coin three times c) Symmetric d) 1.5
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question 7 of 10 instead of 10 percent, juan plans to pay 20 percent as…
D. A higher down payment means he will have more equity.
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the student council is hosting a drawing to raise money for scholarship…
$-7.89$