Statistiques
Analyse de données, distributions de probabilités et tests d'hypothèses.
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four swimmers, daniela, camille, brennan, and amy, compete on a relay t…
The correct option is not among the given ones. But if we assume there is a mis - typing and we consider the logic of complement, the set of elements in the sample space that are …
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section 5.3 homework score: 0/13 answered: 0/13 question 1 events a and…
$0.36$
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what does repertory mean? the company is professional and approved by t…
- Question 3: The plays offered rotate either daily or weekly - Question 4: Magical elements such as nymphs and an Amazon queen - Question 5: 12 - 20
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use the appropriate formulas and methods to answer the following questi…
Mode = 67.5 Median = 63.5 Mean = 60.56
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paige rolls a number cube sixty - four times. the number 4 comes up fou…
31
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question 10 of 10 which data set has the smallest standard deviation? a…
D. 22, 22, 23, 23, 22, 22, 23
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question 8 of 10 how do you find the range of a data set? a. subtract t…
A. Subtract the smallest value from the largest value
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question 7 of 10 which data set has the largest range? a. 12, 15, 16, 1…
B. 31, 36, 38, 41, 42, 54, 37
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question 6 of 10 what does the standard deviation of a set of data tell…
A. How much each data point differs, on average, from the mean value of the set
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question 1 of 10 a scientist recorded the number of geese found in a pa…
D. 9
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a sample was done, collecting the data below. calculate the standard de…
\(8.4\)
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find the 5 number summary for the data shown x 4.6 6 6.3 9.7 10.3 11.1 …
4.6, 9.7, 12.6, 20.2, 28
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the average price of a domestic airline ticket in a particular region w…
The relative change in airfare from 1991 to 2020 was $-43.5\%$ and the relative change in CPI was $98.8\%$
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the average price of a domestic airline ticket in a particular region w…
The average fare would have been $\$716$. This means the airfares rose less than expected.
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use the appropriate formulas and methods to answer the following questi…
range = 43 stdev $\approx15.48$
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a survey was conducted at a local ballroom dance studio asking students…
a) $9.8\%$ b) $14.8\%$ c) $29.5\%$ d) $21.3\%$ e) $63.9\%$
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you are playing a video game where your character, matt, is fighting an…
A. 0.75 B. 0.67 C. 0.75 D. 0.265 E. 0.0125
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a collection of temperature values has mean 82.25 degrees and standard …
Saturday's temperature was 1.00 standard deviations above the mean.
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a collection of temperature values has mean 82.25 degrees and standard …
Saturday's temperature was 1.00 standard deviations above the mean for this exam.
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the mean of a set of data is 3.14 and its standard deviation is 4.76. f…
A. 2.26
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for the five - number summary given below, identify where the data is b…
D. The data is bunched up the most between 315 and 346. This is because the gap between 315 and 346 is the shortest.
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for the numbers written below, identify where the data is bunched up th…
D. The data is bunched up the most between 315 and 346. This is because the gap between 315 and 346 is the shortest.
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question 9 of 10 why are graphs helpful for displaying data? a. they do…
C. They help you identify patterns in the data.
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for data with a bell - shaped distribution, we are promised (a) (b) of …
(a) C. about (b) E. 99.7%
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the quantitative data set under consideration has roughly a bell - shap…
a. $95$ b. $291$
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a quantitative data set has mean 24 and standard deviation 3. a. what p…
a. 88.89 b. 70
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a jar contains 6 red marbles, numbered 1 to 6, and 11 blue marbles numb…
a) $\frac{1}{11}$ b) $\frac{1}{2}$
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the data set below shows the additional sleep in hours obtained by a sa…
a. $n = 10$ b. $\sum x_{i}=18.2$ c. The sample mean is $1.82$
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a cbs news poll conducted june 10 and 11, 2006, among a nationwide rand…
P(Democrat) = 0.363 P(better) = 0.109 P(better|Democrat) = 0.051 P(Democrat|better) = 0.169 P(Democrat and better) = 0.018
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assume that 12 jurors are randomly selected from a population in which …
\(P(x = 5)=0.0044\) \(P(x\leq5)=0.0052\) yes
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suppose that 49% of people own dogs. if you pick two people at random, …
$0.2401$
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on a 7 - question multiple - choice test, where each question has 3 ans…
$\frac{2186}{2187}$
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an experiment consists of randomly selecting a single digit (from 0 to …
A and B
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in parts (a) and (b), identify whether the events are disjoint, indepen…
a) independent b) neither c) false
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events a and b are mutually exclusive if they can not occur simultaneou…
\(P(A \text{ and } B)=0\)
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question 4 0/2 pts 3 9 details two events are called independent when t…
the outcome of either event does not affect the probability that the other event happens.
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a random variable is defined as a process or variable with a numerical …
D. i and iii
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a group of people were asked if they had run a red light in the last ye…
$0.2994$
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a couple decides to have children until they have one boy and one girl,…
S = {GB, BG, BBG, GGB, BBB, GGG}
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a safe has a 4 - digit lock code that does not include zero as a digit …
The first blank is 9, the second blank is 3024, the third blank is 4, the fourth blank is 24.
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what does the word aroma mean in the passage? (a) taste (b) sound (c) s…
c) Smell
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1 what does the word \palette\ mean in the passage? a) tool for paintin…
# Breve explicación: La palabra "palette" en inglés se refiere comúnmente a un "herramienta para pintar" donde el artista mezcla los pigmentos, o a un "rango de colores". En este …
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section 2, module 2—hard 10 mark for review two data sets, o and p, are…
C. The median of data set O is less than the median of data set P.
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suppose the demand for eggs sold by a convenience store is given by the…
1. $100.000$ 2. $-50.000$ 3. $-2.000$ 4. Elastic
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assume that 30% of city employees in city a ride the bus to work. consi…
When the percentage of city employees who ride the bus to work is 10% higher in City B than in City A, 33% of city employees in City B ride the bus to work. When the percentage of…
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assume that 30% of city employees in city a ride the bus to work. consi…
33
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the main, or central, idea of the passage is baseball players and coach…
It cites examples of potential signals.
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read the passage. do you speak baseball? if you watch a professional ba…
Baseball players and coaches use secret signals to communicate strategy to each other.
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when an apple tree is ready for the world to come and eat, there isn’t …
Prediction or indication of something to come
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what is an effective strategy for enhancing a sense of self? engage in …
Identify values that are meaningful.
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quicktune pty. ltd. decided to keep records on the time (minutes) it ta…
68
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what does forecast mean in line 11? curiosity predict delay desire
B. predict
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the numbers of regular - season wins for 10 football teams in a given s…
$19.6$
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construct a frequency distribution and a relative - frequency histogram…
The class 52 - 56 has the greatest relative frequency (0.375) and the classes 67 - 71 and 72 - 76 have the least relative frequency (approximately 0.042 each).
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what does the underlined word mean in the following sentence? esta cama…
A. waitress
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use the data set listed to find the following values: 6, 10, 4, 16, 8, …
$9.5$
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the ages (in years) of a random sample of shoppers at a gaming store ar…
$3.4$
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the ages (in years) of a random sample of shoppers at a gaming store ar…
$11.8$
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the numbers of regular - season wins for 10 football teams in a given s…
$4.4$
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the numbers of regular - season wins for 10 football teams in a given s…
$20.1$
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question 1 of 10 what did edgar allan poe mean when he said a literary …
D. That all aspects of the piece should work together to create a certain effect
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question 3 of 10 with which statement would walt whitman most likely ag…
D. Death doesn't necessarily mean the end to one's existence.
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the numbers of regular - season wins for 10 football teams in a given s…
Range: $13$ Mean: $8.9$ Variance: $19.09$ Standard deviation: $\approx4.37$
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the scores and their percent of the final grade for a statistics studen…
$92.35$
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find the mean, median, and mode of the data, if possible. if any of the…
A. The mean score is $11.2$
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find the mean, median, and mode of the data, if possible. if any of the…
A. The mean score is $11.0$
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government funding: the following table presents the budget (in million…
Part (a): $\hat{y}=46.5856 + 0.8506x$ Part (b): $0.85$ Part (c): $148.66$
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determine whether the variable is qualitative or quantitative. explain …
The variable is qualitative because types are non - numerical categories.
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carls gymnastics team sold popcorn for their annual fundraiser. the cha…
43; difference between the greatest and least values in the data set.
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match the items. a. imf b. globalization c. nafta d. multinational corp…
1. c. NAFTA 2. a. IMF 3. d. Multinational Corporations 4. b. Globalization
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carlis gymnastics team sold popcorn for their annual fundraiser. the ch…
43
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carls gymnastics team sold popcorn for their annual fundraiser. the cha…
43
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the distribution of the tuitions, fees, and room and board charges of a…
$3011.83$
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directions: select the correct answers. carlis gymnastics team sold pop…
43
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which of the following was the biggest factor in the early and rapid su…
the infectious diseases brought by the Spanish
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in which data set does the range have the greatest measure of spread? a…
C. 54, 26, 62, 47, 98
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which statement about the mean is true? a the mean can be found by divi…
A. The mean can be found by dividing the sum of the data by the number of data points in the set.
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tina recorded daily high temperatures for one week in the table. what i…
C. 72
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which data set has no mode? a 34, 37, 31, 39, 34 b 43, 47, 44, 44, 47 c…
C. 58, 54, 52, 56, 51
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measure of center measure of variation mode range fair share measure of…
| Measure of Center | Measure of Variation | | --- | --- | | mode, median, mean | range, measure of spread |
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a new hospital tracked the number of births during its first 6 months o…
$f(x)=5x^{2}-42x + 174$; $158$
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question 2 0/12 pts 2 details part 1 of 4 for the following problem, yo…
$0.340$
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how many students read between 60 and 70 minutes? type your answer in t…
7
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3a finding meanings choose two phrases to form a sentence that correctl…
1. A mortal wound is one that causes death. 2. A benefactor is someone who helps with gifts of money. 3. An unwitting insult is one that is unintended.
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for the following problem, you will need the formulas below. the mean/e…
Missing probability: 0 Mean ($\mu$): 0.69 Standard deviation ($\sigma$): 0.76 Variance ($Var(x)$): 0.58
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the midpoint in a ranking system, such as for height or weight, is call…
the 50th percentile.
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the distribution of the tuitions, fees, and room and board charges of a…
The sample mean is approximately $\$20824.97$ and the sample standard deviation is approximately $\$3011.87$. The completed frequency - distribution table is: | Class | Mid - poin…
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for the following problem, you will need the formulas below. the mean/e…
$0.123$
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find the 14th percentile, p_{14}, from the following data 3 6 19 27 30 …
27
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find the 54th percentile, p54, from the following data 11.4 11.6 12.2 1…
$30.9$
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read the claim. the government should raise the minimum wage. read the …
However, the Economic Policy Institute shows that raising the minimum wage will expand the economy so that there will be one hundred thousand new jobs.
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which is more affected by extreme observations, the mean or median? and…
A. mean, standard deviation
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in a study, the sample is chosen by selecting a room of the house, and …
Cluster
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value: 1 spending strategies used by the government, which are meant to…
B. Fiscal policy
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im sorry, but youll just have to tell them that you cant do it, his mom…
Be honest, even when it doesn't benefit you.
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read the excerpt from part one of trifles. hale. so i knocked again, an…
He is eager to relay the details of the incident with as much accuracy as possible.
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the state education department requires local school districts to keep …
B. Race or Ethnicity E. Disabilities or Special Needs G. Student Name
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compare the three data sets on the right. (a) which data set has the gr…
(a) Which data set has the greatest sample standard deviation? C. Data set (ii), because it has more entries that are farther away from the mean. Which data set has the least samp…
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compare the three data sets on the right. (a) which data set has the gr…
(a) C. Data set (ii), because it has more entries that are farther away from the mean. (b) B. Data set (iii), because it has more entries that are close to the mean.
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compare the three data sets on the right. (a) which data set has the gr…
C. Data set (ii), because it has more entries that are farther away from the mean.