Statistiques
Analyse de données, distributions de probabilités et tests d'hypothèses.
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5. there was \\(\\frac{6}{24}\\) inches of rain last night and another …
\(\frac{3}{4}\) (the option with \(\frac{3}{4}\))
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4. subtract: \\(\frac{1}{2} - \frac{3}{10}\\). options: \\(\frac{1}{4}\…
$\frac{1}{5}$ (corresponding to the first option: $\frac{1}{5}$)
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3. add \\(\\frac{9}{16} + \\frac{5}{12}\\). \\(\\frac{47}{48}\\) \\(\\f…
\(\frac{47}{48}\) (corresponding to the first option among the choices, likely labeled with \(\frac{47}{48}\))
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the ratio of rock songs to country songs on tony’s spotify playlist is …
First box: \(11\) Second box: \(110\) Third box: \(50\)
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1. today a student completed \\(\frac{13}{24}\\) more homework than yes…
$\frac{7}{8}$ (corresponding to the first option, likely labeled as A. $\frac{7}{8}$ if following the option labels, but based on the calculation, the answer is $\frac{7}{8}$)
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direct supervision means actively watching and directing children’s act…
A. Responding to the needs of each child
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failure to report suspected child maltreatment is which type of crime? …
A. Misdemeanor ### Second Question (Which of the following is a common symptom of shock?):
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a teacher put all her students quiz scores up on the representation bel…
2
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question 8 (mc) (essay worth 10 points) the aquarium has 3 more yellow …
The number of green fish in the aquarium is 6.
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consider the following three systems of linear equations. system a \\be…
(a) The transformation is \( 3\times \text{Equation [A2]}+\text{Equation [A1]} ightarrow\text{Equation [B1]} \), so the blank is \( 3 \) (b) The transformation is \( -\frac{1}{7}\…
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depth of 0.4 0.3 0.2 0.1 0.25 0.5 0.75 1 1.25 1.5 1.75 2 2.25 2.5 hours…
The depth of the water in the bucket increases 1 inch every 4 hours.
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a car has four wheels. how many wheels are there for 18 cars? | cars | …
In the cars column (the last empty cell), we put 18, and in the wheels column (the last empty cell), we put 72. So the filled table cells are 18 (cars) and 72 (wheels).
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elevation (feet above sea level) 12,000 11,000 10,000 9,000 8,000 7,000…
Larry gets on the train at an altitude of 12000 feet. (For the second blank, we can calculate the rate: from (0,12000) to (60, 5500) is not right, wait, looking at the graph, when…
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camden is trying to solve the following problem with a ratio table. fil…
For the "cars" column: 10; For the "wheels" column: 40
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david is trying to solve the following problem with a ratio table. fill…
12
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complete the statement that describes the situation. mikes manufacturin…
Mike's Manufacturing Co. spent \(\$2000\) to design the backpack. After this initial cost, it will cost \(\$10\) to make each backpack.
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distance remai 4 3 2 1 4 8 12 16 20 24 28 32 36 40 time spent running (…
When Justine started the race, she was 10 kilometers from the finish line.
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the scatter plot shows the number of years of experience, x, and the am…
(a) An approximate equation of the line of best fit is \(y = 0.8x+4\) (answers may vary slightly depending on the points chosen for the line of best fit). (b) The predicted amount…
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what does the y-intercept of the line tell you about the situation? nic…
When he starts practicing, Nick kicks the ball 5 yards from the goal line.
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balloons 400 300 200 100 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 minutes since no…
The balloon's altitude increases 150 feet every minute.
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the scatter plot shows the time spent studying, x, and the quiz score, …
(Part a): \( y = 0.75x + 20 \) (or similar, but this is a reasonable estimate)
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tread 0.2 0.15 0.1 0.05 1,000 2,000 3,000 4,000 5,000 6,000 7,000 8,000…
When Ed buys the tires, the tread depth is 0.3 inches.
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15 proportional relationships– writing equations the table shows how mu…
C. \( c = 0.09p \)
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14 determine if the following table of ratios is proportional. if so, s…
Proportional? Yes Constant of Variation: 3
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question a new car is purchased for 16500 dollars. the value of the car…
The value of the car after 5 years will be approximately $\$12480.60$.
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a new car is purchased for 16500 dollars. the value of the car deprecia…
The value of the car after 5 years will be approximately $\$12411.30$.
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11 john and kamira are playing a game together. johns score (j) and kam…
B. The sum of John's score and Kamira's score
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a town has a population of 12000 and grows at 5% every year. what will …
21550
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the following data represent the number (in millions) of visitors who t…
To draw the box - plot: - Minimum: \(1.6\) - \(Q_1\): \(2\) - Median (\(Q_2\)): \(3.25\) - \(Q_3\): \(4.5\) - Maximum: \(4.9\) The box is drawn between \(x = 2\) and \(x = 4.5\), …
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1 a piece of tape measuring 100 cm is divided into tape a measuring 40 …
1(1) $40:60=2:3$ 1(2) $40:100=2:5$, value=0.4 1(3) $60:100=3:5$, value=0.6 1(4) $2/5:3/5$ 2(1) $5:3$ 2(2) $25:40=5:8$, value=0.625 2(3) $15:40=3:8$, value=0.375 2(4) $5/8:3/8$
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the following data represent the number (in millions) of visitors who t…
To draw the boxplot: - The left whisker starts at \(0.7\) (min) and ends at \(Q1 = 1.5\). - The box starts at \(Q1 = 1.5\), has a line at median \(2.75\), and ends at \(Q3 = 3.8\)…
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the data shows a sample of states percentage of public high school grad…
To draw the boxplot: - The minimum value (left whisker end) is at 65. - The first quartile (Q1, left box edge) is at 75. - The median (Q2, line inside box) is at 84.5. - The third…
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the s.m.a.r.t. in \s.m.a.r.t. objectives\ means specific, measurable, a…
True
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the following data represent the number (in millions) of visitors who t…
To draw the boxplot, we use the five - number summary: Minimum = \(0.7\), \(Q_1 = 1.5\), Median = \(2.5\), \(Q_3 = 3.5\), Maximum = \(4.4\). The box spans from \(Q_1 = 1.5\) to \(…
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the data shows a sample of states percentage of public high school grad…
To draw the boxplot, we use the values: Minimum = 74, Q1 = 77, Median = 79.5, Q3 = 86.5, Maximum = 95. The box is between 77 and 86.5, the median line is at 79.5, and the whiskers…
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the data shows a sample of states percentage of public high school grad…
To draw the boxplot: - Minimum: \( 66 \) - Q1: \( 75 \) - Median (Q2): \( 85 \) - Q3: \( 87.5 \) - Maximum: \( 90 \) The box is between \( 75 \) and \( 87.5 \), with a line at \( …
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a company orders 23 boxed lunches from a deli for $201.25. assume each …
$c = 8.75b$
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keisha rents a scooter to get to the beach. the rental company charges …
Keisha’s rental costs $\boldsymbol{2}$ per mile. Donovan’s rental costs $\boldsymbol{1}$ per mile. The rate of change of Keisha’s function is $\boldsymbol{\text{greater than}}$ th…
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naomi practices the piano 770 minutes in 2 weeks. if t represents the t…
\( t = 55d \)
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use quadratic regression to find the equation for the parabola going th…
The quadratic equation is \(y=-2x^2-15x + 17\), so the coefficient of \(x^2\) is \(-2\).
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bobs gift shop sold 550 cards for mothers day. one salesman, anand, sol…
22
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question 4 of 10 direct supervision means actively watching children, i…
True
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all students in ridgewood junior high school either got their lunch in …
The total number of students in Ridgewood Junior High School is 1950.
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400 students attend ridgewood junior high school. 25% of students bring…
100
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7. \\begin{cases} x - y = 1 \\\\ y = 5 \\end{cases} 8. \\begin{cases} y…
The two lines intersect at exactly one point. ### 2)
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answer the following 1. a car traveled 150 km in 3 hours. what is the s…
1. \(50\) km/h 2. \(5\) m/s 3. \(40\) km/h north 4a. \(40\) km 4b. \(0\) km 4c. \(20\) km/h
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levi read 2 books in 12 months. fill out a table of equivalent ratios a…
For the first blank (months when books = 1): 6 For the second blank (books when months = 42): 7
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use the given data set to complete parts (a) through (c) below. (use α=…
A. The scatterplot reveals a perfect straight - line pattern, except for the presence of one outlier.
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47 multiple choice 1 point economists refer to this pattern, the ______…
B. law of diminishing marginal utility ### Question 48
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a pump fills a pool at a constant rate. every minute, the pool is fille…
A (the graph labeled A)
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yasmin drove 228 miles in 6 hours. if she continued at the same rate, h…
10 hours
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check the following data set for outliers. if there is more than one an…
\(110\)
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paula and nancy race at track practice. paula records her time in a tab…
The rate of change for Paula is greater than the rate of change for Nancy. That means Paula runs at a faster speed.
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a sample of 10 students were asked how many minutes they spent reading …
29
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paula and nancy race at track practice. paula records her time in a tab…
6
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initial value for paulas function: 0 initial value for nancys function:…
7
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paula and nancy race at track practice. paula records her time in a tab…
The initial value is \(10\). It means that Nancy is \(10\) yards from the starting line at time \(x = 0\) seconds.
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next, add the values in the numerator to find the sum of the distances …
70
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paula and nancy race at track practice. paula records her time in a tab…
The initial value is \(0\). It represents Paula's starting distance (she starts at the starting - line).
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youre trying to find the mean absolute deviation for this sample. start…
For each game (from left to right after the first filled 1): 16, 5, 7, 5, 13, 1, 7, 5, 4
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the equation and graph show the distance traveled by a convertible and …
The rate of change of the limousine is \(less\) than the rate of change of the convertible. The convertible is \(faster\) than the limousine.
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two water tanks are leaking water. the equation and the table each repr…
Tank A leaks faster than tank B.
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paracord (feet) 70 60 50 40 30 20 10 1 2 3 4 5 6 7 8 9 10 bracelets x w…
120 (assuming the style with the red line, and rate 8 feet per bracelet)
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two water tanks are leaking water. the equation and the table each repr…
The amount of water in tank B decreases by \(10\) gallons per minute. The rate of change for tank B is \(-10\).
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select the correct answer. read the following sentence from the passage…
D. to be annoyed
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paracord (feet) bracelets which style requires less paracord per bracel…
fishtail
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two water tanks are leaking water. the equation and the table each repr…
The amount of water in tank A is decreasing by \(11\) gallons per minute. The rate of change for tank A is \(- 11\).
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select the correct answer. read the excerpt from the passage. (7) sudde…
B. Della has realized what she must give up for Jim.
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two water tanks are leaking water. the equation and the table each repr…
Tank B holds more water than tank A before the tanks start to leak.
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two water tanks are leaking water. the equation and the table each repr…
\(985\)
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two water tanks are leaking water. the equation and the table each repr…
900
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does ling use less gray wax or red wax in each candle? gray wax \t\t\tr…
First question: gray wax Second question: 500 ounces (Note: The first part's answer depends on the gray wax rate, which is typically lower than red's 6 oz per candle in such probl…
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15 multiple choice 1 point the fact that a consumer is not required to …
D. are two stark realities any business firm must recognize. ### Question 16
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juanita is on the basketball team and played in 30 games last month. a …
12, 16, 5, 2, 5, 13, 1, 7, 5, 4 (in order corresponding to the points 29, 1, 22, 19, 12, 4, 16, 24, 22, 21)
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janelle and xavier are training for a marathon. the equation and graph …
\(9\)
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juice boxes 1,800 1,500 1,200 900 600 300 1 2 3 4 5 6 7 8 9 10 time (mi…
7500 (Wait, no, maybe the correct rate is 250. Let's see, the graph: at x=6, y=1500, so 1500/6=250. Then 250*30=7500. Or maybe 300*30=9000. But the intended answer is likely 7500 …
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janelle and xavier are training for a marathon. the equation and graph …
12
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which machine produces juice boxes at a faster rate? triton xz rockner …
Triton XZ (assuming the graph is Triton XZ's production, and its rate is higher than Rockner 2.0's inferred lower rate). Wait, maybe the graph is Triton XZ, so Triton XZ produces …
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juanita is on the basketball team and played in 30 games last month. a …
5
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madsen energy and spora electric are two utility companies operating in…
Spora Electric charges less. The difference is $0.03 per kilowatt - hour.
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juanita is on the basketball team and played in 30 games last month. a …
6
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the graph shows the cost to bowl at bowl - a - rama. the lines represen…
\(2\)
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the graph shows the cost to bowl at bowl - o - rama. the lines represen…
\(4\)
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juanita is on the basketball team and played in 30 games last month. a …
6
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juanita is on the basketball team and played in 30 games last month. a …
17
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next, add the values in the numerator to find the sum of the distances …
\(76\)
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taylor and emma sell hand - knit sweaters to raise money for charity. t…
25
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taylor and emma sell hand - knit sweaters to raise money for charity. t…
Taylor
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a sample of 10 students were asked how many minutes they spent reading …
The distances from 29 (from left to right) are: 12, 5, 9, 6, 2, 12, 14, 2, 4, 10
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number of new cases for 2004, rounded to the nearest whole nu years sin…
The regression equation is \( y = -23.8x + 749.2 \) and the number of new cases in 2004 is approximately \( \boxed{559} \)
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the table shows the amount of gas in mr. orbisons tank, y, as a functio…
\(y=-2x + 27\)
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the mean of three numbers is 14. two of the numbers are 10 and 6. what …
26
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the table shows the amount of gas in mr. orbisons tank, y, as a functio…
The rate of change is \(-2\). It represents the amount of gas decreasing in the tank with each hour Mr. Orbison drives.
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the average of three numbers is 16. if one of the numbers is 18, what i…
30
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the table shows the amount of gas in mr. orbison’s tank, y, as a functi…
The initial value is \(27\). It represents the amount of gas in the tank when Mr. Orbison has driven \(0\) hours (the starting amount of gas in the tank).
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what is the mean absolute deviation, or mad, of this sample? solve on p…
\(2.2\)
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if the average of three numbers is 25. two of these numbers are 18 and …
17
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at 10:00 a.m., pihu and gianna both started running toward each other f…
s: - How many miles does Pihu run after 44 minutes? \( \approx 3.38 \) miles - How many miles does Gianna run after 25 minutes? \( \approx 1.79 \) miles - Do Pihu and Gianna meet …
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a) initial value 10 b) is the rate of change positive or negative? i) p…
\(8\)
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vanessa opens a new savings account. she makes an initial deposit, and …
The first box is filled with $10$ and the second box is filled with $0$.