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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use the model to complete the equivalent fraction sentence. the colored…
$\frac{2}{4} = \frac{1}{2}$
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find the equation of the exponential function represented by the table …
$y=2^x$
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review the claim and the two pieces of evidence. drawing in adult color…
1. Evidence A is anecdotal. It might not represent the views of other workshop participants or art therapists themselves. 2. Evidence A does not directly support the claim. It doe…
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sharon is making latkes, a kind of potato pancake. she needs \\(\\frac{…
$\frac{16}{3}$ or $5\frac{1}{3}$
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use the graph of the function to complete the table. input output 5 7 9
| Input | Output | |-------|--------| | 5 | 6 | | 7 | 8 | | 9 | 4 |
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what percentage of the shape is blue? write your answer using a percent…
49%
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april took out a $600 loan from the bank. at the end of 5 years, she pa…
2%
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all 800 students at amayas school took a survey to help choose a new it…
240 students
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a fair coin is tossed two times in succession. the set of equally likel…
\(\frac{1}{4}\)
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a 12 - sided die is rolled. the set of equally likely outcomes is {1,2,…
\(\frac{1}{12}\)
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the table shows the number, expressed in millions, of citizens who move…
\(0.62\)
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a restaurant has 30 tables in its dining room. it takes a waiter 10 min…
Filled table: | Minutes | Tables | |---------|--------| | 10 | 8 | | 37.5 | 30 | Time to set all tables: 37.5 minutes
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fatoumata is making lemonade from concentrate. the relationship between…
$\frac{6}{5}$
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2. using a picture, show how six people could share four sandwiches. th…
Each person gets $\frac{2}{3}$ of a sandwich. The equation is $4 \div 6 = \frac{2}{3}$. (For the picture: Draw 4 rectangles (sandwiches), divide each into 6 equal smaller rectangl…
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the table shows dylans distance from home, y, as a function of the time…
No, because the rate of change should be negative.
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solve the inequality $x + 3 \\leq -1$. $x + 3 \\leq -1$ $-3 \\ \\ \\ -3…
When substituting - 3 for \( x \) in \( x + 3\leq - 1 \), the left - hand side is \( -3+3 = 0 \), and the inequality \( 0\leq - 1 \) is false (which is used to test that - 3 is no…
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elijah started hiking at an elevation of -12 feet below sea level. he h…
elevation $=$ change in elevation from hiking $+$ starting elevation Filling in the values (in terms of the expressions): The first box (elevation) should be filled with "elevatio…
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5 an aquarium needs to hold 9 gal of water for every 3 miniature goldfi…
B. (3, 1), E. (18, 6)
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the samurai warrior was described as: ______ ______ ______ ______ we us…
Minamoto no Yoritomo
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jack starts with 2 dollars in his account. he deposits the same amount …
\( d = 2 + 8 \cdot x \) (Filling the boxes from left to right: \( d \), \( 2 \), \( 8 \), \( x \))
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17 multiple choice 1 point the means of delivering a specific piece of …
17. platform. 18. decoding
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jack starts with 2 dollars in his account. he deposits the same amount …
dollars in account = amount deposited per day × number of days + starting amount (So in the boxes: first box: dollars in account; second box: amount deposited per day; third box: …
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jack starts with 2 dollars in his account. he deposits the same amount …
Slope: \( 8 \) Equation: \( d = 8x+2 \)
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in communication, the means by which messages are carried is the feedba…
1. the medium. 2. synergy.
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3. | x | y | | -6 | 12 | | -5 | 14 | | -4 | 16 | | -3 | 18 | | -2 | 20 …
A. \(y = 2x+24\) B. \(28\) ### Problem 4 #### A. Equation
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use the model to complete the equivalent fraction sentence. the colored…
$\frac{3}{12} = \frac{1}{4}$ The first box is 12, the second box is 4.
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arithmetic readiness converting between percentages and decimals (a) wr…
(a) $0.007 = 0.7\%$ (b) $541\% = 5.41$
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arithmetic readiness converting between percentages and decimals (a) wr…
(a) $0.6798$ (b) $160$
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3. | x | y | | -6 | 12 | | -5 | 14 | | -4 | 16 | | -3 | 18 | | -2 | 20 …
(Part A): \(y = 2x + 24\)
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tobias sent a chain letter to his friends, asking them to forward the l…
$37 \cdot 4^{10t}$
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name mystery numbers i have 4 tenths and 9 ones. what number am i? i ha…
1. $9.4$ 2. $5.3$ 3. $7.1$ 4. $8.4$ 5. $0.6$ 6. $9.7$ 7. $2.3$ 8. $8.5$ 9. $6.2$ 10. $8.0$ 11. $5.2$ 12. $9.5$
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nicholas sent a chain letter to his friends, asking them to forward the…
$P(t) = 50(1.99)^{\frac{t}{12}}$
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the city of red rock collects population data every year. this year, th…
$y = 66100(0.98)^x$ 5 years
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cameron sent a chain letter to his friends, asking them to forward the …
2.5
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nora bought a motorcycle for $12,000. one year later, she looked online…
Exponential equation: $y = 12000(0.88)^x$ Value after 5 years: $\$6330$
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arithmetic readiness fraction multiplication multiply. write your answe…
$\frac{14}{15}$
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calculate \\(\\left(5 \\times 10^{7}\ ight)^{-2}\\) write your answer i…
$4 \times 10^{-16}$
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activity 2 maths connection average rate of change the average rate of …
To address the problem of finding the average rate of change for Zorana's profit over the time interval \((1, 3)\), we follow these steps: ### Step 1: Recall the Average Rate of C…
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when lisa first moved to rose valley one decade ago, it had a populatio…
## Equation: \(y = 82400(0.97)^x\) ## Population after 3 decades: 75200 people
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the current fox population in a protected region is 367 and is decreasi…
\( f(x) = 367\cdot0.92^{x} \) The estimated fox population 9 years from now will be 173.
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mr. olsen, the owner of trading card depot, purchased a rare baseball c…
$y = 98.70(2)^x$ $3158.40$
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molly completes \\(\frac{3}{10}\\) of her science project in \\(\frac{4…
$\frac{3}{8}$
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question 8 (multiple choice worth 5 points) (08.05 mc) read this quote,…
B. Mahatma Gandhi ### Question 9
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5. $\frac{3}{4} + \frac{5}{8}$ = 7. $\frac{5}{6} + \frac{4}{5}$ = 9. $\…
$\frac{11}{8}$ (or $1\frac{3}{8}$) ### Problem 7: $\boldsymbol{\frac{5}{6} + \frac{4}{5}}$
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in 2003 approximately 80,400,000 pounds of blueberries were harvested i…
400000 ### Second Sub - Question:
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circle the greatest number: 9,082,465 13,708,247 47,015 569,316,982
\(569,316,982\) (This number should be circled as it is the greatest among the given numbers.)
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what inequality does this number line show? -400 -200 0 200 400 600 wri…
\( x > 400 \)
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question 4 (multiple choice worth 5 points) (08.03 mc) use the table of…
D. spilled over into neighboring countries
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draw line of best fit score: 0/10 penalty: 1 off question graph the lin…
To draw the line of best fit, follow these steps: 1. Identify the general trend of the scatter plot (positive in this case, as y - values tend to increase with x - values). 2. Sel…
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4. what does the word \demonstrations\ most closely mean as it is used …
A. protests or rallies
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question graph the line of best fit. click to plot a point. two points …
To graph the line of best fit: 1. Observe the general trend of the scatter plot (negative correlation here, as \(x\) increases, \(y\) decreases). 2. Identify two points that seem …
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what does the complex fraction \\(\\frac{\\frac{20}{3}}{\\frac{1}{6}}\\…
\(40\)
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the freedom of religion provision in the first amendment has two parts.…
The part that prevents the creation of a religious government is related to the Establishment Clause of the First Amendment. The Establishment Clause prohibits the government from…
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dan surveyed his classmates about the number of minutes they spend on s…
the median number of minutes, the greatest number of minutes
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karas family is thinking to know the gas mileage of the van. $3\\frac{3…
\(\frac{75}{4}\) (or \(18\frac{3}{4}\) or \(18.75\))
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3. \\(\frac{7}{10} + \frac{6}{10} = \\) \\(square\\) \\(square\\vert\\v…
The sum is $1\frac{3}{10}$ (or $\frac{13}{10}$). If we consider the boxes, the top box is the whole number part (1), and the bottom two boxes are the numerator (3) and denominator…
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tom created a box plot based on this data set: 105 59 78 93 46 62 105 3…
the lower quartile, the median
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billy collected this data set: 20 23 25 26 26 27 27 28 29 31 33 34 35 3…
# Explanation: ## Step1: Count frequency for 20 - 24 Data in 20 - 24: 20, 23, 25? Wait, no, 20, 23. Wait, data set: 20, 23, 25, 26, 26, 27, 27, 28, 29, 31, 33, 34, 35, 35, 35, 35,…
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8. assessment there are 44 marbles in a jar. some are red and 23 are bl…
A. $44 - 23 = 21$ $21 + 13 = 34$ El número final de canicas rojas es 34.
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jen created a box plot based on this data set: 4 12 13 17 19 19 20 24 2…
the minimum
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which of the following can you determine from this histogram? select al…
The mean is between 4 and 5.
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translating systems word problems independent practice translate each o…
1. $x + y = 22$; $5x + y = 50$ 2. $C = 125 + 50m$; $C = 75 + 60m$ 3. $c + d = 47$; $d = c + 25$ 4. $5p + 3c = 8.52$; $2p + 4c = 5.76$ 5. $t + f = 50$; $2t + 5f = 145$ 6. $j = 4s$;…
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use the answer from step 1 to solve step 2. 1. dani picked some red flo…
7 red flowers
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ann created a histogram based on this data set from her lab partner: 4.…
6.0 - 6.4, 6.5 - 6.9
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ms. cheneys class had a holiday toy drive. she recorded the number of t…
The left - most box plot (the first one among the three) represents the data.
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8.3 sumar fracciones con denominadores diferentes objetivo del aprendiz…
# Explicación: ## Ejercicio 7: ### Paso 1: Igualar denominadores $\frac{3}{4} = \frac{3 \times 2}{4 \times 2} = \frac{6}{8}$ ### Paso 2: Sumar fracciones $\frac{6}{8} + \frac{1}{8…
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an english teacher surveyed his students about the number of books they…
s: 1. "Clearly shows the median number of books read": Box plot 2. "Gives the mode of the number of books read": Line plot 3. "Indicates the highest and lowest numbers of books re…
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the graph and the table show the high temperatures in a city over a 10 …
60°F ### Part b
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last year, the chief of a fire station recorded how long it took to res…
the range of response times, the median response time, the slowest response time
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1 which detail from paragraph 3 best helps the reader understand the me…
To solve these reading comprehension questions, we analyze each one: ### Question 1 (about "well - turned - out") - **Brief Explanations**: The phrase "well - turned - out" genera…
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debra is helping her little brother learn multiplication facts. each we…
A. whether Debra’s brother improved each week B. the lowest number of correct answers C. the total number of weeks D. the number of times Debra’s brother got 40 out of 40 correct
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what is the percent of change from 6 to 9? 33% decrease 33% increase 50…
50% increase
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what is the percent of change from 85 to 51? 42% increase 40% decrease …
40% decrease
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the table shows y, the number of tons of waste left in a landfill after…
$y = -\frac{2}{3}x+24$ ### Part B (First blank: Slope)
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twin rivers has a population of 90,800, and its population has been inc…
9
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while considering whether to open a new library branch, the city counci…
To complete the line plot, we count the frequency of each number of trips: ### Step 1: Count trips for "1" The data has four "1"s? Wait, no—wait the data list: "1, 1, 1, 1, 2, 2, …
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find each quotient. 6. \\(3.2\\enclose{longdiv}{19.2}\\) 7. \\(0.01\\en…
6 ### Problem 7: \( 0.01 \enclose{longdiv}{8.64} \)
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14. micah’s rain gauge showed that $9\\frac{1}{2}$ centimeters of rain …
$\frac{4}{5}$ centimeters
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21. which is equal to 12.74 divided by... a 0.08 b 0.08 c 0.08 d 0.8
The option with 0.8 (e.g., if options are A: 0.08, B: 0.8, C: 8, D: 80, then the answer is B. 0.8)
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a town was considering a new tax to fund a recycling program. residents…
A resident in the group who supports the tax is likely to be male.
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pam collected this data set: 8 7 4 10 7 5 4 8 7 7 10 7 8 7 4 6 8 3 she …
She put too few X’s over 7.
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miguel has a booth at the cards, comics, and games convention, where he…
First blank: median; Second blank: mean
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miguel has a booth at the cards, comics, and games convention, where he…
The distribution of the numbers of trading cards sold is best described as not symmetric. So, the median is a more appropriate measure of center.
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question mayerlin filled up her car with gas before embarking on a road…
\( 14 - 2t \)
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damon recorded the snowfall in his town for each day of january. this l…
standard deviation
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damon recorded the snowfall in his town for each day of january. this l…
The distribution of snowfall amounts is best described as not symmetric. So, the median is a more appropriate measure of center.
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mels motorcars keeps track of the fuel economy of each used car sold. t…
The distribution of miles per gallon is best described as symmetric. So, the first blank is filled with "symmetric".
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1) devin is checking rental prices of cabins in the mountains for a ski…
The distribution of the prices is best described as right - skewed (positively skewed). So, the mean is not an appropriate measure of center.
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at yogurt yum, customers fill a bowl with yogurt and toppings and then …
- The distribution of weights is best described as \(\boldsymbol{\text{symmetric}}\). - \(\boldsymbol{\text{Mean}}\) and \(\boldsymbol{\text{Median}}\) are both appropriate measur…
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the students in a statistics class are graphing the ages of their 9 par…
51
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what is the range? 88 82 86 81 95 80 86 95 89
15
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a tank at a factory contains water. workers are filling the tank at a c…
(a) As time increases, the amount of water in the tank increases. The amount of water in the tank increases at a rate of 14 liters per minute. (b) 66 liters
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a construction worker checked the number of screws needed to complete 1…
52
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mai is flying a drone. she is controlling the drone so that it ascends …
(a) As time increases, the altitude of the drone increases. The altitude of the drone increases at a rate of 7 meters per second. (b) 89 meters
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create a realistic scenario involving a population (such as a town, sch…
- Starting population (\( P_0 \)): 1000 - Percent increase: 5% (or 0.05 as a decimal) - Population after 1 year (\( P_1 \)): 1050 - Population after 2 years (\( P_2 \)): 1103 (rou…
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(\frac{1}{2}+\frac{5}{7}) (\frac{1}{2}+\frac{5}{7}=\frac{7}{14}+\frac{1…
$1\frac{3}{14}$
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sophia is learning to juggle using pineapples. in 10 practice sessions,…
The range of the number of pineapples damaged is 4.
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marie has various playlists on her mp3 player. the 8 playlists contain …
26
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tessa measured the lengths of 6 rugs in the home furnishings department…
41
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jason bought supplies for a class project and brought the receipt to sc…
$\$37.00$