Statistiques
Analyse de données, distributions de probabilités et tests d'hypothèses.
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the following are the distances (in miles) to the nearest airport for 1…
Five - number summary: Minimum: \(5\) Lower quartile: \(14\) Median: \(23\) Upper quartile: \(39\) Maximum: \(46\) Interquartile range: \(25\)
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it seems these days that students have to work more and more each week …
37.9
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reyesburg corporation is contemplating using a new, more expensive glue…
\( 902.1 \)
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archie is fed up with waiting in line at his local post office, and pla…
\(14.6\)
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select the correct answer. what is the effect of the underlined section…
A. It adds to the soft tone of the poem to describe the gentleness of nature.
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73.) the following table shows music preferences found by a survey of t…
\(\frac{27}{104}\) ### Part b
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question: 1 tik tok analyzes the trend of a new viral dance over time; …
B. 15 months
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a purchasing manager at a university is investigating which brand of lc…
The mean number of hours is approximately 825.82.
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students at a major university in southern california are complaining o…
10.2
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last week, there were 225 student absences at northview high. the table…
\(72\)
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test yourself) practice tool $87.96. staci is attending a music festiva…
3
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there were 1125 books sold last week at sids bookstore. the circle grap…
261
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staci is attending a music festival. the ticket to the festival costs $…
3
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12. higher order thinking hugh uses 0.63 of a piece of canvas to paint …
0.37
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4. 4 pts, class 22 in pitch perfect, the barden bellas are preparing fo…
### Part 4 (Rock, Paper, Scissors Dispute) #### Brief Explanations: In Rock, Paper, Scissors, the rules are: Rock crushes Scissors, Scissors cuts Paper, Paper covers Rock. In the …
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72.) given the number cypher wheel at right: a.) what is the probabilit…
s: a.) Let's assume the correct count of favorable outcomes is, say, 11 (after correct counting), but based on the above, maybe I made a mistake. Wait, let's re-express: But for t…
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1. a table of values that represents a function is shown. | x | y | | -…
- End Behavior Description: decrease - x - intercept: \( -3 \) - y - intercept: \( -6 \) - Slope: \( -2 \)
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a bucket is being filled with water. the graph below shows the water he…
s: (a) The slope of the line is \(\boldsymbol{5}\). (b) The height of the water increases by \(\boldsymbol{5}\) mm for each second the water is running.
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in a recent election, there were six candidates and 5100 total votes. t…
\(28.8\)
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11. jaclynn had 84 cents. her brother gave her another 61 cents. write …
1.45 dollars (or $1.45$)
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test yourself! practice tool at a candy store, erika bought 3 kilograms…
Red hots: \(\$4\) per kilogram Gummy bears: \(\$9\) per kilogram
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in a survey, 19 people reported the number of hours they spent on the i…
- 0 to 3: $\boldsymbol{\approx 0.16}$ - 4 to 7: $\boldsymbol{\approx 0.05}$ - 8 to 11: $\boldsymbol{\approx 0.37}$ - 12 to 15: $\boldsymbol{\approx 0.21}$ - 16 to 19: $\boldsymbol…
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72.) given the number cypher wheel at right: a.) what is the probabilit…
$\frac{11}{26}$ ### Part 72b
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select the correct answer. in this line from walt whitmans poem \song o…
E. heights
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select the correct answer. what is the meaning of the underlined word? …
B. contemptible
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there are 18 students in a certain painting class. their ages are shown…
18 to 22: 0.28 23 to 27: 0.17 28 to 32: 0.44 33 to 37: 0.11
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which of the following categories of asian americans in the united stat…
d. Asian Indian Americans ### Second Question (Theory on government and racial/ethnic relations)
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6. teams in the national football league are divided into two conferenc…
### AFC: - Mean: \(14.2\) - Median: \(13\) - Mode: \(3, 4, 13, 14, 17, 19\) - Range: \(45\) - Standard Deviation: \(\approx 9.43\) - Five - Number Summary: Min \(3\), Q1 \(4\), Me…
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*17. if \\(\\frac{3}{8}\\) of the group voted yes and \\(\\frac{3}{8}\\…
$\frac{1}{4}$ ### Question 19
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select the correct text in the passage. which phrase in this excerpt fr…
the character of a civilian who was at heart a soldier
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a chemical technician measured the temperatures (in °c) of 13 different…
- 93 to 96: 0.23 - 97 to 100: 0.23 - 101 to 104: 0.38 - 105 to 108: 0.08 - 109 to 112: 0.08
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3. you are at the department of motor vehicles waiting to get your driv…
Mean: \( 7.2 \), Median: \( 7 \), Mode: \( 8 \), Range: \( 12 \), Standard Deviation: \( \approx3.77 \) ### Problem 4
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8. on tuesday, pierce ran (\frac{3}{4}) mile and walked (\frac{3}{4}) m…
Pierce ran and walked $\frac{1}{4}$ mile farther on Wednesday than on Tuesday.
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2. the data set gives the numbers of homeruns for the 10 batters who hi…
(Filling the table): | Mean | Median | Mode | Range | Standard Deviation | |------|--------|------|-------|--------------------| | 44 | 44 | 40 | 12 | ≈3.82 (or 4.03 if sample) | …
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51. every 2 seconds, a ballon rises 1 meter. using the equation y = 2x,…
To draw the graph of \( y = 2x \): 1. Plot the point \((0,0)\) (when time \( x = 0\) seconds, height \( y = 0\) meters). 2. Plot the point \((1,2)\) (when \( x = 1\) second, \( y=…
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*16. a foot-long ribbon can be cut into how many \\(1\\frac{1}{2}\\)-in…
8 ### Problem 18
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1. languish (v) 2. discreet (adj.) 3. adversary (n) 4. solemnity (n) 5.…
The subfield is Linguistics (under Arts).
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10. statistics two car manufacturers in the south bay, honda and toyota…
\( H(m) = 1500 - 150m \) ### Part c: Toyota's Employee Equation
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11. you want to buy a bicycle with your friend. you have $43.50 saved a…
Simplified expression is \( 68 + 16w \). It means total initial savings (\$68) plus total weekly savings (\$16 per week) after \( w \) weeks. ### Part B
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select the correct answer. what does the prefix paleo- mean? a. false b…
C. ancient
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directions: a. for each of the following problems find the mean, median…
### Part a: - Mean: \(\approx60.7\) - Median: \(60\) - Mode: \(60\) - Range: \(45\) - Standard Deviation: \(\approx15.1\) ### Part b (Box - and - Whisker Plot Values): - Min: \(35…
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10. you answer 21 out of 25 questions correctly on a test. do you reach…
Yes, because the percentage of correct answers is $84\%$ which is greater than $80\%$.
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8. on tuesday, pierce ran \\(\\frac{3}{4}\\) mile and walked \\(\\frac{…
The difference in the total distance (run + walk) between Wednesday and Tuesday is $\frac{1}{4}$ mile. The steps are: 1. Calculate total on Tuesday: $\frac{3}{4}+\frac{3}{4}=\frac…
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2, 6, 10, x, 1, 9, 5? the median of the seven given numbers is 6. which…
D) 6
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in a survey, 18 people reported the number of hours they spent on the i…
1 to 5: 0.33 6 to 10: 0.28 11 to 15: 0.22 16 to 20: 0.17 (Note: If the problem expects filling the table, these are the relative frequencies rounded to the nearest hundredth.)
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topic: examining data distributions in a box-and-whisker plot. 9. make …
s: 10a. 50% of the data. 10b. 25% of the data. 11. Most students performed well (a large proportion of scores are 80 and above, with many high scores like 96 and 100), and only a …
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2, 6, 10, x, 1, 9, 5? the median of the seven given numbers is 6. which…
D. 6
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2. which number is greater? $\frac{37}{50}$, 37% answer: 4. which numbe…
\(\frac{37}{50}\) is greater. ### Question 4
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last year over 10,000 students took an entrance exam at a certain state…
(a): About 41% of the students who took the exam scored higher than Melissa. ### Part (b)
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section 3: functions and statistics 29. which equation could represent …
A. \(y = x^{2}+3x - 28\)
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which statements describe characteristics of a nonrestrictive clause? s…
A. It is set off by commas, B. It contains a subject and a verb, E. It adds nonessential information to the sentence
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round 0.3058 to the nearest hundredth. answer attempt 1 out of 2
\(0.31\)
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13. write each mixed number as a percent and decimal a. $1\\frac{3}{5} …
a. \(1\frac{3}{5}=\boldsymbol{160\%}=\boldsymbol{1.6}\) b. \(2\frac{4}{25}=\boldsymbol{216\%}=\boldsymbol{2.16}\)
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aiden’s test scores for the same term were 30, 70, 90, 90, 91, and 99. …
### First Part (Aiden's Preference) Aiden would want his teacher to base his grade on the **median** (or mode) because the mean is lowered by the outlier (30), while median (90) a…
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2. the ratio of pounds to kilograms is 1:2.2. use this fact to complete…
If we follow the ratio given (pounds:kilograms = 1:2.2), then 4 pounds is equal to \(4\times2.2 = 8.8\) kilograms. So the answer is \(8.8\) (assuming the problem is to find kilogr…
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1 the ratio of miles to kilometers is 1:1.6. use this fact to complete …
The number of kilometers equivalent to 5 miles is 8.
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8. you are training for a triathlon. the miles that you ride your bicyc…
- Mean: \(\approx 18.86\) - Median: \(19\) - Mode: \(20\) - Range: \(6\) - Standard Deviation: \(\approx 1.88\)
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round 243 to the nearest ten.
240
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10. order the numbers from least to greatest. \\(\\frac{11}{500}\\), 21…
$\boldsymbol{\frac{11}{500}, 21\%, 0.211, \frac{11}{50}}$ ### Question 12a:
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last year over 7000 students took an entrance exam at a certain state u…
### Part (a) # Explanation: ## Step 1: Recall Percentile and Median The median is the 50th percentile (middle value of ordered data). Lucy is at 91st percentile (91% scores ≤ her …
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which statements describe characteristics of a restrictive clause? sele…
- It contains a subject and a verb. - It is not set apart by punctuation. - It is essential to the meaning of the sentence.
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round 2,149 to the nearest hundred.
2100
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4. complete the equivalent forms of the ratio. using hundredths in word…
A possible data set is \(\{4, 4, 4, 4, 5, 5, 6, 7, 8, 9, 10, 15\}\) (Note: There are other valid data sets as well, as long as they meet the range, mode, and right - tailed criter…
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what is the best definition of an appositive? ○ a nonrestrictive phrase…
C. a noun or noun phrase that modifies a noun (assuming the options are labeled A, B, C, D with C being the third option as per the order here)
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if $10,000 is invested at an interest rate of 3.5% each year, what is t…
B. $y = 10000(1.035)^t$, $112,722.79$
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another measure of dispersion is standard deviation, which describes th…
### Problem 6: - Office A (standard deviation) \(=\boldsymbol{\approx1.414}\) (example value, use actual data) - Office B (standard deviation) \(=\boldsymbol{\approx2.828}\) (exam…
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use the scenario to answer the question. round all calculations to the …
Each cup of lemonade costs \(\$1.50\)
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government agencies keep data about the income distribution of the popu…
(a): About 84% of the families in their county earn less than the Nelson family. ### Part (b)
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read this paragraph from chapter 5 of the prince. whenever those states…
B. There are three ways for a prince to hold a newly acquired state that is accustomed to freedom: ruin it, live there, or create an oligarchy that is loyal to him—and the third w…
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1. which number is greater? 20%, 0.02 answer: 3. which number is greate…
20% ### Problem 3:
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10. which description best represents the graph shown? a people are wai…
D. People are waiting for a train. A train comes and some people get on the train. The other people wait for the next train. Another train arrives and all of the remaining people …
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= \\frac{4.5 \\cdot 10^9}{15 \\cdot 10^7} = \\frac{450 \\cdot 10^7}{15 …
30
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the distance from neptune to the sun is 4.5·10⁹ km. the distance from e…
30
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15. find the earnings for giving a haircut and a shampoo to m men and w…
The total earnings for giving a haircut and a shampoo to \( m \) men and \( w \) women is \( \boldsymbol{22m + 57w} \) dollars (justification: calculated per - person earnings and…
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travel caroline is taking a road trip on i-70 in kansas. she stops for …
273.75 (or 274 if rounding to the nearest whole number)
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6. if the increase of the value of a rare collectible over time can be …
The original value of the collectible has to be \(\$4186.66\) for it to be worth \(\$15000\) after 7 years. (So the correct option is the one with \(\$4186.66\), e.g., if the opti…
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real numbers converting between temperatures in fahrenheit and celsius …
\( 107.6 \)
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consider that $15(1.055)^x$ shows the balance in a savings account over…
B. The savings account earns an annual rate of interest of 5.5%.
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a person runs 3 miles in 40 min. what is the speed in mph? \\(\\frac{1}…
The value of $x$ is $4.5$ (and the speed is $4.5$ mph).
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write an equation that models the sequence 200, 500, 1250, ... a y = 12…
C. \(y = 80(2.5)^x\)
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13. higher order thinking write a verbal description of how these two v…
For Part A: Plot points at (0,0), (1, a), (2, 2a), (3, 3a), (4, 4a) (where \(a\) is the number of runs per inning for the first 4 innings), then a horizontal line from \(x = 4\) t…
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read this paragraph from chapter 5 of the prince whenever those states …
D. One way to hold a newly acquired state accustomed to freedom is to establish a friendly government.
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there is a spinner with 13 equal areas, numbered 1 through 13. if the s…
\(\frac{1}{13}\)
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the temperature of a cup of coffee cools down based on the equation t(t…
For the time 1:00 (1 minute), the temperature is \( T(1) = 90 \times 0.85 = 76.5 \) degrees, so 1 degree is **Not Possible**. For 0.58 degrees (after ~30 minutes), it is close to …
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there is a spinner with 12 equal areas, numbered 1 through 12. if the s…
$\frac{1}{12}$
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in a class of students, the following data table summarizes how many st…
\(\frac{9}{13}\)
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2.25 is 50% of what?
\( 4.5 \)
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in a class of students, the following data table summarizes how many st…
\(\frac{3}{5}\) (or 0.6)
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15. fifty-four percent of the students in your class have moved at leas…
0.54 ### Question 17a
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in a certain algebra 2 class of 26 students, 10 of them play basketball…
\(\frac{6}{13}\)
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in a certain algebra 2 class of 30 students, 7 of them play basketball …
\(\frac{1}{2}\)
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in a certain algebra 2 class of 23 students, 9 of them play basketball …
\(\frac{7}{23}\)
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14. a baseball team scores the same number of runs in each of the first…
The graph consists of two parts: a linear segment with a positive slope from \((0,0)\) to \((4, y_4)\) (where \(y_4\) is the total runs after 4 innings, e.g., \(y_4 = 4\) if 1 run…
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for a certain class, the following data table compares how many student…
\(\frac{17}{25}\)
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for a certain class, the following data table compares how many student…
$\frac{3}{22}$
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(\frac{x}{18} = \frac{0.25}{1})
$x = 4.5$
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determine which of the following exponential formula(s) represents expo…
c. d (30(0.85)^t)
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13. higher order thinking write a verbal description of how these two v…
Verbal Description: "At a concert, from 0 to 2 hours, people arrive at a rate of 250 people per hour (so total people goes from 0 to 500). From 2 to 4 hours, a larger group arrive…
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the distance from neptune to the sun is $4.5 \\cdot 10^9$ km. the dista…
\(4.5 \cdot 10^2\) (o 450, pero según la descomposición en la imagen, es \(4.5 \cdot 10^2\))
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this graph shows the populations of baltimore and cleveland in the 20th…
\(B(1930)\approx800000\). It means the population of Baltimore in 1930 was about 800,000. ### Part (b) (i)