統計と確率
データ分析、確率分布、仮説検定、統計手法。
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question 3 of 10 amelia worked for 5 hours and 30 minutes. how should s…
C. 5.5
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question 2 of 10 the graph shown corresponds to someone who makes _____…
B. $15 an hour
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question 24 of 25 what is 7.04 trillion in scientific notation? a. 7.04…
A. \( 7.04 \cdot 10^{12} \)
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question 10 of 10 (diminuendo means the same as) a. andante. b. decresc…
B. decrescendo
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what do george and lennie mean when they say theyll \live off the fatta…
B. (The option text related to the correct interpretation of "live off the fatta the lan'" in the context of George and Lennie's dream in "Of Mice and Men")
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the population of moscow, russia, can be modeled by the function \\( p(…
13760 ### Part (b)
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propaganda is a a memorial, a lasting remembrance, evidence b something…
B. something created to deliberately convince or influence people's thoughts, opinions, and/or actions.
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the above painting is michelangelo buonarrotis, last judgement. he was …
c. understanding of theology and the Bible
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generally, the more money a company spends on advertising, the higher t…
\( S(15)\approx\boldsymbol{32.9} \) This means that if the company spends $1500 on advertising, $ \boldsymbol{32900} is returned in sales.
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turn it down! just for me: survey research a recent study revealed that…
C. Reduced
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a local baseball team is struggling this season, and many fans of the t…
This is voluntary response bias. The result overestimates true support for firing the coach
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a random sample of adults in a large us city responded to a series of q…
Because the sample includes only residents in one US city, the survey may overestimate the proportion of US adults who use public transportation
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residents of a community currently pay a fee for recreational services …
Question wording bias may be present because the question leads those responding toward a certain response.
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4) uninsured motorist insurance coverage protects you when a motorist l…
a) True ### Question 5
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1) the personal injury protection (pip) segment of your policy covers y…
b) False ### Question 2
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4 drag each tile to the correct box. lori’s family is on a road trip. t…
leg E → leg B → leg A → leg C → leg D
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five students, adriana, ben, chandra, diana, and ernesto, would each li…
80%
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dayshawn can choose two of his four t - shirts to take on a weekend tri…
\(S = \{AB, AC, AD, BC, BD, CD\}\) (the third option)
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the password for a website must have 8 characters consisting of letters…
\(\frac{1}{6724520}\) (or approximately \(1.487\times10^{-7}\))
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a spinner has five congruent sections, one each of blue, green, red, or…
If Yuri spins the spinner 600 more times and records results, the experimental probability of spinning orange will get closer to the theoretical probability of spinning orange. Th…
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the total war effort endangered civilians because it did not offer lega…
D. it led enemies to attack towns, cities, and factories to damage the war effort.
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mariah is randomly choosing three books to read from the following: 5 m…
There are \(_{5}C_{3}\) possible ways to choose three mysteries to read. The probability that Mariah will not choose all mysteries can be expressed as \(1-\frac{_{5}C_{3}}{_{20}C_…
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according to the chart below, what percentage of ralphs expenses are it…
a. 65%
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according to the chart below, what percentage of ralph’s expenses are i…
b. 71%
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executive leadership wants to survey employees at a grocery store that …
List all of the employees by their employee ID number. Survey the 11th person on the list (with the number 11 being randomly chosen), then survey every 10th person on the list aft…
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a band director is trying to decide what music to play for the halftime…
Randomly select 2 students from each type of instrument (trumpet, saxophone, clarinet, etc.).
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race organizers want to survey the participating runners on the difficu…
Place the runners into groups based on the seconds part of their finishing time (0:00 - 0:05, 0:06 - 0:10, etc.). Randomly select 2 of these groups, and survey every runner within…
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calculator the value of a certain car, in dollars, x years from its mod…
\( 408.80 \)
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welcome to the game show: \which one is it?\ complete each task t multi…
For the equation \( 6,400 = ? \times 100 \), the answer is 64. For the multiple of 100, 6,400 (and 300, but the boxed one is 6,400).
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multiples of 100 300 one of these numbers is a multiple of 100. which o…
300
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no additional details were added for this assignment. calculator the va…
\( 408.80 \)
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below is a graph of the murphys annual expenses. if the murphys gross a…
\$20,500.80 (which corresponds to the option \$20,500.80)
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a chemical technician measured the temperatures (in °c) of 18 different…
- 95 to 100: \( \boldsymbol{0.22} \) - 101 to 106: \( \boldsymbol{0.17} \) - 107 to 112: \( \boldsymbol{0.28} \) - 113 to 118: \( \boldsymbol{0.33} \)
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six teammates are competing for first, second, and third place in a rac…
120 (corresponding to the option with 120)
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in how many ways can the letters in the word spoon be arranged? 60 120 …
60
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for most of my life, i did not understand what it meant to be a part of…
It adds detail and precision.
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for most of my life, i did not understand what it meant to be a part of…
enthusiasm
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maisie has 12 new books in her library at home. she sets a goal to read…
495
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for most of my life, i did not understand what it meant to be a part of…
adjectival phrase
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eli chooses two shirts from a group of five to pack for a weekend trip.…
If he chooses shirt B, there are four possible outcomes for choosing the second shirt. The combination of AB and BA are the same. Each shirt can be paired with any one of other th…
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lorelei evaluates the expression \\(\\frac{12!}{(12 - 10)!10!}\\) to de…
In step 1, the subtraction cannot be completed before the factorial of each number is calculated. In step 1, \(12!\) divided by \(10!\) is not equivalent to \(6!\) divided by \(5!…
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determining the number of possible groups of elements ten students need…
First question: 252 Second question: 126 (the option with 126)
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1 the scatter plot shows the age and sale price of fifteen used motorcy…
The scatter plot shows a negative association between the age of a motorcycle and the sale price of the motorcycle because as the age of a motorcycle increases, the sale price of …
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solving problems using permutations and combinations three students, an…
The second option (the box with "ABC, ACB, BCA, BAC, CAB, CBA")
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Question was provided via image upload.
12
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example 3×3 = 9 three times three equals nine 1. eight
\(2 \times 4 = 8\) two times four equals eight (o \(4 \times 2 = 8\) four times two equals eight)
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yummy yogurt sells three types of yogurt: nonfat, regular, and super cr…
$$ \begin{bmatrix} 50 & 60 & 10 \\ 20 & 50 & 50 \\ 70 & 110 & 20 \end{bmatrix} $$
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completing a two-way table softball\tno softball\ttotal swim\ta\tb\t22 …
The correct option is: \( a = 15, b = 7, c = 5, d = 10, e = 12 \) (the second option in the list).
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a survey of 80 students found that 24 students both play in a band and …
# Explanation: ## Step1: Find \( b \) In the "In Band" row, total is 48, and "Play Sports" is 24. So \( b = 48 - 24 = 24 \). ## Step2: Find \( f \) Total students are 80, "In Band…
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a survey of 80 students found that 24 students both play in a band and …
d = 10 (not in options, but calculation shows), g = 34, h = 46. But based on the dropdown options, maybe the intended d is 10 (not listed), g is 34
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the table gives ordered pairs $(x, ln y)$. for the function $y = f(x)$,…
C. The function \( f \) is exponential because the values of \( x \) and the values of \( \ln y \) both form arithmetic sequences.
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a survey of 80 students found that 24 students both play in the band an…
# Explanation: ## Step1: Analyze \(a\) "24 students both play in the band and play a sport" means \(a = 24\) (in band and play sport). ## Step2: Analyze \(e\) Total students surve…
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the life expectancy for a human in the united states can be modeled by …
B. Early 2003
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a survey of 80 students found that 24 students both play in the band an…
D. Column: In a Band, Not in a Band; Row: Play a Sport, Do Not Play a Sport
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finding a value in a two-way table two hundred and fifty people were as…
127
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filling in a table last july, 160 babies were born in a hospital in mai…
a=14, b=64, c=76, d=20, e=90 (the fourth option, assuming the last option is this)
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last july, 160 babies were born in a hospital in maine; \\(\\frac{3}{5}…
The Right Graph (the third table from the left, or the rightmost table)
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last july, 160 babies were born in a hospital in maine; \\(\frac{3}{5}\…
C. Column: Less Than 8 Pounds, 8 Pounds or More; Row: Boys, Girls
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misha surveyed students in her school about what writing tool they use.…
\(a = 45\), \(b = 60\), \(c = 58\), \(d = 77\), \(e = 135\)
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complete the two - way table to answer the question about animals at a …
3. 8 cats are at the groomer.
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combining data below are two tables that represent a class of students.…
- There are 35 students in the class. - 19 of the students are boys. - There is not enough information shown to determine how many girls have summer birthdays.
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use a t - test to test the claim about the population mean μ at the giv…
\(0.106\)
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the table represents the temperature of a cup of coffee over time. temp…
exponential, because there is a relatively consistent multiplicative rate of change
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ann deposits $70,000 into an account that pays 2% interest per year, co…
## Interest Ann earns (compounded annually) - First: $1400$ - Second: $1428$ - Third: $1456.56$ ## Interest Jim earns (simple interest) - First: $1400$ - Second: $1400$ - Third: $…
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what is the correlation coefficient for the data shown in the table? th…
-1 (but if we consider the options, maybe there is a typo, and the intended answer is -1, but among the given options, the closest is -4, but that's incorrect. Wait no, maybe I ma…
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the approximate line of best fit for the given data points, y = -2x - 2…
-2 (Option: -2)
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12 2,110 18 1,500 24 870 30 220 she calculates two regression models. w…
D. The exponential model better represents the situation because according to the linear model, the repayment amount will eventually be negative.
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shanti wrote the predicted values for a data set using the line of best…
a = -0.4 and b = 0.15 (the second option)
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lisa deposits $10,000 into an account that pays 4% interest per year, c…
| Year | Interest Lisa earns | Interest Scott earns | Who earns more interest? | |------|---------------------|----------------------|--------------------------| | First | $400$ |…
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which graph has a trend line with the least slope? ○ math scores vs. ho…
Spelling Scores vs. Hours Spent Studying (assuming the left graph is Spelling; or check the graph labels. Alternatively, the correct option is the one with the least slope, which …
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which residual plot shows that the line of best fit is a good model?
The plot (first one described, with points randomly scattered around the residual = 0 line) shows the line of best fit is a good model. (If options were labeled, e.g., if the firs…
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find the residual values, and use the graphing calculator tool to make …
(Residuals): For \( x=1 \): \( 0.14 \); \( x=2 \): \( -0.09 \); \( x=3 \): \( -0.12 \); \( x=4 \): \( -0.05 \); \( x=5 \): \( 0.12 \). For the residual plot question: Yes, the poi…
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consider the table showing the given, predicted, and residual values fo…
(4, -0.6)
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the function f(t) = 349.2(0.98)^t models the relationship between t, th…
300
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melissa collected the data in the table. when x = 4, what is the residu…
-1
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the graph shows the best - fit regression model for a set of data compa…
Each point in the data set is near the regression line.
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georgianna wants to use the linear model associated with the data in th…
0 to 30 minutes (Option: 0 to 30 minutes)
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which graph shows a negative correlation?
The Middle Graph (assuming the second graph is the middle one, but based on the description, the lower graph with \( x \) and \( y \) axes where as \( x \) increases \( y \) decre…
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which graph shows data whose r-value is most likely closest to 1?
The Middle Graph
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x | y 0 | 0 1 | 1 4 | 4 5 | 5 what is the correlation coefficient for t…
1 (the option with "1")
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the chart represents a data sets given values, predicted values (using …
\( g = -2 \) and \( h = 1 \) (the option: \( g = -2 \) and \( h = 1 \))
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ms. sutton recorded the word counts and scores of the top ten essays in…
A. Word count tends to decrease as the score decreases.
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a data set is shown in the table. the line of best fit modeling the dat…
0.88
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the table shows the estimated number of lines of code written by comput…
\( y = 26.9x - 1.3 \)
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the equation below represents the trend line of a scatter plot showing …
on the science test because the y - intercept is greater
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a line of best fit is drawn for the set of points shown on the graph. d…
(30, 38)
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consider the plot created from the residuals of a line of best fit for …
A. Yes, the points have no pattern.
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the rates of change of two data sets can be compared by finding: the in…
B. the slope of each trend line.
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the end of a hose was resting on the ground, pointing up an angle. sal …
3.2 feet
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the table shows the height, in meters, of an object that is dropped as …
According to the line of best fit, the object would have hit the ground 0.6 seconds later than the actual time the object hit the ground.
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find the residual values, and use the graphing calculator tool to make …
Residual values: -2.4, -4.9, -6.2, -6, -7.9. For the residual plot appropriateness: Yes, the points have no pattern. (Option: Yes, the points have no pattern.)
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fiona wrote the predicted and residual values for a data set using the …
1. The data point for \( x = 1 \) is above the line of best fit. 4. The residual value for \( x = 2 \) should be a positive number because the given point is above the line of bes…
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the graph shows the exponential regression model for data representing …
The graph of the regression model can be used to predict the population size for any number of years in the future.
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jace gathered the data in the table. he found the approximate line of b…
\(-0.86\) (corresponding to the option with -0.86)
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four sets of data have the trend lines shown below. data set 1\tdata se…
B. \( y = 9.8x + 6.7 \)
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a residual plot is shown. which statements are true about the residual …
1. The equation for the line of best fit is not a good approximation for the data because the points have a curved pattern. 2. The residual plot has the pattern of a curve.
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if the temperature is 64°f, how many bottles of water should the store …
112
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write 0.0000725 in scientific notation.
\( 7.25 \times 10^{-5} \)
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120 35 184 56 nina graphs the data in the table and writes the rounded …
The trend line is \( y = 0.36x - 10.5 \), which means that the rate of change in height is 0.36 inches per ounce of fertilizer.
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alex used a regression calculator to find the equation of the trend lin…
A. \( s \approx 1.7f + 6.2 \)