统计与概率
数据分析、概率分布、假设检验与统计方法。
-
the display on a calculator screen is shown below. 7.703555ee-8 what nu…
C. It represents 0.00000007703555
-
which shows the expression below simplified? 0.00039 + (1.9 × 10⁻⁶) a. …
A. \(3.919\times10^{-4}\)
-
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)
-
7. a 180-pound person burns about 88.5 calories every 15 minutes while …
The 180 - lb person has a higher rate. But for the blank: A 120 - lb person burns \boxed{1.97} (approx) less, but the problem says "more" – maybe a typo. Wait, no, maybe I messed …
-
two petri dishes were on the desktop in dr. mcfarlarians lab. dish a ha…
C. \(3.946\times10^{-11}\) cm
-
at a carnival game, it cost robert $2 to toss 4 rings. fill out a table…
For the first empty cell (Dollars when Tosses = 2): $1$ For the second empty cell (Tosses when Dollars = 4): $8$
-
solve the following word problem. then look at the work. try to determi…
A) The incorrect operation is performed.
-
the gardening club is constructing a stone retaining wall on a sloped a…
D. Marcus is correct because \( f(5) = 8.75 \) reveals that the input of 5 days will show a height of 8.75 feet.
-
samar sprints on a treadmill for 3 minutes. let f be the function that …
B. The inequality \( f(3) > f(5) \) means that Samar's heart rate at 3 minutes is greater than his heart rate at 5 minutes.
-
6. the 40 tiles shown at the right were put into a sack, and the sack w…
(for part a): - As a fraction: $\frac{36}{40}$ - As a fraction in lowest terms: $\frac{9}{10}$ - As a percent: $90\%$ - As a decimal: $0.9$ ---
-
chapter 4 homework score: 40/110 answered: 4/11 progress saved done que…
$\frac{1}{6}$
-
26. usain bolt ran the 100 metre in 9.58 seconds. work out his average …
\( \approx10.44 \) metres per second
-
practice 1. the cross country team practices by jogging on the town’s s…
## Part a: The completed table is: | \( x \) | \( y \) | | --- | --- | | 1 | 6 | | 2 | 12 | | 3 | 18 | ## Part b: The ordered pairs \( (1, 6) \), \( (2, 12) \), and \( (3, 18) \) …
-
25. a middle distance athlete runs at an average speed of 4 metres per …
It will take her 750 seconds (or 12.5 minutes). The calculation is based on the formula \(t=\frac{d}{v}\) where \(d = 3000\) m and \(v=4\) m/s, so \(t=\frac{3000}{4}=750\) s.
-
technology takeover (1) take a look around you. (2) what is it you see?…
C. We can see one another’s expressions and interpret tones in our speech.
-
directions: use this information to answer parts a and b. reiko’s goal …
From top (or left - to - right for the boxes related to the inequality structure \( 175 + 35s \geq 800 \)): - The first box (with \( s \)): 35 - The second box (operation): \( + \…
-
24. lorna runs 50 kilometres in 2 hours and 30 minutes. calculate lorna…
20
-
practice 1. find the pattern and then write a rule and an equation that…
### Problem 1 Table Completion: For \( x = 16 \), \( y = 8 \); for \( x = 20 \), \( y = 10 \). ### Problem 2 Table Completion: For \( x = 1 \), \( y = 7 \); \( x = 2 \), \( y = 13…
-
23. how long would it take to travel a distance of 108 miles at an aver…
2.25 hours (or 2 hours and 15 minutes)
-
22. a train travels the distance from san antonio to houston in texas i…
60
-
21. find the speed of a train that travels 243 kilometres in 2 hours an…
The speed of the train is 108 kilometres per hour.
-
technology takeover (1) take a look around you. (2) what is it you see?…
D. Seeing one another’s expressions, we interpret tones in our speech.
-
feeling overwhelmed in debt, denae reached out to a credit counselor, a…
D. Denae should conduct the means evaluation for bankruptcy qualification.
-
technology takeover (1) take a look around you. (2) what is it you see?…
B. While there are benefits to using technology, the disadvantages outweigh the advantages.
-
b) le réservoir d’une autre lampe a une capacité de 0,16 l. peut-on le …
To determine if the reservoir can be filled 27 times, we need the **bottle’s capacity** (from the previous part, not shown here). 1. Calculate total volume needed: \( 0.16 \, \tex…
-
which are two steps to take to get your finances in order and avoid fil…
The second box: make a budget and seek financial counseling
-
millie comes to america (1) millie was a delightful little girl full of…
B. Millie never knew her birth parents; she was proud and beyond happy to have Kevin and Judy Jensen as her mom and dad.
-
20. claire took part in a cross country race and completed the course i…
The distance Claire ran was 21 kilometers.
-
challenge a customer at a clothing store is buying a pair of pants and …
B. \(0.8n + s\), D. \(n - 0.20n + s\)
-
millie comes to america (1) millie was a delightful little girl full of…
C. Change sees to saw and does to did
-
eduardo is feeling overwhelmed with bills and considering filing for ba…
B. Eduardo should consider debt consolidation.
-
19. in a baseball match, a batter runs around all of the bases to compl…
The batter’s average speed is 9 metres per second.
-
the vet says that georges cat milo has to lose weight, so george is goi…
The inequality is \( 22 - 0.25w < 18 \) (drag 22, \( - \), 0.25, \( w \), \( < \), 18 into boxes as \( 22 - 0.25w < 18 \)).
-
(1) millie was a delightful little girl full of life and dreams. (2) sh…
C. So very nervous was she.
-
jed the giant jed the giant was never scared. he was the biggest, meane…
scale factor
-
independent variables out how the values of variables ch other. y the d…
Dependent variable: \( d \) (distance traveled), Independent variable: \( s \) (speed) ### Problem 2:
-
18. if allan swims at an average speed of 2 metres per second, how long…
It will take Allan 100 seconds to complete the 200 - metre race.
-
what should a person consider before filing for bankruptcy? filing for …
The Rightmost Option (Filing for bankruptcy requires assessing the financial status and potential for financial recovery)
-
une bouteille contient 4,2 l d’huile à lampe a) combien de fois peut - …
10.5 (or 10 if considering full fills, but mathematically it's 10.5)
-
understand dependent and independent variables quick review think about…
For \( x = 16 \), \( y = 8 \); for \( x = 20 \), \( y = 10 \)
-
millie comes to america (1) millie was a delightful little girl full of…
C. So very nervous was she.
-
14. a light aircraft flight from sunderland to london takes 1 hour and …
1.5
-
practice problems asks their students whether they studied for a quiz, …
The 86% represents the percentage of students who studied for the quiz and passed it.
-
15. kristin runs from 3.50 pm to 4.20 pm at an average speed of 7 kilom…
3.5 kilometres
-
13. a vehicle travelled non-stop for 684 miles at an average speed of 6…
11 hours and 24 minutes
-
12. pierre cycles at 4 miles per hour and travels a distance of 13 mile…
The journey takes \(\boldsymbol{3.25}\) hours (or 3 hours and 15 minutes).
-
what does the word \hospitable\ mean? * ○ without a home ○ friendly and…
B. friendly and welcoming
-
temperatures (in °f) 105 117 111 113 111 109 106 104 107 102 103 100 11…
(a) Frequencies: 98 to 102: 4; 103 to 107: 5; 108 to 112: 4; 113 to 117: 2. (b) Histogram bars: 98-102 (height 4), 103-107 (height 5), 108-112 (height 4), 113-117 (height 2).
-
consider the inequality $3x + 7 \\geq 25$. complete the following word …
First box (total goal): 25; Second box (books already read): 7; Third box (books per month): 3; The word for the inequality relationship: at least
-
(in minutes) 26 29 18 16 33 19 18 34 35 27 31 23 31 24 30 28 (a) comple…
For part (a), the frequencies are: 16 to 19: 4 20 to 23: 1 24 to 27: 3 28 to 31: 5 32 to 35: 3 (For the histogram, draw bars with these heights for each class interval.)
-
10 down: to house a person or group of people question 15 6 pts 11 down…
Accommodate (assuming the blank's length matches; if it's a crossword, adjust based on grid, but the meaning is "to house a person or group"). ### For 11 Down:
-
the mass of 1 candle is 8 grams. based on this information, which state…
C. The mass of 4 candles is 32 grams.
-
number of miles 24 21 25 20 20 4 9 3 11 3 23 22 12 15 10 12 25 10 (a) c…
For "2 to 7": 3 For "8 to 13": 6 For "14 to 19": 1 For "20 to 25": 8 (For the histogram, use these frequencies: x - axis classes, y - axis frequencies 3, 6, 1, 8. Draw bars with h…
-
alex and zoey are considering filing for bankruptcy. they passed the me…
A. Filing for bankruptcy will impact their credit history, B. Filing for bankruptcy may hinder employment offers, D. Filing for bankruptcy may trigger higher interest rates
-
the table shows a list of numbers and the results after applying the ru…
- The digits in the ones place: decrease by 1 - The digits in the tens place: increase by 1 - This happens because adding 9 is the same as: adding 10 and subtracting 1
-
Question was provided via image upload.
4 (corresponding to the option with text "4")
-
a school principal had his students vote for a new school mascot. one -…
More students voted for a bulldog than a falcon.
-
parables in art choose a parable about god. write its title and message…
### Parables in Art (Example Entries): - **God - Parable**: Title: The Hidden Treasure God: The one who values the kingdom of heaven above all, inviting people to seek and find th…
-
directions: use this information to answer parts a and b. x - 3.3 > 8.7…
\( x>12 \)
-
using the means test to make a conclusion trina’s income is below the m…
She will pass the means test and should file for Chapter 7 bankruptcy.
-
use the drop - down to complete each statement. the income test compare…
First dropdown: means test Second dropdown: falls below Third dropdown: creditors
-
which number is the greatest? 1.2 1.3 1.235 1.003
B. 1.3 (assuming options are labeled A:1.2, B:1.3, C:1.235, D:1.003)
-
describing how to qualify for bankruptcy use the drop - down to complet…
The first drop - down should be "means test".
-
to make a number pattern, yuan used the rule \add 5,\ with a whole numb…
The statement "The numbers alternate between even and odd" must be true. (Assuming the options are labeled as: Top - left: "The numbers alternate between even and odd", Top - righ…
-
renee has 13 rings and 48 bracelets. she has a small box for each item.…
61 (corresponding to the option with 61)
-
rachel says that graph r has a greater constant of variation than graph…
Rachel is not correct; Graph S is steeper than Graph R.
-
in spanish, the word blanco means white. what english word do you think…
B. Blank
-
a home cleaning service takes more time to clean larger spaces. the tab…
80 minutes
-
2. sales the table shows the sales of a health and beauty supply compan…
a. The equation of the best - fit line is \( \boldsymbol{y = 9.32x + 1.58} \) b. The correlation coefficient \( r\approx\boldsymbol{0.995} \), which indicates a very strong positi…
-
2. sales the table shows the sales of a health and beauty supply compan…
a. The equation of the best - fit line is \( y = 8.4x+3.42 \) b. The correlation coefficient \( r\approx0.998 \). This value is very close to 1, which indicates a very strong posi…
-
study the data set shown. then answer the questions below. 42 50 51 53 …
For the first blank (no change to range): \( 50 \) (any number between 42 and 68 inclusive is correct) For the second blank (change to range): \( 70 \) (any number less than 42 or…
-
3. select the most appropriate unit for each situation. rate of walking…
- Rate of walking to school: $\boldsymbol{\frac{\text{feet}}{\text{minute}}}$ - Rate of painting a bedroom wall: $\boldsymbol{\frac{\text{square feet}}{\text{minute}}}$ - Rate of …
-
what range is shown in the table? x: 2, 1, 3, 2, 4 y: -2, 7, 7, 7, 3 op…
\(\{-2, 3, 7\}\)
-
question 20 of 20 what does it mean if there is an asterisk next to the…
A. You meet the NMSC's requirements.
-
test prep a truck rental company rents a truck for a one - time fee of …
\(\frac{110}{3}\) (or approximately \( 36\frac{2}{3} \))
-
4. order the decimals from greatest to least. 36.598 36.799 36.597 36.7…
\(36.799, 36.797, 36.598, 36.597\)
-
measures of spread - range - item 4823 study the data set shown. then a…
First blank (number that doesn't change range): 63 (or other non - min, non - max numbers like 54, 68, 85, 92 etc.) Second blank (number that changes range): 53 (or 97)
-
what is the range of the table? (table with x and y values: x: 0, 2, 3,…
\(\{-4, 0, 1, 3\}\) (the second option: \(\{-4, 0, 1, 3\}\))
-
you and your friends play a game of miniature golf. on the first hole, …
5
-
b. solve your equation, showing all steps. clearly demonstrate the use …
The solution of the equation \( 5.75m = 230 \) (using inverse operation of division) is \( m = 40 \). For part C:
-
miyu has 36 grapes to share with her friends. she wants to make sure ea…
8 people
-
which of these is a ratio table? first table: a | b 1 | 5 2 | 6 3 | 7 s…
1 & 2 & 3 & 5 & 6 & 7 \\ 1 & 2 & 3 & 4 & 5 & 7 \\ 1 & 2 & 3 & 1 & 4 & 9 \\ 1 & 2 & 3 & 2 & 4 & 6
-
q. what is the range?
The range is 5.
-
what is the range of the following relation: (9,-2)(4,3)(8,10)(-4,8) op…
-2, 3, 8, 10 (the last option among the given choices)
-
scenes iii - iv by william shakespeare as you read, highlight unfamilia…
cleverly
-
the tragedy of hamlet, prince of denmark, act i, scenes iii-iv by willi…
They tell me you and Hamlet are spending a lot of time together.
-
1. which of the following shows 2.684 rounded to the nearest hundredth?…
A. 2.68
-
question nathan is deciding between two landscaping companies for his p…
Company A is cheaper than Company B when \( t < 8 \) hours.
-
paul has 26 subscribers to his video channel. he says this is exactly 4…
No, because 4 is not a factor of 26. (The option: No, because 4 is not a factor of 26.)
-
mlet, act i, scenes iii-iv the tragedy of hamlet, prince of denmark, ac…
A. "a toy", C. "not permanent", E. "not lasting"
-
give the range of the set of ordered pairs (2, 11), (9, -3), (7, 21), (…
\(\{11, - 3,21,6\}\) (corresponding to the third option in the list of choices)
-
the tragedy of hamlet, prince of denmark, act i, scenes iii-iv by willi…
"friends"
-
8. what name describes an inventory practice that essentially means tha…
D. FIFO
-
based on the given situations, determine whether each debtor may or may…
Irma: may not pass the means test. Marcus: may pass the means test.
-
**moll flanders** **given quote** my true name is so well known in the …
B. that Moll has been arrested and charged with many crimes during her life
-
directions: after reading \seeking shelter\ on pages 18-23 in this issu…
D. Someone without stable or secure housing ### Question 2
-
question #5 keiths middle school cafeteria repeats its menu every 12 da…
B. 48 days
-
drag each pair of numbers to show if their greatest common factor (gcf)…
# Explanation: ## Step1: Find GCF of 12 and 30 Factors of 12: \(1, 2, 3, 4, 6, 12\) Factors of 30: \(1, 2, 3, 5, 6, 10, 15, 30\) Common factors: \(1, 2, 3, 6\) GCF: \(6\) (greater…
-
identify the domain of the following relation: chart with x values -6, …
-6, 0, 2, 4
-
on a snow day, caroline created two snowmen in her backyard. snowman a …
15 inches