統計與機率
資料分析、機率分佈、假設檢定與統計方法。
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4. an arcade game involves a player attempting to spin a wheel so that …
a. $\boldsymbol{0.04}$ b. $\boldsymbol{0.3}$ c. $\boldsymbol{0.2}$; There is a 20% probability that the pointer stops within 2.5 inches of the center of the prize space.
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roots market sells 10 peaches for $8. what is the price per peach? root…
$\$0.80$
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middle school students were asked, \do you enjoy playing sports?\ the f…
### Part 1: Complete the Frequency Table To complete the frequency table, we need to find the missing values (6th grade "Yes", 7th grade "Total", 8th grade "Yes", and 8th grade "T…
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interpret the following graph by choosing the correct answer for each p…
A) $100$ B) The dollar amount of each deposit. C) $50$ D) The initial starting balance of the savings account (before any deposits). E) $y = 100x + 50$
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green market sells 2 peaches for $1.50. what is the price per peach? pr…
$\$0.75$
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middle school students were asked, \do you enjoy playing sports?\ the f…
6th grade "Yes": 26 6th grade "No": 22 8th grade "Yes": 30 7th grade total: 49 Filled table: | Grade | Enjoy Playing Sports? | | | |-------------|-----------------------|-------|-…
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3. sometimes machines used to fill soda cans can overfill or underfill.…
a. Bell curve with horizontal axis labeled: 11.99, 12.01, 12.03, 12.05 (peak), 12.07, 12.09, 12.11 b. 0.9938 c. 0.9876 d. 3 (rounded) or 3.1
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central market sells 5 peaches for $5.00. what is the price per peach? …
$\$1.00$
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a stock broker compiled data about 50 popular stocks. he made this freq…
| Change in 2010 \ Change in 2009 | Positive Change | Negative Change | Total | |---------------------------------|-----------------|-----------------|-------| | Positive Change |…
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3. sometimes machines used to fill soda cans can overfill or underfill.…
1. Draw a symmetric bell-shaped curve. 2. Label the horizontal axis as $S$ (Amount of soda in ounces). 3. Mark the center of the axis as $12.05$ (the mean $\mu$). 4. Mark the foll…
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use your double number line to complete the sentence. centimeters: 0, 2…
1 centimeter is equal to $\frac{1}{100}$ meters, and 25 centimeters is equal to $\frac{1}{4}$ meters, 100 centimeters is equal to 1 meter. (The core completed sentence based on th…
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a stock broker compiled data about 25 popular stocks. he made this freq…
| Change in 2009 \ Change in 2010 | Positive Change | Negative Change | Total | | --- | --- | --- | --- | | Positive Change | 16% | 20% | 36% | | Negative Change | 28% | 36% | 64%…
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lupe has to measure the length of objects in meters for her homework, b…
0.25
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the two - way frequency table shows the results of a survey at a school…
The statement is true because 19 girls play sports and 27 boys play sports.
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2. at the george bush intercontinental airport in houston, texas, the s…
a. A horizontal line at $y=\frac{1}{120}$ spanning $x=0$ to $x=120$, with vertical endpoints at (0,0) to (0, 1/120) and (120,0) to (120, 1/120). b. $\frac{3}{8}$ c. $\frac{1}{4}$ …
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the two - way frequency table shows the number of toys sold in one day …
2639 ### For "How many toys were sold in Country A?":
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1. determine whether each of the following describes a discrete random …
a. Continuous random variable b. Discrete random variable c. Neither d. Continuous random variable
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now find how many cups are equivalent to 28 tablespoons of sugar. cups:…
$1\frac{3}{4}$
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the two - way frequency table shows the number of toys sold in one day …
2639
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\well, dad, you wont mind about that once i make partner at the firm. y…
C. The father is deeply disappointed in his daughter's lack of morals.
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select the graphs that show a proportional relationship between x and y.
The left graph (the straight line passing through the origin) shows a proportional relationship between \(x\) and \(y\).
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select the equations that show a proportional relationship between x an…
Only $\boldsymbol{y = 7x}$ represents a proportional relationship between $x$ and $y$. The equation $y=2$ does not represent a proportional relationship.
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construct scatter plots and examine association 1. the table shows the …
A scatter plot with the following points plotted: (6, 34), (2, 12), (7, 52), (8, 66), (6, 32), (6, 30), (21, 98), (5, 28) (Note: When drawn on the provided grid, each point aligns…
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which statements about literary motifs are true? select four responses.…
B. They define key terms C. They help develop themes D. They reveal meaning in the text E. They influence the mood of the work (Note: Assuming the options are labeled as A to F wi…
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54 regular season games. the ratio of the number of games they lost was…
Since there is a possible typo in the problem (total games should be 56 for a whole number of lost games), but if we proceed with the given numbers, the number of lost games is \(…
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a middle school with x students ran a survey to determine the students …
| Activity | Expression | |--|--| | Drama | $\frac{3}{7}x + 30$ | | Soccer | $\frac{2}{7}x-31$ | | Dance | $\frac{3}{7}x + 35$ |
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december review assignment algebra k for each question, you must show w…
Graph (3) ### Question 2
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in the scarlet letter, hester prynne is a puritan woman who is publicly…
B. Hidden sin is less destructive than that which is exposed.
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chapter 2 – exploration & early contact (pp. 52–61) 15. what was the lo…
The Louisiana Purchase was the acquisition of the Louisiana Territory (around 828,000 square miles) by the United States from France in 1803 for approximately $15 million. It was …
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in the week following the data in the table, titanium earned another $1…
Approximately 8.3% (or more precisely 8.29%)
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the graph represents function h(t), which gives the height in inches of…
1. $h(11)=68$ 2. $c=5$ 3. $\frac{20}{3}$ (or approximately 6.67) 4. 6 months after being planted, the bamboo plant has a height of 44 inches.
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in the context of the tragedy of the commons, what does the word \finit…
B. Resources do NOT last forever and we can run out eventually (assuming the options are labeled A, B, C, D with the second option as B)
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4 select the correct answer. read the following excerpt from l. frank b…
B. surprised
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lesson check you know how? the nearest millimeter, a cell phone is 84 m…
$x = 4$
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estimate, and then find the quotient. use your estimate to check for re…
A. $3,588 \div 78 = 46$
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1. why might a writer use the concept of speed to define a particular h…
A writer might use the concept of speed to define a particular historical age to show the rate of technological, social, and economic changes in that era, as these changes' pace c…
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e) 7pts donner le tableau des fréquences (pourcentage avec un chiffre a…
La population est le nombre d'employés absents par jour pendant 40 jours (soit les 40 jours d'observation des absences d'employés). #### b)
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20. mr. johnson shipped a box of math textbooks and novels to a colleag…
A. Variables: $x$ = number of math textbooks, $y$ = number of novels System of equations: $$ \begin{cases} x + y = 18 \\ 2.5x + 1.25y = 31.25 \end{cases} $$ B. $x = 7$, $y = 11$ C…
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estimate, and then find the quotient. use your estimate to check for re…
Best estimate: $\boldsymbol{3600 \div 80 = 45}$ Quotient choice: A. $3,588 \div 78 = \boldsymbol{46}$
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henry hudson 1 choose a good title for this story. a the captain who wo…
1. A. The Captain Who Wouldn't Give Up 2. - Near Russia (in Hudson Bay) - Dutch and English - The North Pole - He refused to turn back when the crew wanted to, endangering them an…
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estimate, and then find the quotient. use your estimate to check for re…
Estimate: $3600 \div 80 = 45$ Exact quotient: A. $3,588 \div 78 = 46$
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click on the boxes of all numbers that are smaller than 0.017 □ 0.0107 …
0.0107, 0.0017, 0.01
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the box plots show the data distributions for the number of customers w…
interquartile range
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a research study was conducted to measure the time students focus on a …
A. The median attention span of college students is greater than the median attention span of high school students, C. The interquartile range of attention spans of college studen…
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if a system of linear equations has one solution, what does this mean a…
B. Intersecting lines
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estimate, and then find the quotient. use your estimate to check for re…
Estimate: 300 B. $7,153 \div 23 = 311$
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6 read this sentence from the text: \the \king holiday\ is a day for ou…
B. to honor
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the box plots show the data distributions for the number of laps two st…
The difference between the ranges of both data sets is 4. (Option D, assuming D is the fourth option: "The difference between the ranges of both data sets is 4.")
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the table shows the daily time, in minutes, maggie spent at swim practi…
Maggie’s daily time at swim practice tends to be greater than her time at band practice. (The correct option is the third one: "Maggie’s daily time at swim practice tends to be gr…
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which of the following describes the characteristics of installation ar…
B. Installation art is either temporary or permanent and is meant to be experienced by the viewer. C. Installation art is located in site-specific, often interior, controlled envi…
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estimate, and then find the quotient. use your estimate to check for re…
Estimate: $240 \div 60 = 4$ Actual quotient: $4$
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the histogram shows the distributions of prices for packs of adult sock…
The best measure of center to compare the prices of kid socks and adult socks is the median (or mean, but median is more appropriate for skewed distributions from histograms). Not…
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two histograms showing the number of pets owned by boys and girls in a …
D. interquartile range (assuming the options are labeled A - D with A: mean, B: median, C: standard deviation, D: interquartile range)
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how does the author’s use of evidence about the effects of air pollutio…
C. In text 1, the author cites statistics about air pollution.
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what is 765 rounded to the nearest hundred?
800
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ii. life in 999: a grim struggle: answer each of the following question…
A writer might use the concept of speed to define a historical age to emphasize the rate of technological, social, or economic change during that time. For instance, a period with…
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the table shows the test scores of students who studied for a test as a…
B. Both distributions are nearly symmetric, so the mean and the standard deviation are the best measures for comparison.
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at ednas boutique, 1/12 of the pants are denim. another 7/12 are khaki.…
$\frac{2}{3}$
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the histogram shows the distributions of essay scores for high school s…
Both distributions are right - skewed.
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while taking inventory at his pastry shop, dirk realizes that he had 3/…
$\frac{1}{4}$
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the box plots show the distributions of the numbers of words per line i…
The median is the best measure because both distributions are left - skewed.
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for a class experiment, richards class weighed a log before and after s…
$\frac{4}{5}$ pounds
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5 multiple choice 4 points what is the slope of the line represented by…
10
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hanson and britney own neighboring cornfields. hanson harvested 3/5 of …
$\frac{1}{5}$ acres
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a spaceship traveled 1/6 of a light - year and stopped at a space stati…
$\frac{1}{3}$ light-years
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while hiking, luna ate 9/10 of a cup of nuts. kendrick ate 3/10 of a cu…
$\frac{3}{5}$ cups
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question jamar is taking a multiple choice test with a total of 40 poin…
Score with 9 questions wrong: 22 Score with \( x \) questions wrong: \( 40 - 2x \) (if the box was for the formula, but as per calculation, for 9 wrong it's 22)
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which statement primarily appeals to pathos to support the position tha…
After switching to a standing desk—like many Americans, I used to spend most of my day sitting—I experienced subtle but meaningful health benefits: I improved my posture and found…
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describe the association in the scatter plot below. the scatter plot sh…
The scatter plot shows positive linear association because as the plotted values of $x$ increase, the values of $y$ generally increase.
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a. complete the table to explore patterns in the exponents when multipl…
# Explanation: ## Step1: Analyze \(10^4 \cdot 10^3\) \(10^4\) means \(10 \cdot 10 \cdot 10 \cdot 10\) and \(10^3\) means \(10 \cdot 10 \cdot 10\). So expanded form is \((10 \cdot …
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question 3 of 21 what is the most likely meaning of the following state…
D. I've missed out on opportunities because of my tardiness.
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describe the association in the scatter plot below. answer attempt 1 ou…
nonlinear
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describe the association in the scatter plot below. answer attempt 2 ou…
decrease
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what kind of circle should we put on 14? open closed (filled) rewatch s…
Closed (filled)
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describe the association in the scatter plot below. answer attempt 1 ou…
negative linear with one outlier
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describe the correlation in the scatter plot below. the scatter plot sh…
negative linear
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j ≥ 57 which direction should we draw the arrow? to the left to the rig…
To the right
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multiple-choice question j ≥ 57 what type of circle do we need at 57? o…
Closed (filled)
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solve the word problem using the percent proportion or percent equation…
1) $\$37.70$ 2) 88 problems 3) $\$4680$ 4) 12 people 5) $\$1920$ 6) $\$18.75$ 7) $71.9\%$ 8) $26.7\%$
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you got it right - just one more to go! the following numbers appear in…
$0.3 = \frac{3}{10}$ $0.75 = \frac{3}{4}$ $0.666666 = \frac{2}{3}$ $0.333333 = \frac{1}{3}$ $0.9 = \frac{9}{10}$ $0.1 = \frac{1}{10}$ $0.4 = \frac{2}{5}$ $0.8 = \frac{4}{5}$
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18. a table of values for a linear function is shown. what is the rate …
2
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converting fractions to decimals the following numbers appear in the wi…
$0.3 = \boldsymbol{\frac{3}{10}}$ $0.333333 = \boldsymbol{\frac{1}{3}}$ $0.2 = \boldsymbol{\frac{1}{5}}$ $0.75 = \boldsymbol{\frac{3}{4}}$ $0.666666 = \boldsymbol{\frac{2}{3}}$ $0…
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look at the word in bold in paragraph 2. 2 pollinators are likely obliv…
not aware
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the scores (shown as big hall session) of students who studied for a te…
B. Both distributions are nearly symmetric, so the mean and the standard deviation are the best measures for comparison
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the histogram shows the distributions of essay scores for high school s…
Both distributions are right - skewed.
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the box plots represent the distributions of typing speeds of students …
The range of the speeds after the course is smaller than the range of the speeds before the course (the option with this statement)
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he has obstructed the administration of justice, by refusing his assent…
B. He uses parallelism to create a strong rhythm and memorable ideas.
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read the sentences from paragraph 6. many people wanted to see the stun…
C. choice
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6. select all of the possible types of numbers that are appropriate inp…
whole numbers, integers, rational numbers, positive integers
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a single - engine plane can travel up to 140 miles per hour. the total …
Appropriate input values for \( h \) are non - negative real numbers (e.g., \( h = 0,1,2,3 \)). The completed table is as above.
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2. if each small square represents $10^2$, then what does the medium re…
The medium rectangle represents \(10^{3}\) and the large square represents \(10^{4}\)
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2. the table of values shown represents a relation. which statement des…
A. The table represents a function because each input has only one output.
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of 200 clock radios with digital tuners and/or cd players sold recently…
120 radios
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in a survey of 350 members of a local sports club, 175 members indicate…
140 members
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convert to a decimal \\frac{3}{11} round to the hundredths place
$0.27$
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estimate the difference using benchmarks. \\(\frac{8}{9} - \frac{4}{11}…
$\boldsymbol{\frac{1}{2}}$
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dana is finding the perimeter of different - sized squares. there is a …
4
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directions: answer each of the following questions. review the previous…
All of these choices are correct. True True False True consumer goods capital goods producer goods
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estimate the difference using benchmarks. \\(\frac{7}{12} - \frac{4}{9}…
0
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estimate the sum using benchmarks. \\(\frac{1}{5} + \frac{3}{8}\\) \\(\…
$\boldsymbol{\frac{1}{2}}$