Statistiques
Analyse de données, distributions de probabilités et tests d'hypothèses.
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how many 3-letter \words\ (including nonsense words) can be formed usin…
60
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20 information processing answer the following questions. the marks obt…
: i. c) 70 ii. b) Mathematics # Explanation: ## Step1: Find Tamil marks The bar for Tamil reaches 70 on the y-axis. ## Step2: Identify highest marks The tallest bar is for Mathema…
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in a spelling bee, 8 finalists compete to win 1st to 3rd place. how man…
336
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a math club has 4 students, and 3 will be chosen to compete in a specif…
24
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a club has 6 members running for president, vice president, and secreta…
120
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academic vocabulary: fiction academic terms can help you read, write, a…
For "omniscient": Predict Meaning - knowing everything; Related Words - omnipotent, omnipresent. For "envision": Predict Meaning - to see in mind; Related Words - vision, visible.…
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work time lost due to accidents at a large company, the director of res…
94 < μ < 100
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which scatter plot shows no association?
The third scatter - plot shows no association.
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a jeweler put these gemstones out on display today. | gemstone | quanti…
\(3:4\)
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the table shows the number of minutes drew spends in each class for eac…
A. The range is \(\{y|y = 90\}\)
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unit 4: probability, random variables, and probability distributions hw…
a) Neither. b) Binomial setting. c) Binomial setting. d) Geometric setting. e) Geometric setting. f) Binomial setting.
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unit 4. probability, random variables, and probability distributions hw…
a) \(P(X = 3)=0.145\) (rounded to three decimal places) b) \(P(X\lt5)=0.731\) (rounded to three decimal places) c) \(P(X\gt4)=0.269\) (rounded to three decimal places) d) \(E(X)\a…
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section 5: stem & leaf plot the data below shows the number of times th…
Median = 29 Lower Quartile = 22 Upper Quartile = 39 Inter-Quartile Range = 17 (Note: For part c, a box and whisker plot would have: minimum=5, Q1=22, median=29, Q3=39, maximum=55.…
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a scatter plot is shown. which of these statements are true for the sca…
- The scatter plot shows a nonlinear association. - The scatter plot shows an outlier. - The scatter plot shows a positive association.
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home rule means that local governments in michigan can run their own co…
write their own charters.
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examine the table with the distances and times recorded for five differ…
C. Train II and V had the same average speed.
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examine the table here with the distances and times recorded for five d…
A. Vehicle A had the slowest average speed, C. Vehicle C had a faster speed than vehicle D
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an element with mass 290 grams decays by 13.2% per minute. how much of …
\(42.0\) grams
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an element with mass 970 grams decays by 15.1% per minute. how much of …
\(105.7\)
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since the bill of rights was ratified, 17 additional amendments have be…
Millions of African American people were enslaved in the southern United States. - Thirteenth Amendment African American people were not allowed to be citizens. Many laws treated …
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art show attendance day\tattendance sunday\t54 monday\t29 tuesday\t22 w…
50
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the ninth amendment and tenth amendment address individual rights and g…
1. The Constitution doesn’t mention education...: Tenth Amendment 2. The Constitution doesn’t specifically say that people have a right to vote...: Ninth Amendment
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maria scored 72, 97, and 82 on her first three math tests. she wants to…
77
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8 from unit 3, lesson 9 here is a data set. -6 3 3 3 3 5 6 6 8 10 what …
Eliminating -6 increases both the mean and the median.
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7 from unit 3, lesson 11 which box plot has an iqr of 10? a b c d
A. The box plot with Q1≈2 and Q3≈12 (topmost plot)
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the quotient property of radicals requires the indices of the radicals …
It is possible. \(\frac{\sqrt[4]{y^{3}}}{\sqrt{y}}=\sqrt[4]{y}\)
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apply what you know 1. how do inflation and investing affect purchasing…
(a) 72 years (b) 24 years (c) 14.4 years (d) ~10.29 years (e) 8 years (f) ~6.55 years (g) ~5.54 years Rates ≥5.5% preserve/promote purchasing power; lower rates do not.
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the table below shows the deliveries for floral world for the week. wha…
16
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6 from unit 3, lesson 12 the dot plots display the height, rounded to t…
a. The means of both data sets are equal (8 feet). The standard deviation of the bottom dot plot is greater than that of the top dot plot. b. A larger standard deviation means the…
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what is the mean of the data set below? 12, 15, 10, 11
12
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a scatter plot was made to show the value of certain cars based on the …
The slope of the line of best fit is \(-1700\), and it means the value of the car decreases by \(\$1700\) per 1 year.
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5 from unit 3, lesson 13 the depth of two lakes is measured at multiple…
Yes, I agree with Noah. The second lake has a higher mean depth, so it is generally deeper.
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read the excerpt from the odyssey. then i sent out two picked men and a…
A. The men sent by Odysseus to investigate the land they had landed upon became forgetful after eating Lotus plants.
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asa received scores of 72, 97, and 82 on her last three math tests. she…
Determine how many total points are needed to have an average of 82.
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what is the mean of the data set? 17, 24, 26, 13 4 13 20 80
20
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4 here are two box plots: (box plot a and box plot b are shown with num…
a. Box plot A b. Box plot B
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the scatter plot shows the number of swings that different people took …
7
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3 the data set and some summary statistics are listed. 11.5 12.3 13.5 1…
a. It does not change the shape of the distribution. b. It increases each measure of center by 5. c. It does not change the measures of variability.
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in 4 games, larry averaged 23 ppg (points per game). how many points do…
Larry needs to score 33 points in the last game.
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2 a. invent two situations that you think would result in distributions…
a. Two situations: Heights of 10-year-old boys in a class and heights of 10-year-old girls in the same school (similar variability due to same age and environment). b. Two situati…
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three students found the mean of the data set given. their work is show…
Naeem's Work is correct.
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determining a missing value 10 11 12 13 14 15 16 17 18 19 20 mean which…
\(-9\)
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a science class collected one of each kind of flower they could find an…
6
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steven received scores of 70, 95, and 80 on his last three math tests. …
Steven needs $320$ total points to have a mean score of $80$. Steven has $245$ points so far. Steven needs to score at least $75$ points on his last test to qualify for the team.
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what was the link between the launch of sputnik 1 and the national defe…
El National Defense Education Act fue creado en respuesta al lanzamiento de Sputnik 1.
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1 twenty students participated in a psychology experiment that measured…
Mean (center) and standard deviation (variability). Reasoning: The dot plots for both situations are roughly symmetric, so mean (uses all data) and standard deviation (measures sp…
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writing about redistributing equally maria has 14 pencils, ted has 9 pe…
Each person should have \(12\) pencils. Maria gives \(2\) pencils (maybe to Ted), Lucinda gives \(1\) pencil (maybe to Ted) so that Ted gets the \(3\) pencils he needs to reach \(…
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redistributing to find the balance point meg has 2 berries, paul has 2 …
There are a total of \(25\) strawberries. There are a total of \(5\) people. The expression to find the mean, or balance point, is \(\frac{25}{5}\). After redistributing, each per…
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you take a 325 milligram dosage of ibuprofen. during each subsequent ho…
(part a model): \( y = 325(0.71)^t \)
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1 twenty students participated in a psychology experiment that measured…
a. Mean (center) and standard deviation (variability) b. Situation B c. Situation B
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read the sentence. the dusk was filled by the coyotes eerie howl. which…
A. The coyote’s eerie howl filled the dusk.
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writing about finding the mean explain how to find the mean of a data s…
Sum all data values, then divide by the number of values.
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calculating totals to find the mean number of tests | score earned | to…
80
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1 twenty students participated in a psychology experiment that measured…
a. Median (center) and IQR (variability); median/IQR are robust to outliers in Situation A, consistent for both. b. Situation A c. Situation B 2a. Example: Heart rates during rest…
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the table shows information about donations made to an animal shelter. …
Multiply each donation amount by the number of people, Add the total amount of money, Add the total number of people, \(2550\div25 = \$102\)
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georges asked five of his friends how long they studied for the last ma…
D. For every hour they studied their grade would go up 9.6 points.
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in a high school league, there were 256 touchdowns made last year. if 6…
A. 4
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which word contains a word root that means believe? credential dictiona…
credential
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practice calculating the mean of a data set. month | money january | $1…
First, find the total amount of money. \(\$720\) Second, find the total number of months. \(6\) The mean, or average, is found by dividing \(720\) by \(6\). The average amount of …
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weights of elephants a sample of 8 adult elephants had an average weigh…
11977 < μ < 12013
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students in the ead to lead\ club read to younger students. the club sp…
\(7\)
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overtime hours worked a random sample of 16 registered nurses in a larg…
41.5 < μ < 43.9
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the table shows janisas scores in an archery tournament qualifying even…
Janisa needs $48$ total points to have a mean score of 8. Janisa has $39$ points so far. Janisa needs to score $9$ points on her last arrow to qualify for the tournament.
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use the t distribution table to find the $t_{\\alpha/2}$ value for an 8…
1.350
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students in the ead to lead\ club read to younger students. the club sp…
Follow the above steps to complete the line - plot.
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lauren always serves homemade cornbread at her familys annual picnic. s…
3
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lauren always serves homemade cornbread at her family’s annual picnic. …
5
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question 8. if ( xy = 8 ), then to the nearest tenth, the value of ( 5l…
15.0
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lauren always serves homemade cornbread at her familys annual picnic. s…
2
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a restaurants average food preparation time was tracked from day to day…
between Thursday and Friday
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at greenville consulting, the head of human resources examined how the …
between 2020 and 2022
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fans of the lakeside baseball team compared the number of games won by …
between 2015 and 2017
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worried about going over his storage limit, roger monitored the number …
between Wednesday and Thursday
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jennifer entered the amount she charged on her credit card each month i…
between May and July
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give an example of how you would create a sample from the population of…
- **Cluster Sampling Example**: Divide the US into state - clusters, randomly select some states, and sample all in those states. - **Stratified Sampling Example**: Divide the US …
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to find how high school students feel about hot lunches, adam walks to …
B. It is likely that student opinions in one particular high school do not accurately represent the opinions of all high school students. C. Students that take the time to complet…
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the judge at a cake contest made note of how much sugar was used in eac…
\(2\)
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the judge at a cake contest made note of how much sugar was used in eac…
\(1 + 2=3\)
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to find how high school students feel about hot lunches, adam walks to …
systematic, voluntary
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which of these methods is most likely to be biased? cluster systematic …
convenience
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redistributing to find the balance point barton has 4 strawberries and …
There are a total of \(12\) strawberries. There are a total of \(2\) people. The expression to find the mean, or balance point, is \(\frac{4 + 8}{2}\). \(Ona\) should give 2 straw…
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to determine customer satisfaction with their service department, an au…
stratified
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a company wants to administer a satisfaction survey to its current cust…
simple random sample
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a survey of 1,565 households estimated that 72% of the households in a …
Population: all the households in given state Sample: 1565 households surveyed
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a company redesigned its website. it wants to collect data to see if it…
sample survey
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to estimate the percentage of defects in a recent manufacturing batch, …
systematic
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the judge at a cake contest made note of how much sugar was used in eac…
Follow the above - step frequency - based placement of X's on the given line - plot.
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each license plate in a certain state has six characters (with repeats …
\(3380000\)
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katy loves to paint and always runs out of purple paint first. she kept…
10 bottles
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for the dinner special at a restaurant, the customer must choose an app…
450
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when ordering the kids lunch at burger universe, the customer must choo…
\(96\)
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katy loves to paint and always runs out of purple paint first. she kept…
\(2\)
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in a poll, students were asked to choose which of six colors was their …
\(1360\)
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finding the mean the national average height for girls in the sixth gra…
The total number of girls is \(14\). The total height of the girls is \(734\) inches. The expression to find the mean is \(\frac{734}{14}\). The average height of the girls in thi…
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the citizens of a city were asked to choose their favorite type of pet.…
33800
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katy loves to paint and always runs out of purple paint first. she kept…
6
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which describes how to calculate the range of this data set? 4, 5, 6, 8…
Subtract \(12-4\).
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what is the range for this set of data? 38, 17, 55, 40 ○ 2 ○ 38 ○ 39 ○ …
38
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163, 97, 184, 199, 169, 175 what numbers represent the lower and upper …
lower quartile: 16[LLM SSE On Failure]
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swati recorded this data set, which contains an outlier. 163, 97, 184, …
lower quartile: \(163\), upper quartile: \(184\) (First option)