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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read the excerpt from sinners in the hands of an angry god. the devil i…
A. devour
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the data represent the number of cans collected by different classes fo…
a. Mean: 18.5 b. Median: 16 c. Mean decreased from 18.5 to approximately 15.45, median decreased from 16 to 14.
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from unit 1, lesson 11 what is the iqr? number of branches on 10 - year…
A. 5 branches
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5 select all the distribution shapes for which the mean and median must…
A. bell - shaped D. symmetric E. uniform
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what differences would you expect to see when comparing the dot plots o…
Differences in central tendency, spread, shape, and clustering.
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the mean of data set a is 43.5 and the mad is 3.7. the mean of data set…
Data set B shows greater variability because its MAD (4.1) is larger than the MAD of data set A (3.7).
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6. how is the storys first sentence - an exclamation - verbally ironic?…
6. Without the actual first - sentence, specific analysis cannot be provided. But generally, if the first - sentence says something like "What a wonderful day!" when it's clearly …
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jasmine surveyed her friends to find out what types of books they read …
23
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3 which of these best estimates the standard deviation of points in a c…
A. 5 points
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the rate of inflation measures the percentage increase in the price of …
$101.20$
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question 10 which one of the following is used as resource for price an…
C. R.S. Means
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here is a data set: 1 2 3 3 4 4 4 4 4 5 5 6 7 a. what happens to the me…
a. The mean increases and the standard deviation increases. b. The median is not affected by the outlier (\(70\)) while the mean is pulled in the direction of the outlier, so the …
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lesson 12 practice 1 the shoe size for all the pairs of shoes in a pers…
a. 7 b. 0
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how many pairs of shoes does a typical teenage boy own? to find out, a …
34
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the roster of the dallas cowboys professional football team in a recent…
36
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question 18 of 20 here are data on the number of calories per serving f…
120
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determine the meaning of the bold idiom used in the sentence below. i t…
Do not interfere with a situation that is not causing a problem.
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determine the meaning of the bold idiom used in the sentence below. aft…
The speaker is nearing the end of a long and difficult experience.
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determine the meaning of the proverb below. a penny saved is a penny ea…
It is useful to save money that you already have.
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interpreting a quote: what did james madison mean when he said, \the ac…
Madison meant that when all legislative, executive, and judicial powers are accumulated in the same hands (whether of one, a few, or many, and however they are appointed), it cons…
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determine the meaning of the bold idiom used in the sentence below. the…
The speaker is very enthusiastic about the app.
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determine the meaning of the proverb below. sticks in a bundle are unbr…
B. Groups are stronger than individuals.
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for questions 6 to 17, show your working clearly and write your answers…
60%
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determine the meaning of the bold idiom used in the sentence below. whe…
The speaker connected themselves with people who could help them achieve their dreams.
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determine the meaning of the proverb below. the man who removes a mount…
C. Small actions at the start can lead to large results.
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1 - 81. your team is in charge of games at the cpm amusement park. one …
a. Make the number of teddy bears equal to the number of non - teddy stuffed animals in the bin. b. Options include adding 4 teddy bears and removing 4 non - teddy stuffed animals…
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determine the meaning of the bold idiom used in the sentence below. wer…
The speaker would like to go to dinner at a different time in the future.
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determine the meaning of the proverb below. people who live in glass ho…
C. People should not criticize others for a fault that they also have.
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a persons metabolic rate is the rate at which the body consumes energy.…
\(s_x = 244.17\) The metabolic rate of the seven men who took part in a study of dieting typically varies from the mean by about \(s_x\) calories.
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damian is given the following conjecture. how can he determine whether …
E. There are too many numbers whose digits fit the given pattern for testing each to be practical. The four smallest such numbers are 121, 242, 363, 484. Each of these is divisibl…
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determine the meaning of the bold idiom used in the sentence below. jac…
The speaker is skeptical about Jacob's stories.
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here are the foot lengths (in centimeters) for a random sample of seven…
\(2.52\) The correct interpretation of the standard deviation is: The foot - length for a random sample of seven 14 - year - olds from the United Kingdom typically varies from the…
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the figure displays computer output for data on the amount spent by 50 …
The amount of money spent by these 50 shoppers typically varied by about $21.70 from the mean of $34.70.
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here is a dotplot of the amount of fat (to the nearest gram) in 12 diff…
The fat content of these 12 hamburgers typically varies by about 9.06 grams from the mean of 22.83 grams.
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1 - 80. tom keeps all of his favorite marbles in a special leather bag.…
a. $\frac{1}{3}$ b. 28
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the distribution of file size has a mean of $\bar{x}=3.2$ megabytes and…
The size of these 18 files typically varies by about 1.9 megabytes from the mean of 3.2 megabytes.
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the table shows the number of students in the senior class and the numb…
11. Each year, about 65% of the senior class have a driver's license. 14. 273
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question 7 of 20 the standard deviation of the distribution of house ag…
The age of the houses in the sample typically varies by about 16 years from the mean age.
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calculate the standard deviation of the numbers 9, 14, and 19. $s_x=squ…
$5$
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here are the travel times in minutes for 15 workers in north carolina, …
$20$
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marbury v. madison (1803) supreme court struck - down: end of the line …
A. Change would require a constitutional amendment, but there was not enough support. B. Congress changed the law to make it constitutional. C. Congress changed the law to make it…
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14. the average of 5 distinct scores has the same value as the median o…
# Explicación: ## Paso 1: Encontrar la mediana El promedio de los 5 puntajes es $\frac{\text{sumatoria de los 5 puntajes}}{5}$. Sabemos que la sumatoria de los 5 puntajes es 420. …
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a fire department in a rural county reports that its response time to f…
\(38.08\)
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marbury v. madison (1803) supreme court struck - down: end of the line …
A. Change would require a constitutional amendment, but there was not enough support. B. Congress changed the law to make it constitutional. C. Congress changed the law to make it…
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in 2019, the distribution of golfer lexi thompsons driving distance had…
$16.67$
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the army reports that the distribution of head circumference among sold…
The smallest head size: 20.99 inches The largest head size: 24.61 inches
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question 7 of 10 > scores on the wechsler adult intelligence scale (a s…
(a) 21.95% (b) 161.25
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question 6 of 10 a tennis ball machine fires balls a distance that is a…
$68.026$
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question 5 of 10 > the lengths of footlong sub sandwiches at a local su…
$11.87$
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question 2 of 10 at fast - food restaurants, the lids for drink cups ar…
(a) $3.9965$ (b) increase
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at fast - food restaurants, the lids for drink cups are made with a sma…
(a) 0.0129 (b) decreasing; decrease
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question 10 of 10 in the united states, egg sizes are set by the depart…
(a) $0.2206$ (b) $29.85\%$
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in the class of 2019, more than 1.6 million students took the sat. the …
4.2700%
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question 9 of 10 > in the class of 2019, more than 1.6 million students…
$4.2700\%$
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question 8 of 10 > in baseball, a player’s batting average is the propo…
$0.1251$
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question 7 of 10 in the class of 2019, more than 1.6 million students t…
$0.3272$
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question 6 of 10 the weights of 9 - ounce bags of a particular brand of…
$33.6400\%$
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morgans work: -2(6a + 5)-2 = 4(2 - 4a) -12a-10 - 2=8 - 16a -12a - 12=8 …
Morgan made a mistake when distributing on the left. She should have gotten \(-12\) instead of \(-8\) after combining the constant terms from the distribution.
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question 5 of 10 a study investigated about 3000 meals ordered from chi…
(a) 0.2119 (b) 28.98%
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question 3 of 10 according to a health information website, the distrib…
$0.1498$
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the availability of consumer goods and the means to buy them most led t…
the consumer culture
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hamiltons economic plans led to differences over the meaning of the con…
States must retain their power to avoid the problems experienced with England.
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question 2 of 10 > in the class of 2019, more than 1.6 million students…
$0.0642$
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question 1 of 10 in baseball, a players batting average is the proporti…
3.6500%
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7. erin reaches into a bag, recorded the color of the marble she picked…
a) $\frac{2}{5}$ b) $\frac{7}{10}$ c) 18
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no additional details were added for this assignment. \the very idea of…
Civic duty requires obedience to the government.
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there are 45 green, 13 white, 27 purple and 11 blue gumballs in the gum…
a) $\frac{11}{96}$ b) $\frac{9}{32}$ c) $\frac{19}{48}$
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place the characteristics of the new england colonies under the colony …
Maryland: Attracted both Protestant and Catholic settlers; Many Protestants, Catholics, and Jews came to gain religious freedom; Sir George Calvert (Lord Baltimore); Founded as a …
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question 10 of 10 > the dotplot shows the epa highway gas mileage estim…
The distribution of highway gas mileage is not approximately normal because the distribution is skewed to the right.
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question 9 of 10 > given are the lengths (in feet) of 44 great white sh…
Yes, because the distribution is roughly symmetric.
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question 8 of 10 > the distribution of heights in a population of women…
Mean: 65 inches Standard Deviation: 3 inches
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question 7 of 10 the heights of u.s. adult men can be modeled by a norm…
(a) 2.5 (b) 0.815
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question 6 of 10 > the weights of 9 - ounce bags of a particular brand …
(a) 16 (b) 0.8385
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a) what is the favorite subject for mrs. higgins class? b) what is the …
c) $\frac{5}{28}$ d) $\frac{3}{14}$ e) $\frac{19}{28}$
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2. analyze the context of the passage to determine the meanings of the …
| WORD | CONNOTATION | DENOTATION | SIMILARITIES AND DIFFERENCES | | ---- | ---- | ---- | ---- | | resolute | Positive, shows determination | Firmly determined | All related to fi…
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place the characteristics of the new england colonies under the colony …
Maryland: - Attracted both Protestant and Catholic settlers. - Many Protestants, Catholics, and Jews came to gain religious freedom. - Sir George Calvert (Lord Baltimore). - Found…
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taylors work solving an equation is shown here. do you agree with her w…
Taylor made a mistake when combining like terms.
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3. reasoning if the ratio $\frac{y}{x}$ is the same for all related pai…
$y$ is directly proportional to $x$.
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mrs. higgins surveyed her students, asking what their favorite subject …
a) Science and Phys. Ed. b) Math c) \(\frac{5}{28}\) d) \(\frac{3}{14}\), because we sum the number of students who like Art and FACS and divide by the total number of students.
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the box - and - whisker plot below represents some data set. what is th…
50
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3. what is the mode of the data set? data set: 1, 2, 3, 4, 4, 4, 4, 5, …
3. a. 4 4. b. The data set contains an extreme data value. 5. a. 16
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b) if you flip a coin twenty times and get heads fourteen times: what i…
Experimental probability of heads: $\frac{7}{10}$ Experimental probability of tails: $\frac{3}{10}$ Theoretical probability of heads: $\frac{1}{2}$
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b) if you flip a coin twenty times and get heads fourteen times: what i…
Experimental probability of heads: $\frac{7}{10}$ Experimental probability of tails: $\frac{3}{10}$ Theoretical probability of heads: $\frac{1}{2}$ Greater fraction: $\frac{6}{7}$
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the term facilitate means to help. true false rewatch
True
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homework answer 1 add and subtract the decimal numbers. round the answe…
## Activity 1 1. 175.1 2. 9.8 3. 368.8 4. 188.9 ## Activity 2 1. 0.09, 0.1, 0.19 2. 0.005, 0.07, 0.75 3. 0.031, 1.03, 1.23 4. 2.00, 2.6, 2.9 5. 0.089, 0.09, 0.098 6. 17.04, 17.34,…
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how did innovations in manufacturing lead to improvements in transporta…
Goods were produced efficiently and needed more efficient transportation.
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activity 1 add and subtract the decimal numbers. round the answers to t…
## Activity 1 1. $145.1$ 2. $9.8$ 3. $358.8$ 4. $188.9$ ## Activity 2 1. $0.09, 0.1, 0.19$ 2. $0.005, 0.07, 0.75$ 3. $0.031, 1.03, 1.23$ 4. $2.06, 2.6, 2.9$ 5. $0.089, 0.09, 0.098…
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correct the text by inserting one comma. (note: in this skill, serial c…
While the new regulations were simply meant to prevent the spread of food - borne illness, many chefs found them burdensome.
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homework: section 4.3 score: 2/15 answered: 2/15 question 3 a baseball …
$0.0689$
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question 1 why were the activities and proceedings of the convention ke…
Question 1: A. Instead of revising the Articles of Confederation, they were writing a new structure of government Question 2: B. States with large populations believed they should…
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linear equations w/ distribution (lev 2) score: 3/5 penalty:none questi…
$x = 9$
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choose the correct spelling of the word. my golden retrever retriever k…
1. d. It changes from a noun to an adjective. 2. 1. is 2. am 3. are 4. seem 5. seems 3. 1. a. an ideal place 2. c. in a concise way
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the distance a boy travels while hiking is a function of how fast he hi…
8 The ordered - pair is $(2,8)$. The meaning of $h(2) = 8$ is that when the boy hikes for 2 hours at a speed of 4 miles per hour, the distance he travels is 8 miles.
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homework: section 4.3 score: 1/15 answered: 1/15 question 2 american ai…
1. \(0.999847\) 2. \(0.998683\) 3. \(0.184\)
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linear equations w/ distribution (lev 2) score: 1/8 penalty: none quest…
$x = 3$
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linear equations w/ distribution (lev 2) score: 0/5 penalty:none questi…
$x = 1$
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according to masterfoods, the company that manufactures m&ms, 12% of pe…
Exactly 4 red: 0.0009 3 or 4 red: 0.0143 At most 4 red: 1.0000 At least 4 red: 0.0009 Expected number of red: 0.6 Standard deviation: 0.7266
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select the word that means a main character. the 2016 pulitzer prize fo…
protagonist
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select the word that means very sad and hopeless. aspiring writers and …
despondent
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homework: section 4.2 score: 14/15 answered: 14/15 question 15 x p(x) 0…
a. $1.50$ b. $1.24$