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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ruby is working two summer jobs, making $12 per hour washing cars and m…
13, 14, 15 hours
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instructions: solve each problem to put the puzzle together. type your …
$\frac{1}{15}$
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instructions: solve each problem to put the puzzle toget bob has a box …
$\frac{5}{51}$
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instructions: solve each problem to put the puzzle together. type your …
$\frac{2}{15}$
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13. $1\\frac{1}{8}$ 14. $\\frac{1}{12}$ 15. $\\frac{7}{30}$ 16. $\\frac…
$\boldsymbol{>}$ ### Question 20:
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name period due date thursday, jan 29, 2020 every problem must have wor…
C ### Problem 2: Graph for Frozen Treats Sold
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2. the mean mark on a quiz was 7. the median mark was 6 and the mode wa…
a) A possible sorted set of marks: 1, 2, 3, 4, 5, 5, 5, 6, 6, 7, 8, 9, 10, 10, 10 b) - Mean: Increases from 7 to 7.8125, since the new mark (20) is higher than the original mean, …
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5. \\(\\frac{13}{100}\\)\ 6. \\(\\frac{4}{5}\\)\ 7. \\(\\frac{7}{10}\\)…
0.13 ### Problem 6: $\boldsymbol{\frac{4}{5}}$
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in exercises 19-22, write the number in scientific notation. 19. 22.2 ×…
19. $2.22 \times 10^{4}$ 20. $2.22 \times 10^{7}$ 21. $5.4 \times 10^{-5}$ 22. $5.4 \times 10^{-14}$
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16.1, 8.7, 6.4, 24.5, 4.2, 21.6; miles - kilometers table: miles 10, ki…
| Miles | Kilometers | |-------|------------| | 10 | 16.1 | | 4.2 | 6.7 | | 8.7 | 14 | | 15.2 | 24.5 |
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assignment do not go gentle you will now work through dylan thomass \do…
1. "Burn and rave" suggests a fierce, bright flame; people should resist death instead of fading quietly. 2. "Rage" means anger at death's injustice and passionate will to cling t…
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the height of a lamp is 100 centimeters. how tall is the lamp in inches…
39.37 in.
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at another sanctuary, the number of nesting turtles decreased by 10%. t…
260
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a bag of flour weighs 2.5 kilograms. about how much does the bag of flo…
5.5 lb
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a machine at a bakery is pouring out flour. the graph shows the amount …
(a) $5$ minutes (b) As time increases, the amount of flour in the machine decreases. At what rate is the amount of flour decreasing? $140$ grams per minute
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in exercises 13-18, write the number in scientific notation. 13. 72,000…
13. $7.2 \times 10^4$ 14. $7.2 \times 10^{12}$ 15. $7.2 \times 10^{-7}$ 16. $4.19 \times 10^7$ 17. $4.19 \times 10^{-3}$ 18. $4.19 \times 10^{-10}$
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1. - / 4 points a sample of size 110 is selected from a population with…
$0.50$ ### Part (b)
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mrs hale: id hate to have men coming into my kitchen, snooping around a…
1. "places in proper order" 2. organize 3. Arrange suggests a proper way to stack the pans and shows sympathy for Mrs. Wright.
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Question was provided via image upload.
13. 1320 14. 620 15. 6770 16. 9760 17. 211 18. 6390
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a town has a population of 13000 and grows at 5% every year. what will …
22234
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in exercises 7-12, write the number in decimal form. 7. $3.8 \\times 10…
7. $380000$ 8. $0.000038$ 9. $38000000$ 10. $62500$ 11. $0.00625$ 12. $0.0000000625$
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a town has a population of 7000 and grows at 4% every year. what will b…
11655
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a college finds that 10% of students have taken a distance learning cla…
\( 0.42 \)
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an airplane flies from san francisco to los angeles. the distance of th…
| Distance traveled in km, x | Number of people, y | |-----------------------------|----------------------| | 540 | 5 | | 540 | 25 | | 540 | 40 | | 540 | 60 |
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4. odakota recorded the number of grades 7 and 8 students born in each …
a) Suitable graphs include: - Double/Grouped Bar Graph: Ideal for comparing the number of Grade 7 and Grade 8 students across each season with side-by-side bars. - Stacked Bar Gra…
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a town has a population of 12000 and grows at 5% every year. what will …
21550
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a bus ticket costs $2.50 to ride, regardless of how far you travel. thi…
y = 2.50
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question a town has a population of 10000 and grows at 2.5% every year.…
11887
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3. rob researched accident statistics in his community. he learned that…
Rob's inference is **not valid**. He only compares total injury numbers, not the rate of injuries relative to how many people use each vehicle type. Since far more people drive ca…
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a new car is purchased for 22400 dollars. the value of the car deprecia…
12680.64 dollars
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in exercises 3-6, find the value of n. 3. 94,000,000 = 9.4 × 10ⁿ 4. 555…
3. $n=7$ 4. $n=11$ 5. $n=-5$ 6. $n=-11$
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the vertical change for this graph is the change in cost. what do we kn…
The cost, or the y-coordinate, is always $2.50.
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24. - / 5 points a college finds that 10% of students have taken a dist…
\( 0.08 \)
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1. - / 5 points assume that the population standard deviation is $\\sig…
(for part a): - Sample size $n = 50$: $\boxed{7.778}$ - Sample size $n = 100$: $\boxed{5.500}$ - Sample size $n = 150$: $\boxed{4.491}$ - Sample size $n = 200$: $\boxed{3.889}$ ##…
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23. - / 3 points g and h are mutually exclusive events. - $p(g) = 0.5$ …
\( 0.8 \)
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a, b, c, d four options, each with a table of q and r values. a: q=5, r…
A
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which situation best describes the relationship between all the values …
A. Rachel had six dollars and then started to save one dollar each week.
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question 5 the word diaspora means a. \a scattering over a wide area.\ …
A. "a scattering over a wide area."
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15) the table below shows preference between beef and chicken and apple…
### Problem 15a: Complete the table We have a contingency table for preferences between beef/chicken and apples/oranges. Let's define the rows as Apples, Oranges, and the columns …
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4. 1 / 1 points a random sample is selected from a population with mean…
\(n = 41\), \(n = 60\), \(n = 120\), \(n = 480\) (the options with these \(n\) values should be selected) ### Question 5 (a)
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question 7 m8 mod 5 dynamic review at a candy factory, a machine is put…
(a) 60 pounds (b) Correct statement: As time increases, the amount of candy in the container increases. Rate of increase: 40 pounds per minute
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an experiment consists of tossing a nickel, a dime, and a quarter. of i…
\(\frac{1}{2}\)
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22. -/ 3 points an experiment consists of tossing a nickel, a dime, and…
HHH, HHT, HTH, HTT, THH, THT, TTH, TTT
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an experiment consists of first rolling a die and then tossing a coin. …
B. \(\{(1, H), (1, T), (2, H), (2, T), (3, H), (3, T), (4, H), (4, T), (5, H), (5, T), (6, H), (6, T)\}\) ### Part (b)
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20. 7 / 8 points a special deck of cards has ten cards. four are green …
\(\frac{3}{10}\)
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28. 250% of 25 = 29. 106% of $50 = 30. 75.2% of 130 = 31. 0.5% of 60 = …
28. $62.5$ 29. $\$54$ 30. $97.76$ 31. $0.3$ 32. $0.48$ 33. $2.25$ 34. $19.5054$ million households 35. $\$19.95$
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a special deck of cards has ten cards. four are green (g), two are blue…
A and C \(\boldsymbol{\text{are}}\) mutually exclusive because they \(\boldsymbol{\text{cannot}}\) happen at the same time. Thus, \( P(A \text{ and } C) = \boldsymbol{\frac{0}{20}…
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a special deck of cards has ten cards. four are green (g), two are blue…
\( 0 \)
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a special deck of cards has ten cards. four are green (g), two are blue…
A and B are not mutually exclusive because they can happen at the same time. Thus, \(P(A \text{ and } B) = \frac{2}{5}\) (or \(\frac{8}{20}\) simplified to \(\frac{2}{5}\)).
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name ______________________________ date __________ period ______ lesso…
1. 2 2. 12 3. 18 4. 5 5. 150 6. 3.3 7. 110 8. 0.1 9. 42 10. 0.4 11. 108.54 12. 47.3 13. 319.64 14. 3.5 15. 11.7 16. 56.5 17. 115 18. 6.4 19. 64.8 20. 17.28 21. 11.25
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a special deck of cards has ten cards. four are green (g), two are blue…
\(\frac{1}{10}\)
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a special deck of cards has ten cards. four are green (g), two are blue…
{GH, GT, BH, BT, RH, RT}
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reasoning joanne cannot decide which of two washing machines to buy. th…
The sale price of the first washing machine is $\$347$ (rounded to nearest dollar). The sale price of the second washing machine is $\$356$ (rounded to nearest dollar). Joanne sho…
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6. (a) what number is 140 percent of 70? work the problem and then draw…
98 ### Diagram Description: ``` 100% (70) 40% (28) |-------------------|---------| <-----------------------------> 140% (98) ``` The entire bar represents 140% of 70, split into t…
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part (d) in words, explain what ( p(a mid b) ) represents. - ( p(a mid …
\(\frac{1}{7}\)
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question 19 (1 point) according to to scene 1, what warning does stella…
b. Stanley and his friends are not the types of people Blanche is accustomed to
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9 gregory buys a 5-oz packet of oregano. how much oregano will he have …
To solve these problems, we need the recipe for taco seasoning (amount of each ingredient, especially oregano and chili powder) which is missing. Please provide the taco seasoning…
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1. the defense budget was spent on halberds and other armor in the rati…
8000 farthings
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3. a scientist measured the weights of squirrels in two populations. th…
C. The data for the two populations have different skews. ### Question 4
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use the aleks graphing calculator to solve the equation. \\(2\\log(4 - …
# Explanation: ## Step1: Define the functions Let \( y_1 = 2\log(4 - x) \) and \( y_2=2 - x \). We need to find the \( x \)-values where the graphs of these two functions intersec…
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successive differences practice complete this assessment to review what…
6
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4 the table below shows the length of several roads. what is the combin…
22 miles
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respuesta usando fracciones de referencia. fracciones dadas a continuac…
\( 5\frac{1}{3}<5\frac{3}{4} \)
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in the following passage, the narrator, nick carraway, is recounting hi…
"In consequence, I'm inclined to reserve all judgments, a habit that has opened up many curious natures to me and also made me the victim of not a few veteran bores."
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sasha is swimming laps at the community pool. she starts in her lane at…
The first graph (top - left)
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jacob is the punter for his schools football team. during practice, he …
The graph in the bottom - left (the one with a small initial dip, then a parabolic rise to a peak, and then a parabolic fall) shows the height of the football above the ground ove…
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roy is riding the merry - go - round at the carnival while his mom wait…
The graph in the second (top - right) box, which shows a periodic pattern of distance increasing to a peak, decreasing to a trough, and repeating as time increases.
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solve. 1. a female rabbit gave birth to 6 babies. each baby weighed 4 o…
1. 24 ounces 2. The 128-ounce watermelon is heavier, by 16 ounces. 3. It weighs more than 1 pound, by 5 ounces. 4. 6 pints 5. 384 fluid ounces 6. 7 pints
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at first, her plan was to make him homemade magnets using cut - outs fr…
The most meaningful gifts don't have to cost a lot.
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marcy and her friends are playing hide - and - seek at recess. everyone…
The third graph (bottom - left one with a positive slope, then horizontal, then negative slope, starting from (0,0))
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pours down the drain. he sets the empty pot on the coffeemaker, adds gr…
The first graph (the top - left graph with the x - axis labeled "Time (min.)" and y - axis labeled "Volume (c)")
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which time interval has a greater rate of change? 2) which states popul…
1. Temperature rate of change: $\frac{-17}{6} \approx -2.83 \, ^\circ\text{F/hour}$ (the only interval provided, so it is the measured rate) 2. California's population grew more q…
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on saturday morning, mia biked to her friends house. she stayed there f…
The first graph (top - left) which has a line starting at the origin, increasing to a constant value, then decreasing back to the x - axis.
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jill is washing dishes. she fills the sink with warm water. after a whi…
The bottom - left graph (the third graph, with the sequence: rise to max, flat, drop (not zero), rise to max, flat, drop to zero)
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since mr. swenson last taught civics, the number of seats has increased…
Canada has added 3,000,000 people to its population. ### Second Question (Federal Representative in Canada)
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activity 3 solve these word problems. 1. margo is putting cookies in ba…
3 #### 2. Mini - Bus People
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full of water. then, she pours a steady stream of water on the flowers.…
The graph in the top right (the second graph in the top row) which shows volume starting high, decreasing linearly to 0, staying at 0 for a period, then increasing rapidly back to…
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how does the structure of the passage support the authors purpose? a it…
D. It presents both sides before stating the author’s stance, appealing to readers’ logic.
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powder. then he pours some lemonade into his cup, and puts the pitcher …
The top-left graph
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the graph shows the relationship between 2 variables. make up a real - …
Real-world situation: This graph models the total cost (in dollars) of buying packs of coffee, where the x-axis is the number of coffee packs, and the y-axis is the total cost in …
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jessica likes to run laps after school while she waits for her brother …
Top-left graph (first graph, starting at (0,0), peaking, returning to 0 repeatedly)
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9. shelly wants to tell her friend how large of a sale a local store is…
E. 40%
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solve these word problems. 1. margo is putting cookies in bags for her …
3 ### Problem 2:
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a game lasts \\(\frac{7}{8}\\) hours. kala played 5 of these games. for…
$\frac{35}{8}$ hours (or $4\frac{3}{8}$ hours)
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going into the final exam, which will count as two tests, sharon has te…
84
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4. the table below shows average milk prices at the local grocery store…
4. F. $2.07 5. D. 25% 6. H. $48,070.00
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find the following percentages of 72. answer attempt 1 out of 2 find 0%…
Find 0% of 72: \( 0 \) Find 100% of 72: \( 72 \) Find 50% of 72: \( 36 \) Find 25% of 72: \( 18 \) Find 75% of 72: \( 54 \)
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1. a car averages 27 miles per gallon. if gas costs $4.04 per gallon, w…
1. D. $408.04$ 2. D) 500%
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question find the following percentages of 52. answer attempt 1 out of …
Find 0% of 52: \( 0 \) Find 100% of 52: \( 52 \) Find 50% of 52: \( 26 \) Find 25% of 52: \( 13 \) Find 75% of 52: \( 39 \)
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in the morning, kinsley makes a pot of coffee. the pot fills quickly at…
The top-right graph (second graph)
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find the following percentages of 44. answer attempt 1 out of 2 find 0%…
Find 0% of 44: \( 0 \) Find 100% of 44: \( 44 \) Find 50% of 44: \( 22 \) Find 25% of 44: \( 11 \) Find 75% of 44: \( 33 \)
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tony rides his bike to school. this morning, he was running late, so he…
Bottom-right graph (the one with a steep upward line, flat horizontal segment, and a less steep downward line)
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what percentage of 80 is 32? a. 24% b. 32% c. 40% d. 45% i do objective…
c. 40%
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find the following percentages of 184. answer attempt 1 out of 2 find 0…
Find 0% of 184: \( 0 \) Find 100% of 184: \( 184 \) Find 50% of 184: \( 92 \) Find 25% of 184: \( 46 \) Find 75% of 184: \( 138 \)
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on sunday, manuel rode his skateboard from his house to the skate park …
The bottom - right graph (the fourth graph)
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question find the following percentages of 116. answer attempt 1 out of…
Find 0% of 116: \( 0 \) Find 100% of 116: \( 116 \) Find 50% of 116: \( 58 \) Find 25% of 116: \( 29 \) Find 75% of 116: \( 87 \)
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unit test each square below represents one whole. what percent is repre…
87.5%
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question video examples find the following percentages of 132. answer a…
Find 0% of 132: \( 0 \) Find 100% of 132: \( 132 \) Find 50% of 132: \( 66 \) Find 25% of 132: \( 33 \) Find 75% of 132: \( 99 \)
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high on a statue says the height of the statue is 49.5 feet. a tourist …
(a) The completed proportion is $\boldsymbol{\frac{x}{49.5} = \frac{1}{3.3}}$ (or $\frac{1}{3.3} = \frac{x}{49.5}$) (b) $\boldsymbol{15}$ meters
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journal define percent in your own words. then, describe how to write f…
### Problem 1: Labeling the Number Line #### Step 1: Analyze the first missing value (fraction for 0.4) The decimal is 0.4. To convert to a fraction, we know that 0.4 = $\frac{4}{…