Statistik
Datenanalyse, Wahrscheinlichkeitsverteilungen und Hypothesentests.
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question 4 of 10 which of these cannot be an r² - value? a. -0.75 b. 1 …
A. -0.75
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advanced mathematics decision making sem 2 3.4.3 quiz: assessing data m…
$0.929$
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question 2 of 10 a set of data points has a line of best fit of $hat{y}…
D. -1.5
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question 1 of 10 a data set contains three points, and two of the resid…
A. 6
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question 10 of 10 suppose the linear regression line y = 3.009x - 77.13…
C. $750$
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3.3.3 quiz: regression methods what is the equation of the line of best…
\(y = 1.164x+0.885\)
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question 8 of 10 a line of best fit was drawn for 7 data points. what i…
A. 7
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the equation of the regression line for the data in the table is $hat{y…
If we consider \(x = 62\) (Alice's height), the predicted walking speed \(\hat{y}=112.4\) m/min. (You can repeat this process for other height values in the table).
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to find the equation of a regression line, $hat{y}=ax + b$, you need th…
A. - 5.819
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a calculator was used to perform a linear regression on the values in t…
$y=-3.1x + 12.9$
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3.3.3 quiz: regression methods select the correct word or phrase that c…
B. sum of the squared
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question 3 of 10 a data set consists of these points: (2, 4), (4, 7), (…
A. Yes. This is the correct equation.
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suppose the line of best fit is drawn for some data points. if the mean…
A. $(8, - 10)$
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question 1 of 10 to find the equation of a regression line, $hat{y}=ax …
$1.245$
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question 9 of 10 which of these r - values represents the strongest cor…
D. -0.9
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question 8 of 10 which of these is not a possible r - value? a. -0.1 b.…
C. 1.2
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question 7 of 10 what is the r - value of the following data to three d…
\(-0.901\)
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the following boxplot summarizes the heights of a sample of 100 trees g…
D. No, because 43 is not greater than (Q3 + 1.5×IQR)
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at a photography contest, entries are scored on a scale from 1 to 100. …
A. There were 770 entries with a score less than or equal to 68.
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3.23 quiz: correlation. after entering the table values in his calculat…
The correlation coefficient is $r=-0.2984713607$ and the type of correlation is negative correlation.
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what type of correlation does the data set display? | x | y | |----|---…
No correlation
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which of the following graphs shows a positive linear relationship with…
C. Graph C
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question 3 of 10 for which of these does correlation most likely imply …
A. As grade point average increases, the number of scholarship offers increases.
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a statistician at a metal manufacturing plant is sampling the thickness…
E. 24.9 mm
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3.2.3 quiz: correlation which graph best represents the following situa…
A. Graph A
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twin brothers andres and mateo sat across from their best friends keish…
D. It reveals Mateo's lesson about the importance of family connections and memories.
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question 1 of 10 which of these r - values represents the weakest corre…
D. 0.2
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the following list shows the selling prices of 8 houses in a certain to…
B. $283,300$
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a golfer recorded the following scores for each of four rounds of golf:…
D. $\sum(x - \bar{x})^2=(86 - 84)^2+(81 - 84)^2+(87 - 84)^2+(82 - 84)^2$
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davon studied the shiny, black virtual reality headset in his hands. th…
D. It gives background information about Davon's family situation.
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roger claims that the two statistics most likely to change greatly when…
B. No, only the mean is likely to change greatly.
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question 6 of 10 the independent variable of a data set is y, while the…
B. z
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the following histogram shows the ages, in years, of the people who att…
D. The mean is most likely greater than the median because the distribution is skewed to the right.
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question 1 of 10 estimate the line of best fit using two points on the …
$y=-8x + 80$
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bell work: what does the following quote mean? explain in 3 complete se…
The quote means that while the vast universe is full of uncertainties, an individual has the power and certainty to work on and improve themselves. It highlights the importance of…
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an amusement park attraction has a sign that indicates that a person mu…
E. 100%
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when artifacts and structures from a particular time and place are grou…
archaeological culture.
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the following boxplot shows the typical gas mileage, in miles per gallo…
D. 35
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in the data set below, what are the lower quartile, the median, and the…
# Explicación: ## Paso 1: Ordenar los datos (ya están ordenados: 4, 5, 7, 9, 9, 9) Los datos ya están en orden ascendente. ## Paso 2: Calcular el tamaño del conjunto de datos El c…
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the most appropriate measure of center for this data is the median. com…
65
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in the data set below, what is the interquartile range? 16 49 73 53 18 …
# Explicación: ## Paso 1: Ordenar el conjunto de datos $16, 18, 27, 27, 27, 28, 31, 49, 51, 53, 69, 73, 78$ ## Paso 2: Encontrar la mediana (Q2) Como hay 13 valores, la mediana es…
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the most appropriate measure of center for this data is the median. whi…
The median of the data is 65. Since the mean is 66.1 and the median is 65, the mean is greater than the median.
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the most appropriate measure of center for this data is the median. whi…
The mean is greater than the median.
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the most appropriate measure of center for this data is the done mean m…
median
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what is the general shape of the data? skewed symmetric constant many p…
skewed
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in the data set below, what are the lower quartile, the median, and the…
# Explanation: ## Paso 1: Ordenar el conjunto de datos Ordenamos los datos: 3, 3, 3, 4, 4, 6, 6, 8, 8, 8. ## Paso 2: Calcular la mediana El número de datos $n = 10$ (par). La medi…
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when artifacts and structures from a particular time and place are grou…
A. assemblage
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in the data set below, what is the interquartile range? 62 41 62 68 89 …
# Explicación: ## Paso 1: Ordenar los datos Ordenamos el conjunto de datos: $41,62,62,68,89,93$. ## Paso 2: Encontrar la mediana (Q2) Como hay 6 datos (un número par), la mediana …
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in the data set below, what are the lower quartile, the median, and the…
# Explanation: ## Paso 1: Ordenar los datos Ordenamos el conjunto de datos: $4,6,6,8,8,9$. ## Paso 2: Calcular la mediana El número de datos $n = 6$ (par). La mediana es el promed…
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in the data set below, what is the interquartile range? 1 1 1 1 3 3 5 6
# Explicación: ## Paso 1: Ordenar el conjunto de datos (ya está ordenado) 1, 1, 1, 1, 3, 3, 5, 6 ## Paso 2: Encontrar la mediana (Q2) El conjunto tiene 8 datos. La mediana es el p…
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in the data set below, what is the interquartile range? 34 54 54 55 65
# Explicación: ## Paso 1: Ordenar el conjunto de datos 34, 54, 54, 55, 65 (ya está ordenado) ## Paso 2: Encontrar la mediana (Q2) Como hay 5 valores, la mediana es el tercer valor…
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in the data set below, what are the lower quartile, the median, and the…
# Explicación: ## Paso 1: Ordenar el conjunto de datos El conjunto de datos ya está ordenado: 19, 26, 32, 38, 39, 56, 66, 66, 66, 80, 85, 87. ## Paso 2: Calcular el número de dato…
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in the data set below, what is the interquartile range? 58 61 69 78 85 …
# Explicación: ## Paso 1: Ordenar el conjunto de datos El conjunto de datos ya está ordenado: 58, 61, 69, 78, 85, 85, 87, 88, 90, 93, 98. ## Paso 2: Encontrar el primer cuartil ($…
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in the data set below, what is the interquartile range? 1 1 1 1 1 3 3 4…
# Explanation: ## Paso 1: Ordenar el conjunto de datos El conjunto de datos ya está ordenado: 1, 1, 1, 1, 1, 3, 3, 4, 4, 6. ## Paso 2: Encontrar la mediana (Q2) El número de datos…
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27. what does criteria mean? a. standard of judgment for comparing and …
- 27. d. Standard of judgement for evaluating and comparing - 28. a. A reaction to your actions - 29. a. Natural resources; b. Human resources; c. Capital resources - 30. d. All t…
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the graphs shape is best described as skewed complete which of the foll…
The mean is greater than the median.
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the graphs shape is best described as symmetric skewed peaks and valley…
skewed
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which of the following statements is true about a graph that is skewed,…
The mean is greater than the median.
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birthdays a year has 365 days, excluding leap years. use 365 days in a …
$0.0301$
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which of the following statements is true about a graph that is perfect…
The mean is equal to the median.
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birthdays a year has 365 days, excluding leap years. use 365 days in a …
$0.0822$
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passing grade for this test is 70% 1. the texas \move over\ law deals w…
1. c) What to do when an emergency vehicle is on the side of the road 2. c) Both A & B 3. a) Lightly touch the brake 4. c) Dangerous 5. a) Slam on the brakes
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you have 2 coins: one penny and one nickel. consider the probability of…
$0.75$
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multiple choice question when an hr department shows ____, it means tha…
effectiveness
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you have 2 coins: one penny and one nickel. consider the probability of…
0.25
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with the sudden switch to online instruction during the covid - 19 cris…
$0.107$
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part 1 of 2 solve the equation 5 + 5g + 5 = 1 + 4g + 13. a. find the va…
\(g=-\frac{8}{9}\)
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2. why is the economy a social institution?
The economy is a social institution because it is a socially organized system for the production, distribution, and consumption of goods and services, influenced by and influencin…
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gina is taking inventory at the hardware store where she works. she cou…
# Explicación: ## Paso 1: Encontrar el valor máximo El valor máximo de tornillos es 89. ## Paso 2: Encontrar el valor mínimo El valor mínimo de tornillos es 75. ## Paso 3: Calcula…
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the median is calculated by putting the data in order and selecting the…
7
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the median is calculated by putting the data in order and selecting the…
\(2\)
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the median is calculated by putting the data in order and selecting the…
$4$
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students were asked how many pairs of shoes they owned. their responses…
3
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students were asked how many pairs of shoes they owned. their responses…
$4.4$
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the is calculated by putting the data in order and selecting the middle…
1. Median 2. Mode 3. Range 4. Mean
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directions: for the following questions, choose the best answer or resp…
1. B. Momofuku Ando kept trying until he got his ramen recipe right, and kept inventing for his entire life. 2. B. changed. 3. D. Ando's visit to the United States 4. B. "It fille…
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license driving test what does this road sign mean? t - intersection mu…
C. Look Both Ways
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none of the old dreams had been abandoned. the republic of the animals …
D. The reader knows that there is a difference between what is expected and what occurs.
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perry has the following data: 415 t 418 410 412 418 411. if the median …
# Explicación: ## Paso 1: Ordenar los datos conocidos Ordenamos los datos 410, 411, 412, 415, 418, 418. Hay 7 valores en total (un número impar). El valor central (mediana) será e…
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ezra has the following data: 882 888 888 887 m 886 887 888 888 888 888.…
# Explicación: ## Paso 1: Calcular la suma de los números dados Sumando los números conocidos: $882 + 888+888 + 887+886 + 887+888+888+888+888=882 + 888\times6+887\times2 + 886=882…
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squealer called the animals together and told them that he had a terrib…
C. Squealer uses verbal irony because he does not mean that Napoleon is really dying.
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jack has the following data: 76 83 83 86 c 94 89 83. if the range is 18…
94
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identifying irony match each type of irony to its definition. situation…
- situational irony: A character expects one thing to occur, but something else happens. - verbal irony: A character says one thing but means the opposite. - dramatic irony: The a…
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kiara has the following data: 4 b 10 4 12. if the median is 10, which n…
# Explicación: ## Paso1: Ordenar los datos Ordenamos los datos conocidos: 4, 4, 10, 12. Sabemos que el número de datos es 5 (un número impar). Para un conjunto de datos con un núm…
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psychology questions for discovering psychology: sensation and percepti…
1. Without video, cannot answer precisely. Brain may use context, comparison, experience. 2. Process of organizing and interpreting sensory info for meaning. 3. Softest sound hear…
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diana has the following data: 76 s 68 70. if the mean is 71, which numb…
# Explicación: ## Paso 1: Definir la fórmula de la media La media de un conjunto de números $x_1,x_2,\cdots,x_n$ se calcula como $\bar{x}=\frac{\sum_{i = 1}^{n}x_i}{n}$. Aquí, $n …
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data is often displayed using numbers and categories. which types of gr…
bar graphs, pie charts or circle graphs
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for a science experiment, carly counted the number of seeds 5 watermelo…
# Explicación: ## Paso 1: Ordenar los datos Ordenamos los números de semillas: 40, 41, 43, 49, 49. ## Paso 2: Encontrar el valor central Como tenemos 5 valores (un número impar), …
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what is the mode? 9 8 9 8 8
# Explicación: ## Paso 1: Contar frecuencias Contamos cuántas veces aparece cada número. El 8 aparece 3 veces y el 9 aparece 2 veces. ## Paso 2: Identificar el modo El modo es el …
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a companys stock began the day at $37.08 per share. that price drops by…
C. The price per share after 6 hours is $26.40$. For part b:
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what is the median? -53 -57 -54 51 51 -46 53
# Explicación: ## Paso 1: Ordenar los números $-57, -54, -53, -46, 51, 51, 53$ ## Paso 2: Encontrar el valor central Como hay 7 números (un número impar), el valor central es el 4…
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what is the range? 58 71 70 58 45 58
26
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olivia kept a driving log to see how many miles she drove each day. wha…
# Explicación: ## Paso1: Identificar el valor máximo Observando el gráfico, el valor máximo de millas conducidas es 9 (jueves). ## Paso2: Identificar el valor mínimo Observando el…
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a gymnast jotted down the number of cartwheels she did each day. doing …
# Explicación: ## Paso 1: Identificar los datos Los datos son 8 (lunes), 3 (martes), 7 (miércoles), 9 (jueves), 10 (viernes). ## Paso 2: Ordenar los datos Ordenamos los datos de m…
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95. what is the minimum following distance you should always keep betwe…
95. A. 2 seconds 96. C. Fire lane; no parking at any time. 97. D. No passing zone passing.
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a farm equipment company kept a record of the number of tractors made e…
# Explicación: ## Paso 1: Identificar los datos Los datos son el número de tractores fabricados en cada mes: Noviembre - 5, Diciembre - 6, Enero - 6, Febrero - 6, Marzo - 5, Abril…
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which measure is most appropriate to describe the center of the data in…
Median
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the school district compared how many swings each elementary school has…
# Explicación: ## Paso 1: Identificar los valores Los valores son 6, 9, 4, 3, 5, 6, 7, 8. ## Paso 2: Calcular la suma $6 + 9+4 + 3+5 + 6+7 + 8=48$. ## Paso 3: Contar el número de …
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the floyd senior care center kept track of how often its residents got …
6
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what is the median? 6 1 8 1 3 5 7
# Explicación: ## Paso 1: Ordenar los números 1, 1, 3, 5, 6, 7, 8 ## Paso 2: Encontrar el valor central Hay 7 números. El valor central es el 4º número en la lista ordenada. # Res…