统计与概率
数据分析、概率分布、假设检验与统计方法。
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which equation below corresponds to the table of values? * | x | y | | …
\( y=-0.5x + 2 \) (corresponding to the option \( y=-0.5x + 2 \))
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system c line 1: $y=\\frac{2}{3}x + 1$ line 2: $-2x + 3y = 3$ graph of …
This system of equations is: consistent dependent This means the system has: infinitely many solutions
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system b line 1: $y = -x + 3$ line 2: $y = x + 1$ graph of two lines in…
This system of equations is: consistent independent This means the system has: a unique solution Solution: \( (1, 2) \)
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system a line 1: $y = -\\frac{1}{3}x + 3$ line 2: $y = -\\frac{1}{3}x -…
s: This system of equations is: inconsistent This means the system has: no solution (For the solution box, since no solution, it remains empty as there's no (x,y) pair. But follow…
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4. a student worked out at a gym continuously for 50 minutes. the graph…
-2
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read the following passage from wuthering heights, by emily bronte then…
b. The narrator experiences psychological conflict.
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part 1 of 2 think about the process there are 4,000 books in the town’s…
D. \( 3,200 = m \cdot 4,000 \)
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the median of 5, 7, 2, 9, 8 is: 5 7 8 6
B. 7 (assuming the options are labeled with A, B, etc. where B corresponds to 7)
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the median of 5, 7, 2, 9, 8 is: 5 7 8 6
B. 7 (assuming the options are labeled as A. 5, B. 7, C. 8, D. 6)
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mat painter font ali total h i j k l m n o summary groups count sums av…
The completed ANOVA table (approximate values) is: | Source of Variation | SS | df | MS | F | P - Value | F crit | |---------------------|----------|-----|----------|----------|--…
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convert the following proportion into a percent. \\(\\frac{24}{77}\\) ?…
31%
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convert the following proportion into a percent. \\(\\frac{20}{31}\\) \…
65%
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convert the following proportion into a percent. \\(\\frac{14}{29}\\) ?…
\(48\%\)
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convert the following proportion into a percent. \\(\\frac{24}{97}\\) ?%
\( 24.74\% \) (or depending on rounding requirements, could be \( 24.7\% \), \( 25\% \), etc., but the precise calculation gives approximately \( 24.74\% \))
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convert the following proportion into a percent. \\(\\frac{51}{52}\\) ?…
98%
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40 x: number of minutes y: number of steps 40 what does the equation y …
15
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x: number of minutes y: number of steps what does the equation y = 15x …
Hassan starts at the 30 steps and climbs up 15 steps each minute.
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x: number of minutes y: number of steps how many solutions does this sy…
\((6, 60)\)
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y = 11x x + y = 60 chaperones (x) students (y) 3 33 4 44 5 55 6 66 chap…
5 chaperones and 55 students
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understand systems of linear equations - instruction - level h willow a…
45
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understand systems of linear equations - instruction - level h b) sarit…
3
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azel and caleb are close friends. while they are having a signed conver…
B. by the facial expression used when signing it
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what are some tips to keep in mind when sorting data? check all that ap…
- Remember that data will change when sorted. - Rows and columns can be sorted. - Multiple criteria can be used to sort data.
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which characters in the function shown represent the arguments? =max(b2…
(B2:B6,C4,100)
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more letters n. a __________ __________ is an intensive investigation o…
case study ### O
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civil liberties in latin america vary. this means that _______. a. ever…
B. some people have more civil liberties than others
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brazil has compulsory voting laws. this means that _______. a. every li…
A. every literate person aged 18 - 70 is required to vote
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this continuum scale shows some famous characters from folktales. cinde…
the Big Bad Wolf
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read the excerpt from part one of trifles. mrs. hale (examining the ski…
B. looking very closely
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read the excerpt from part one of trifles. hale. so i knocked again, an…
D. He is eager to relay the details of the incident with as much accuracy as possible.
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read the excerpt from part one of trifles. hale. well, she looked queer…
B. strange
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directions: read each statement and determine whether it is true of fal…
1. True 2. True 3. True 4. True (assuming literal interpretation of isolating oneself) 5. False; Correct: "Racial differences mean differences in physical or cultural traits betwe…
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how psychologists do research directions: using the magic square on the…
19. predictions 2. hypothesis 15. sample 23. control group 6. causation 8. correlation 16. biased 4. negative 9. experimentation 1. independent 14. replicated 22. naturalistic obs…
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1. marta is preparing her presentation on glossophobia, also known as t…
A. attention - getter
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unit review a: foundations for functions problem 11 at the county beach…
The function family is linear. The equation simplifies to \( S = 25L + 25 \), which is in the form \( y=mx + b \) (linear function) with a constant slope (rate of change). #### Pa…
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6/10 what does opaque mean? you can see through it, light is transmitte…
The option "You cannot see through it, the light is absorbed" (the third option among the given choices)
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20. a cup in joey’s house contains 8 ounces of water and is leaking at …
\( 8 - 0.25t = 4 + 1.2t \)
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17. keira types transcripts for a part - time job. so far, she has type…
\( w = 65m + 120 \)
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what does \stress\ mean to you? define \stress\ in your own terms: what…
Stress is a mental and physical response to demanding or overwhelming situations, and it affects me by either motivating me to act or causing anxiety and fatigue that hinders my d…
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question 10 of 10 what did spheres of influence mean for china? a. chin…
C. Chinese trade was dominated by foreign influence.
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here are the shopping times (in minutes) for each of sixteen shoppers a…
For the grouped frequency distribution: - 16 to 19: 4 - 20 to 23: 2 - 24 to 27: 4 - 28 to 31: 3 - 32 to 35: 3 (For part (b), constructing the histogram would involve using these f…
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find the sum of the finite arithmetic series. \\(\\sum_{n=1}^{12} (4n -…
300
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what caused the economic depressions in the late 1800s? a. crop failure…
B. There were more goods available than there was demand for them.
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for a school project, layla makes a paste made from only two ingredient…
D. 3:1 (assuming the last option is D, but in the given options, the last one is 3:1. So the correct option is the one with 3:1, which is the last option: 3:1)
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find the first five partial sums of the series. 36 + 36 + 36 + 36 + 36 …
\( S_1 = 36 \) \( S_2 = 72 \) \( S_3 = 108 \) \( S_4 = 144 \) \( S_5 = 180 \)
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sunnys surf shop sold 160 surfboards this week, which was 320 percent o…
50 (corresponding to the option "50")
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washington middle school sold 405 tickets to the annual musical product…
900 (the option with 900)
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one teaspoon equals 0.5 centiliters. how many liters equal 50 teaspoons…
0.25 liters
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and set the wall between us once again. we keep the wall between us as …
D. The speaker and the neighbor repair the wall from opposite sides.
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throughout the year, yellen remained pessimistic about the economy and …
D. endorsed
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in kendra’s class, 40 percent of the students earned an a on the math t…
Kendra should have divided by 2 instead of multiplying by 2 in the denominator.
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something there is that doesnt love a wall, that sends the frozen-groun…
C. nature and hunters
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the glass booth’s supposedly shatterproof panes splintered, cutting her…
B. fragmented (assuming the second option is labeled B; if the options are in the order shown, the second option "fragmented" is the correct one)
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fact means : an impression, especially one that is contrived an opinion…
C. a piece of information about events that have occurred
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5 the line plot shows the amount of flour needed to complete 10 differe…
A. $14\frac{1}{2}$ cups
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sneer has the same or almost the same meaning as: slug smirk span shawl
B. smirk
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select the correct line plot. each x represents 1 night. stella records…
The line plot with 4 Xs at \( 7\frac{1}{3} \), 3 Xs at \( 7\frac{1}{4} \), 1 X at \( 8\frac{1}{4} \), and 6 Xs at \( 8\frac{1}{2} \) (identify the correct plot based on these coun…
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math 10c | unit 6 systems of linear equations lesson 2 | solving system…
The solution of the system \(\begin{cases}4x + y=7\\3x + 2y=-1\end{cases}\) is \((3,-5)\)
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eighteen cyclists were each asked the number of miles they biked last w…
(a) The grouped frequency table is: | Number of miles | Frequency | |-----------------|-----------| | 2 to 7 | 6 | | 8 to 13 | 4 | | 14 to 19 | 2 | | 20 to 25 | 3 | (b) The histog…
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2 the line plot shows the lengths of 15 fish. each x represents 1 fish.…
B. \( \frac{6}{8} \) inch (Note: \( \frac{6}{8} = \frac{3}{4} \), but as per options, B is the correct difference.)
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essentially, it holds returnees for an indeterminate period of monitori…
B. supervising
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the line plot shows the amount of time jason spent practicing basketbal…
D. $1\frac{1}{2}$ hours
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progress: the movement of the progress bar may be uneven because questi…
(Assuming the last option is "Completely tired and lacking energy") The last option (e.g., D. Completely tired and lacking energy)
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the movement of the progress bar may be uneven because questions can be…
D. a person who eats or uses something
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here are the shopping times (in minutes) for each of fifteen shoppers a…
For the grouped frequency distribution: - 18 to 22: 4 - 23 to 27: 3 - 28 to 32: 3 - 33 to 37: 5 (For the histogram, the bars would have heights 4, 3, 3, 5 respectively for the cla…
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the following list gives the number of public libraries in each of 10 c…
No mode
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the following list gives the number of pets for each of 11 students: 2,…
0, 4
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14. david wants to make sure that his audience understands what he mean…
D. Define it in context, such as, "The emoluments he received while in office, like interest from his properties and compensation for..."
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here are the numbers of children in 13 elementary school classes. 18, 1…
20
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markus scored 85, 92, 82, and 94 on the first four tests of the semeste…
\(5(x + 5) = 353 + x\) (the middle equation)
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the 5 students in mrs. campbells class were asked how many minutes it t…
(a) Mean: \(6.4\) minutes (b) Median: \(5\) minutes
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each of 8 students reported the number of movies they saw in the past y…
(a) Median: \(13.5\) movies (b) Mean: \(12.8\) movies
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a bag contains seven tiles labeled b, c, d, e, f, g, and h. one tile wi…
$\frac{1}{7}$
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a twelve - sided die with sides labeled 1 through 12 will be rolled onc…
\(\frac{2}{3}\)
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a box contains ten cards labeled q, r, s, t, u, v, w, x, y, and z. one …
$\frac{2}{5}$
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4. caleb has a variety of information for his speech on the effect of d…
A. statistics on average rainfall and crop yield
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9 the movie compares bias to a pair of glasses. what does that mean? a …
C. Glasses, like bias, can change the way you see the world
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find the first five partial sums of the series. -5 - 7 - 3 + 13 + 47 + …
\( S_1 = -5 \) \( S_2 = -12 \) \( S_3 = -15 \) \( S_4 = -2 \) \( S_5 = 45 \)
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find the first four partial sums of the series. 11 - 11 + 11 - 11 + 11 …
\( S_1 = 11 \) \( S_2 = 0 \) \( S_3 = 11 \) \( S_4 = 0 \)
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find the first five partial sums of the series. 16 - 64 + 256 - 1024 + …
\( S_1 = 16 \) \( S_2 = -48 \) \( S_3 = 208 \) \( S_4 = -816 \) \( S_5 = 3280 \)
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question 6 of 10 if someone is a \second generation\ immigrant, what do…
A. That their parents were the ones who moved here
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read the following passage: i can’t decide whether to go to the beyonce…
The first option: "I can’t decide whether to go to the Beyonce concert next month. She is my favorite singer, and I’ve saved enough for the ticket. On the other hand, the trains s…
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in an aquarium, there are 6 large fish and 8 small fish. half of the la…
\(\frac{3}{14}\)
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find the first four partial sums of the series. 27 - 27 + 27 - 27 + 27 …
\( S_1 = 27 \) \( S_2 = 0 \) \( S_3 = 27 \) \( S_4 = 0 \)
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an organization will give a prize to a local artist. the artist will be…
\(\frac{3}{4}\)
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find the first five partial sums of the series. -33 - 33 - 33 - 33 - 33…
\( S_1 = -33 \) \( S_2 = -66 \) \( S_3 = -99 \) \( S_4 = -132 \) \( S_5 = -165 \)
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if 20% of all manually filed returns contain errors, and 0.05% of all e…
c. 400 times more likely
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the movement of the progress bar may be uneven because questions can be…
“...but after the fourth handshake, they were talking with my aunts and uncles like old friends.” (paragraph 15)
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the movement of the progress bar may be uneven because questions can be…
A. lively
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what does the y-intercept of the line tell you about the situation? eac…
Each ream of paper costs $4.50.
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the dot plot shows the amount of milk, in gallons, that seventeen stude…
B. 11
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ashley deposits the same amount of money into a bank account every mont…
(a) 197 (b) As time increases, the amount of money in the account increases. At what rate is the amount of money in the account increasing? 45 dollars per month
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the line plot above shows the distance students live (in miles) from th…
D. $\frac{7}{8}$ mile
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find the first four partial sums of the series.\\(\\frac{1}{4} - \\frac…
\( S_1 = \frac{1}{4} \) \( S_2 = \frac{3}{16} \) \( S_3 = \frac{13}{64} \) \( S_4 = \frac{51}{256} \)
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if you got: exponential decay l now find: a town with a population of 1…
Approximately 20159 people.
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question 6 of 10 a police officer had a taxable income of $47,050 last …
B. $7950
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12. what does it mean to not take information at face value? think abou…
A. think about where the information has come from, who is giving the information, and what their motives are
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the line plot above shows the distance students live (in miles) from th…
D. $\frac{7}{8}$ mile
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what is the total amount of water in all of the jugs which have exactly…
C. \(1\frac{1}{2}\) gallons
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× \\(\\frac{99}{100}\\) which decimal below represents the fraction abo…
D. 0.99