Statistiques
Analyse de données, distributions de probabilités et tests d'hypothèses.
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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 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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the box plots show the data distributions for the number of customers w…
4
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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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hannah has a dog and a cat. her dog has 9 spots. her dog has 3 times as…
\(s = 9\div3\) (and the value of \(s\) is 3)
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a national survey asked people, \how often do you eat out for dinner, i…
\( 1.9\% \)
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check here for instructional material to complete this problem. round t…
\(0.426\)
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the scatter plot shows the time spent texting and the time spent exerci…
decrease ### Part (b)
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answer the questions below to determine what kind of function is depict…
This function is \(\boldsymbol{\text{linear}}\) because the difference between consecutive \( f(x) \) values is constant (the rate of change is constant, with a common difference …
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check here for instructional material to complete this problem. find \\…
\( 68 \)
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2. of 800 cars that drove on a street during a week, 0.75% exceeded the…
For the equation \(\frac{x}{800}\cdot\boldsymbol{1}=\frac{\boldsymbol{0.75}}{100}\cdot\boldsymbol{800}\) \(x = \frac{\boldsymbol{0.75\times800}}{100}\) \(x=\boldsymbol{6}\) driver…
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2. a student is choosing two units to study at university: a language a…
\(\frac{1}{5}\)
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6. a standard six - sided die is rolled. 6a list all the even numbers t…
\(\frac{5}{6}\)
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3. from a set of 10 cards numbered 1 to 10, two cards are drawn at rand…
$\frac{4}{45}$
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2. a coin is tossed twice. 2b use the tree diagram to find the probabil…
\(\frac{1}{2}\)
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1. an archer makes two attempts to hit a target, and the probability th…
D. $\frac{9}{16}$
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choose the tape diagram and equation that best represent the situation.…
The correct tape diagram is the top one (with 6 sections each labeled $x+4$, totaling 42), and the matching equation is $\boldsymbol{6(x+4)=42}$.
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find the missing values in the ratio table. then write the equivalent r…
Missing values: $\frac{1}{6}$ (minutes, 2nd column), $6$ (meters, 3rd column), $10$ (meters, 4th column) Equivalent ratios: $8:\frac{1}{3}$, $4:\frac{1}{6}$, $6:\frac{1}{4}$, $10:…
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the scatter plot shows the time spent texting, ( x ), and the time spen…
\(y=-0.83x + 9.67\) (The values may vary slightly depending on the points chosen for approximation, but a reasonable approximation is \(y=-0.83x + 9.67\)) ### Part (b)
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x | 2 | 5 | 6 | 11 | 13 | 18 | 20 y | 171 | 83 | 62 | 41 | 18 | 11 | 3 …
The equation of the model that best fits the data is \(y = 246.084\times(0.821)^{x}\)
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convert to a decimal. \\frac{7}{11} round to the hundredths place
0.64
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convert to a decimal. \\(\\frac{6}{7}\\) round to the thousandths place.
0.857
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9. -/1 points of 200 clock radios with digital tuners and/or cd players…
Question 9: 100 radios Question 10: (a) 210 members (b) 70 members (c) 105 members (d) 140 members
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convert to a decimal. \\frac{4}{7} round to the thousandths place.
0.571
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16. jodi decides to consolidate two leftover cans of paint into one con…
A. \(\frac{5}{9}\) gallon and \(\frac{8}{15}\) gallon, D. \(\frac{3}{5}\) gallon and \(\frac{2}{3}\) gallon, E. \(\frac{5}{8}\) gallon and \(\frac{6}{12}\) gallon
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7. - / 1 points details my notes ask your teacher practice another if (…
1 --- ### Problem 8
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if $n(b) = 13$, $n(a cup b) = 22$, and $n(a cap b) = 6$, find $n(a)$.
15
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let a and b be subsets of a universal set u and suppose n(u) = 300, n(a…
(a) $60$ (b) $180$ (c) $90$
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1. complete the conversion table. hours | minutes 1 2 6 18 20
| Hours | Minutes | |-------|---------| | 1 | 60 | | 2 | 120 | | 6 | 360 | | 18 | 1080 | | 20 | 1200 |
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if $n(a) = 9$, $n(a cup b) = 11$, and $n(b) = 5$, then what is $n(a cap…
3
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lyla made a pizza with 8 pieces. she put pepperoni on \\(\\frac{5}{8}\\…
$\frac{3}{8}$
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bobby and his family took 3 juice boxes and 1 bottle of water to the pa…
\(\frac{3}{4}\) (corresponding to the option with \(\frac{3}{4}\))
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additional practice for exercises 1-4, use the graphs to answer the que…
1. 30 2. 66 3. 80 4. 384
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reinforce understanding you can use equations and ratio reasoning when …
1. 20 2. 6 3. 27 4. 27 5. 60% 6. 18% 7. 20% 8. 5%
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use the circle graph. it shows the types of flowers that are planted in…
5. $\frac{9}{50}$ 6. $\frac{39}{100}$ 7. $\frac{9}{100}$
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the box-and-whisker plot below represents some data set. what is the ra…
90
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molly and omar are decorating same - size bookmarks. molly covers \\(\\…
Molly's bookmark is covered with more glitter because \(\frac{2}{3}>\frac{1}{3}\) (when comparing fractions with the same denominator, the one with the larger numerator is larger).
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students are entitled to first amendment protections, but these protect…
1. Students have a right to free speech even when they are on school property. 4. Schools can regulate student speech if it severely disrupts school functions.
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ii. life in 999: a grim struggle: answer each of the following question…
A writer might use speed to define a historical age to illustrate the pace of technological, social, or cultural change. For example, a period with rapid advancements (e.g., indus…
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4. joe ran 3 miles yesterday and wants to run at least 12 miles this we…
The inequality is \( 3 + 3d \geq 12 \) (where \( d \) is the number of additional days), and the solution is \( d \geq 3 \), meaning Joe must run for at least 3 additional days.
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7) a toy helicopter starts on the ground and rises at a rate of 2 m/s. …
s: a) The completed table is as shown above. b) The graph is a straight line passing through the points \((t,A)\) where \( A = 2t \) for \( t\in[0,10]\). c) The equation is \( A =…
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4. - / 25 points 0/100 submissions used find the range, the standard de…
For dataset {2, 3, 4, 7, 8, 8, 24}: - range: 22 - standard deviation: 7.5 - variance: 55.7 For dataset {10, 11, 13, 15, 31}: - range: 21 - standard deviation: 8.6 - variance: 74.0
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3-1 additional practice leveled practice in 1–2, fill in the boxes to s…
In the proportion \(\frac{x}{60}\cdot\boldsymbol{60}=\frac{\boldsymbol{20}}{100}\cdot\boldsymbol{60}\), \(x = \frac{\boldsymbol{20\times60}}{100}\), and \(x=\boldsymbol{12}\) perc…
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7. - / 12.5 points 0/100 submissions used in a math class, tests are 50…
74.33
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a professor grades students on four tests, a term paper, and a final ex…
85.2
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find the mean, the median, and all modes for the data in the list. if a…
mean: $\frac{430}{39} \approx 11.03$ median: 11 mode(s): 2, 11
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what is the meaning of the if clauses in rudyard kiplings poem \if\? se…
traits a person needs to live life successfully.
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choose the correct answer. how can parallel structure in a poem help cr…
It emphasizes ideas and makes connections within the poem.
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write the improper fraction \\frac{9}{4} \\frac{11}{3} compare the frac…
Improper fractions: $\frac{25}{4}$ and $\frac{20}{3}$ Comparison: $\frac{25}{4} < \frac{20}{3}$ Wait, but let's correct the mixed number: actually, the problem is that the top box…
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10) which of the shapes below is shaded to represent 4/8? a. image of s…
A. (The shape corresponding to option A is shaded to represent 4/8, with 4 out of 8 equal parts shaded.)
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pearl buys a pack of 63 markers. she gives 8 to her teacher and shares …
$5x + 8 = 63$
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pearl buys a pack of 63 markers. she gives 8 to her teacher and shares …
The number of markers that each friend got
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a sauce recipe calls for 8 cups of sunburst tomatoes for every 6 cups o…
# Explanation: ## Step1: Determine the ratio The recipe has a ratio of sunburst tomatoes to cherry tomatoes as \(8:6\), which simplifies to \(\frac{8}{6}=\frac{4}{3}\) (sunburst t…
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pearl buys a pack of 63 markers. she gives 8 to her teacher and shares …
The bottom tape diagram (with total 63, 5 segments labeled $x$, and 1 segment labeled 8) best represents the situation.
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sara had 87 signs to hang up around the school. she gave 13 signs to ea…
Each student got 16 additional signs.
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the following information summarizes some common muslim beliefs about g…
Allah is the same god who spoke to Jewish and Christian prophets.
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solve. 1 roman is having people over to watch football. he has 12 crack…
The greatest number of plates is 4. Each plate will have 3 crackers and 2 slices of cheese. ### Problem 2
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sara had 87 signs to hang up around the school. she gave 13 signs to ea…
The top tape diagram (with three sections of $x+13$ summing to 87)
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the graph shows the relationship between the number of cups of sugar an…
(2, 6)
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analyzing theme development through details and parallel structure in \…
It emphasizes that Triumph and Disaster have the same impact on life, despite how they may seem like strangers.
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7. joel went to dig worms for a fishing trip and caught 5 worms that ea…
$5g$
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how are a words denotation and connotation different? match each term t…
denotation → One meaning of the word vintage is "from the past." connotation → The word vintage conveys a more positive feeling than its synonym old.
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the table of values represents a continuous function. | x | -3 | -1 | 1…
Exponential
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earthquake problem write an exponential function to model earthquake in…
The exponential model is $I(R)=10^R$. The 1811 New Madrid earthquake (Richter 8.1) was approximately 2 times as intense as the 1906 San Francisco earthquake (Richter 7.8). --- ###…
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apply: building towers during indoor recess, jace and his two friends e…
Jace’s tower is Tower B, Carter’s tower is Tower C (since \( 1\frac{1}{2} \times 4 = 6 \)), and Gunner’s tower is Tower A (since \( \frac{3}{4} \times 4 = 3 \)). We know this by r…
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a national survey asked people, \how often do you eat out for dinner, i…
| Response | Relative Frequency | |------------------------|--------------------| | Several times a week | 0.158 | | Once or twice a week | 0.225 | | A few times a month | 0.427 |…
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try again! answer two in a row correctly to continue. select the conjun…
meanwhile
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1. what does the word emit mean in the first paragraph on page 2? a. to…
A. To produce or give off
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stans steakhouse is trying to determine the average amount of time cust…
\(7.5\)
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this month, the tinsville petting zoo is trying to determine how long g…
\(2.5\)
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select the conjunction that best links the ideas below. you can start s…
The correct conjunction to best link the ideas (replacing "otherwise") is "meanwhile" (or "in the meantime") as it shows the two actions (setting up the grill and unwrapping hot d…
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a high school class with 30 seniors, 18 juniors and 12 sophomores is di…
s: 1. Greatest number of groups: 6. Seniors per group: 5, Juniors per group: 3, Sophomores per group: 2. 2. Smallest such numbers: 300 and 450.
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question 4 suspension application experiences noah plays tennis, he run…
1. Noah's total earnings: $25x$ 2. Jatrick's current height: $x + 2$ 3. Number of string pieces: $\frac{x}{2.5}$ 4. Number of student groups: $\frac{x}{2}$
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use the read–draw–write process to solve the problem. 11. oka puts 474 …
There are 79 books in each box.
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3. a recipe used ⅔ gallon of sap to make 6 bottles of syrup. how m used…
1. $\frac{1}{9}$ gallon 2. $\$300$
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convert \\(\\frac{2}{3}\\) to a decimal and a percent.
Decimal: $0.\overline{6}$; Percent: $66.\overline{6}\%$
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for problems 19–23, evaluate. 19. 15% of 60 20. 40% of 30 21. 16% of 50…
19. 9 20. 12 21. 8 22. 14 23. 10
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which steps did the us take during the occupation of japan? check all t…
A. reforming Japan’s government C. taking control of the Japanese islands D. establishing food - distribution networks
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consider a system of two linear equations and two unknowns. part a if b…
The graph will consist of two distinct, parallel straight lines. This is because a system of two linear equations with no solution means the two lines representing the equations n…
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(a) write 7 as a percentage. (b) write 0.31% as a decimal. (a) 7 = % (b…
\(700\) ### Part (b)
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a librarian wants to determine how often local families use the library…
between 4 and 8
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aiden surveyed 300 of the students in his school about their favorite c…
255
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a librarian wants to determine how often local families use the library…
\(5.5\)
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seneca stadium has three different seating sections. the copper level s…
1990
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29% of a universitys freshman class are majoring in economics. if 2668 …
The number of students in the freshman class is 9200.
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(a) write 24.35% as a decimal. (b) write 7.1 as a percentage. (a) 24.35…
\( 0.2435 \) ### Part (b)
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1.5.1 study: word meaning, part 2 which word could best replace combat …
A. fight
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one year, the population of a city was 316,000. several years later it …
2%
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5. aaron surveyed a group of people about the type of jobs they had. he…
For the "Men" row and "No Job" column, the value is 10 (assuming the blue bar for men in "No Job" category has a height corresponding to 10). The completed table (partial, for the…
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four relations are shown below. click on the tabs to see them. relation…
\(\boldsymbol{\square}\) Relation 1 (check the box for Relation 1, as it satisfies the function definition). (Note: If other relations were shown, we would analyze them similarly,…