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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the two - way table below shows the number of students enrolled in an i…
c) 67%
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the carolina panthers football team won 41% of their football games in …
a) The events are dependent because the Panthers won 56% of games when they played at home and 41% of the games overall.
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the two - way table summarizes whether or not a soccer team had practic…
b) They appear to be dependent events because \( P(\text{holding soccer practice} | \text{raining}) = 0.70 \) and \( P(\text{holding soccer practice}) = 0.81 \) and the values are…
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systems of equations the weight of two alligators was studied over a pe…
After 4 months, the alligators will weigh the same amount, and their weight will be 12 lbs.
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a student picks a random letter from the word $pi$ and a random letter …
c) 12
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it was -5 °c in copenhagen and -12 °c in oslo. which city was colder? a…
Oslo was colder. a. -12 meters b. 28 meters c. 40 meters a. $3 > -3$ b. $12 < 24$ c. $-12 > -24$ d. $5 = -(-5)$ e. $7.2 > 7$ f. $-7.2 < -7$ g. $-1.5 = \frac{-3}{2}$ h. $\frac{-4}{…
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maximus cooks \\(\frac{4}{3}\\) cups of rice every day for his family. …
4
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a spinner is divided into five equal sections labled a, b, c, d, and e.…
First box: 5 Second box: not reasonable (or unexpected, depending on context)
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dhruv has 4 cups of cereal. he eats \\(\\frac{2}{3}\\) cup every day. h…
1. The expression representing the situation is $4 \div \frac{2}{3}$ 2. The model on the left (showing 1 whole split into 3 parts with 2 shaded) represents the amount of cereal Dh…
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2. write the recursive arithmetic rule: a. 12, 19, 26, 33... ( t(n + 1)…
a. $t(n+1)=t(n)+7$, $t(1)=12$ b. $t(n+1)=t(n)-11$, $t(1)=9$
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30 is 0.2% of what number? use pencil and paper. would you expect the a…
For the box: \( 15000 \) For the expectation: The answer is a lot greater than 30 because 0.2% is a very small percentage, so the whole number (of which 30 is 0.2%) must be much l…
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(02.01 mc) a bread distributor conducts regular surveys of consumer spe…
C. Point (7, 2) is an outlier.
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40 to boil the bonsha, jack needs 4\\frac{1}{2} cups of water. he measu…
6
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to boil the bamboo, jack needs 4 1/2 cups of water. he measures the cor…
The top (first) model, with the shorter shaded segment that spans 3 out of 4 equal parts between 0 and 1 on the number line.
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given the following table: | x | f(x) | |----|------| | 1 | -1 | | 4 | …
$a = 1$ $h = 4$ $k = 0$
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(02.01 mc) a bread distributor conducts regular surveys of consumer spe…
B. The correlation for these data is \( r=-0.5 \)
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1. study unit 3 vocab quizlet/blooket use unit 3 vocabulary on onenote …
1. To fight and take over another country: conquer 2. The edge of a state’s territory: border 3. To allow or help something to happen: facilitate 4. Cultures spread and mix with e…
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1. study unit 3 vocab quizlet/blooket use unit 3 vocabulary on onenote …
| Definition | Matching Term | |------------|---------------| | To fight and take over another country | conquer | | The edge of a state’s territory | border | | To allow or help …
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use the idea strategy to answer multiple choice questions: i: identify …
To fight and take over another country: conquer The edge of a state’s territory: border To allow or help something to happen: facilitate Cultures spread and mix with each other: c…
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directions: write a clear, organized two paragraph essay explaining why…
To write the essay: ## Paragraph 1: Introduction and Thesis Julius Caesar was assassinated due to the senators’ fear that his increasing power threatened the Roman Republic, as th…
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3) find \\( \\log_{7} 7^{11} \\)\ 4) show that \\( \\frac{1}{2} \\log_{…
$11$ ### Problem 4: Show that $\frac{1}{2}\log_{3} 36=\log_{3} 2+\log_{3} 3$
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compare and contrast national and state governments write a two- to thr…
## Comparing and Contrasting U.S. National and California State Governments The U.S. national government and California state government share a core structural foundation rooted …
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he turned sideways to try and get astride, looking the other way. sourc…
with one leg on each side
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kaitlyn is building a model railroad. she has pieces of track that are …
6 pieces
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as the snake attacked, leo blasted it in the eyes, causing it to veer l…
D. swerve
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select the correct answer. which is the best way to revise this sentenc…
B. She was an honorable person, which became clear when she refused to look at the answer key for the test.
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in the long run, nominal growth and long - term rates tend to converge.…
come together so as to form a single product
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the cherusci, the chauci, and other tribes named by tacitus, were evide…
united
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which combining form means plaque or fatty substance? a. ather/o b. -pl…
a. Ather/o
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nadia has logs that are $\frac{1}{2}$ m long. how many logs does she ne…
1. 12 logs 2. $12 \times \frac{1}{2} = 6$ 3. $6 \div \frac{1}{2} = 12$
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nadia has logs that are $\frac{1}{2}$ m long. how many logs does she ne…
1. Number of logs: 12 2. Correct multiplication equation: $12 \times \frac{1}{2} = 6$
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nadia is setting up pools with different lengths for a boom run tournam…
12 logs
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answer attempt 1 out of 3 answer type: interval interval:
$(6, \infty)$
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karen drove 250 miles using 9 gallons of gas. at this rate, how many ga…
9.9 gallons
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instructions solve the following problem and select your answer from th…
$\frac{1}{5}$
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a random sample of packages delivered by a company were tracked if they…
90%
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the percentage of adolescents ages 13 to 18 owning a cell phone in 2012…
$\approx 47.5$ (rounded to one decimal place, or 47.54 for precise value)
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question 14 (multiple choice worth 10 points) (m2024 wc) monthly privat…
2.2
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the box plots below show the lifespan, in months, of laptop batteries m…
Company B
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a survey was taken of students in math classes to find out how many hou…
Median, because there is 1 outlier that affects the center
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207.8 ÷ 10 =
20.78
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38.2 ÷ 100 =
0.382
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the heights of basketball players, in inches, on two different teams is…
The All Stars, with a mean of approximately 66.4 inches
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4. 7.8÷0.01=
780
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the table given shows the length, in feet, of dolphins at an aquarium. …
There is an outlier at 28 feet.
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7. 4.2 ÷ 100 =
0.042
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question 11 (multiple choice worth 10 points) (01.01h lc) a data set li…
Histogram, because the data is numerical
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the heights, in cm, of some plants in a greenhouse are shown below. 13.…
First quartile
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the following is a list of grades that students received on a recent pr…
Box plot
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what word in line 1 has a sad or depressing connotation? a plain is a b…
s are matched to each question using the provided word bank on the right, focusing on literary terms, connotations, and text analysis.
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question 7 (maximum choose from 10 points) the upperclassmen at a high …
The correct frequency table is the fourth one (from left): | | Comedy | Horror | Total | |----------|--------|--------|-------| | 11th Grade | 81 | 39 | 120 | | 12th Grade | 54 | …
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the basketball team at bakersfield high school recorded their wins and …
There is a strong, positive association.
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crumbs cookies was interested in seeing if there was an association bet…
Sugar cookies with no frosting
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for which of the following distributions is the mean most likely to be …
The first leftmost histogram (the one with bars decreasing in height from right to left, with the tail on the left side)
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the drama teacher monitored the number of people who attended the schoo…
0
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average waiting time at a doctors office according to the graph, what w…
-7 minutes per month
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answer the prompt: a cell phone company uses the equation $c = $0.20t +…
Independent variable: the number of text messages, $t$ Dependent variable: total cost for a month of service, $C$
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question 2 (multiple choice worth 10 points) (01.03h mc) the table show…
Player A is the most consistent, with an IQR of 1.5.
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teresas taco truck sweet potato: 30, 35, 40, 65, 20, 50 chicken: 20, 40…
The scatter plot should have points at \((20, 40)\), \((30, 20)\), \((35, 40)\), \((40, 75)\), \((50, 45)\), \((65, 50)\) plotted on the coordinate system with "Sweet potato" on t…
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at a water park, there are several different attractions. the following…
3 categorical, 2 numerical
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maxwells outdoor activities bike riding (min.) 90 60 70 90 80 20 50 swi…
Plot the points (90,40), (60,90), (70,60), (90,30), (80,70), (20,50), (50,70) on the scatter plot with x - axis as Bike riding (min.) and y - axis as Swimming (min.).
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jakes work trips distance (mi.): 160, 150, 180, 200, 140, 110, 170, 190…
The scatter plot is created by plotting the points (160, 8), (150, 8), (180, 11), (200, 20), (140, 4), (110, 3), (170, 10), (190, 16), (120, 4) on the graph where the x - axis rep…
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does this scatter plot show a positive trend, a negative trend, or no t…
no trend
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0, 4, 16, 36, 64
The sequence follows the formula $\boldsymbol{(2n)^2}$ where $n$ starts at 0. The next term in the sequence is $\boldsymbol{100}$.
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does this scatter plot show a positive trend, a negative trend, or no t…
positive trend
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does this scatter plot show a positive trend, a negative trend, or no t…
negative trend
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(\frac{34}{110} = \frac{x}{900})
$x = \frac{3060}{11}$ (o aproximadamente $278.18$)
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does this scatter plot show a positive trend, a negative trend, or no t…
no trend
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does this scatter plot show a positive trend, a negative trend, or no t…
positive trend
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the table shows a function. is the function linear or nonlinear? | x | …
linear
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does this scatter plot show a positive trend, a negative trend, or no t…
no trend
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the table shows a function. is the function linear or nonlinear? | x | …
linear
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(\frac{34}{110}=\frac{x}{900})
$x = \frac{30600}{110} = \frac{3060}{11} \approx 278.18$ (o exactamente $\frac{3060}{11}$)
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does this scatter plot show a positive trend, a negative trend, or no t…
no trend
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does this scatter plot show a positive trend, a negative trend, or no t…
no trend
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does this scatter plot show a positive trend, a negative trend, or no t…
no trend
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does this scatter plot show a positive trend, a negative trend, or no t…
no trend
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divide. 19.214 ÷ 13 = □
\(1.478\)
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2. compare each pair of graphs to determine which line is a better fit …
The line in Graph B is a better fit for the data.
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example 3 what is the written form of the function represented by the t…
The function is \( f(x) = 4 \cdot 3^x \)
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cc > chapter 5: ratios > section exercises 5.1 > exercise 25 divide. $1…
$4.6$
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write explain the relationship between the terms trend line and model. …
s: a. \(y = 2x+1\) b. \(y=-0.3x + 15\) (or a similar estimated equation based on the trend line)
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look at this set of ordered pairs: (11, 8) (4, -15) (8, 12) (13, 8) (18…
yes
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you mix soda water, fruit punch concentrate and ginger ale in the ratio…
You should use \(\boldsymbol{4}\) pints of soda water. You should use \(\boldsymbol{8}\) pints of fruit punch concentrate. You should use \(\boldsymbol{20}\) pints of ginger ale.
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look at this table: | x | y | |----|----| | 18 | 15 | | 20 | 15 | | 18 …
no
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during a checkers game, there are 16 pieces left. the ratio of black to…
6
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4 use the symbols <, >, or = to compare each pair of fractions. ex $\fr…
$<$ #### Part b
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look at this set of ordered pairs: (14, 18) (15, 18) (14, 8) (-14, 9) (…
no
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twelve of the 28 students in a class have a dog. what is the ratio of s…
The correct ratio of students who have a dog to total students is \( 12 : 28 \) (or simplified \( 3 : 7 \)). If the ratio is to students without a dog, it is \( 12 : 16 \) (or sim…
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look at this table: | x | y | |----|----| | 16 | 3 | | 4 | -1 | | 13 | …
yes
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look at this set of ordered pairs: (8, -9) (6, 17) (14, 9) (-2, 8) (0, …
yes
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look at this set of ordered pairs: (8, 9) (15, -18) (10, 9) (8, 16) (10…
no
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8. there are 26 third graders and 32 fourth graders going on a field tr…
s: - Number of vans needed: 6 - Number of students in each van: 5 vans have 10 students and 1 van has 8 students (or the average is $\frac{29}{3}\approx9.67$ students per van, but…
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look at this table: | x | y | |----|----| | 20 | 0 | | -5 | 16 | | -1 |…
yes
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look at this set of ordered pairs: (-6, 13) (4, 1) (11, 10) (5, 2) (14,…
yes
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1. the table shows the average points scored per game by an nba player …
A scatter plot with: - X-axis labeled "Season" (values 1 through 10) - Y-axis labeled "Average Points Per Game" (range 20 to 40) - Plotted points: $(1, 28.2), (2, 22.7), (3, 37.1)…
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look at this table: | x | y | |----|----| | 19 | -13 | | -1 | 0 | | 6 |…
yes
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7. processes & practices reason mitzi has 79 coins. she divides the coi…
Each person gets 19 coins.
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scatter plots practice date 1. the table shows the average points score…
1. Scatter plot: Plot the points (Season, Average Points Per Game) on a graph with Season (1 to 10) on the horizontal axis and Average Points Per Game (20 to 35 range) on the vert…
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kirsten has 9 syrup containers from a local cafe. there are 6 millilite…
54 milliliters