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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an airliner carries 400 passengers and has doors with a height of 72 in…
$1.0000$
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an airliner carries 400 passengers and has doors with a height of 72 in…
\(0.8577\)
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students in a science class took a final exam. the box - and - whisker …
(a) \(77.5\) (b) \(95\) (c) \(80\)
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civics chapter 3 section 4 homework assignment what does popular sovere…
The government can only govern as long as the people consent.
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civics chapter 3 section 4 homework assignment what does the full faith…
Each state much honor the laws of the other states.
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answer the following. (a) the standard normal curve is graphed below. s…
\(0.0668\)
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answer the following. (a) the standard normal curve is graphed below. s…
\(0.5000\)
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answer the following. (a) the standard normal curve is graphed below. s…
\(0.6915\)
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a realtor is displaying the histogram below, which summarizes the perce…
\(27.9\)
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home realty claims that the mean selling time of a detached, residentia…
\(22.1\)
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it seems these days that college graduates who are employed full - time…
\(46.2\)
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in the venn diagram below, b and c are events in the sample space s. (n…
For part (a), shade the entire area of circle \( B \) and circle \( C \). For part (b), shade the overlapping area of circle \( B \) and circle \( C \).
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a magazine provided results from a poll of 1000 adults who were asked t…
$0.01$
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in the venn diagram below, a and d are events in the sample space s. (n…
- (a) Shade the entire area of circle \(A\) and circle \(D\). - (b) Shade the area of the rectangle \(S\) that is not inside circle \(A\).
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in the venn diagram below, a and b are events in the sample space s. (n…
For part (a), shade the region of \(S\) not in \(B\). For part (b), shade the overlapping region of \(A\) and \(B\).
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many breakfast bars were sampled and found to have a mean weight of 9 o…
Approximately \(14.01\%\) of the breakfast bars weigh more than \(9.14\) oz.
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in the venn diagram below, a and c are events in the sample space s. (n…
For part (a), shade the overlapping region of circles \(A\) and \(C\). For part (b), shade all of circle \(A\) and all of circle \(C\) (including their overlap).
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in the venn diagram below, b and c are events in the sample space s. (n…
For part (a), shade the overlapping region of circles \( B \) and \( C \). For part (b), shade the region of \( S \) outside circle \( B \).
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(a) which histogram is the closest to being bell - shaped? histogram a …
(a) Histogram A (b) Histogram C (c) Histogram A (d) Histogram B
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(a) which histogram is the closest to being bell - shaped? histogram a …
(a) Histogram B (b) Histogram A (c) Histogram C (d) Histogram B
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a psychologist looking at a graph of iq scores around the world notices…
D. The mean, the median, and the mode will be the same value.
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a particular bird in the amazon rainforest has an average bone length o…
Approximately \(19.77\%\) of the birds have a bone length of less than \(13.1\)mm.
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(a) which histogram is the closest to being uniform? histogram a histog…
(a) Histogram B (b) Histogram C (c) Histogram A (d) Histogram A
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an elevator has a placard stating that the maximum capacity is 3600 lb—…
a. \(0.8212\) b. \(1.0000\) c. D. No, because there is a good chance that 25 randomly selected adult male passengers will exceed the elevator capacity.
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(a) which histogram is best described as bimodal? histogram a histogram…
(a) Histogram A (b) Histogram C (c) Histogram B (d) Histogram C
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a particular bird in the amazon rainforest has an average bone length o…
\(81.5\%\)
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an elevator has a placard stating that the maximum capacity is 3600 lb …
a. \(0.9357\) b. \(1.0000\) c. B. No, because there is a good chance that 25 randomly selected adult male passengers will exceed the elevator capacity.
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an elevator has a placard stating that the maximum capacity is 3600 lb-…
\(0.8212\)
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(a) which histogram is best described as bimodal? histogram a histogram…
(a) Histogram A (b) Histogram B (c) Histogram A (d) Histogram C
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assume that the amounts of weight that male college students gain durin…
\(0.4874\)
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assume that the amounts of weight that male college students gain durin…
\(0.2576\)
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(a) which histogram is best described as unimodal? histogram a histogra…
(a) Histogram B (b) Histogram C (c) Histogram A (d) Histogram B
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in a normal distribution of scores on assessments like those for intell…
D. It contains the middle 68% of the distribution.
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after examining a child at his 2 - year checkup, the boys pediatrician …
The correct statement should be: He is 0.75 standard deviations above the mean in height for 2 - year - olds in the country.
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shapes of discrete distributions histogram a histogram b histogram c (a…
(a) Histogram B (b) Histogram C (c) Histogram A (d) Histogram B
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assume that females have pulse rates that are normally distributed with…
B. Since the original population has a normal distribution, the distribution of sample means is a normal distribution for any sample size.
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(a) which histogram is best described as bimodal? histogram a histogram…
(a) Histogram C (b) Histogram B (c) Histogram B (d) Histogram A
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a particular iq test is standardized to a normal model, with a mean of …
b) \(52\) and \(148\) c) \(0.15\) d) \(13.5\)
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(a) which histogram is skewed to the left the most? histogram a histogr…
(a) Histogram C (b) Histogram A (c) Histogram B (d) Histogram A
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assume that females have pulse rates that are normally distributed with…
\(0.5948\)
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a particular iq test is standardized to a normal model, with a mean of …
The central 99.7% of the IQ scores are between \(52\) and \(148\).
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assume that adults have iq scores that are normally distributed with a …
\(0.0367\)
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according to a recent publication, the mean price of new mobile homes i…
a. For all possible sample mean prices (when \(n = 100\)), the mean is \(\$62200\) and the standard deviation is \(\$730\). This means that if we take many samples of size \(n = 1…
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assume that thermometer readings are normally distributed with a mean o…
The probability of the reading being between \(0.25\) and \(1.25\) is \(0.2957\)
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assume that thermometer readings are normally distributed with a mean o…
The probability that the thermometer reading is between \(0.25\) and \(1.25\) is \(0.2957\). For the sketch, option C is correct as it shows the area between \(z = 0.25\) and \(z=…
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find the indicated critical value. $z_{0.05}$ $z_{0.05}=\\square$ (roun…
\( 1.645 \)
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find the indicated iq score. the graph to the right depicts iq scores o…
\(120\)
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assume that adults have iq scores that are normally distributed with a …
\(0.8849\)
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assume that a randomly selected subject is given a bone density test. t…
The probability is \(0.2451\)
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fill in the blank. finding probabilities associated with distributions …
finding the area of the shaded region representing that probability.
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fill in the blank. if a sample size is less than ______, the sample siz…
B. 30
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why did buying on margin contribute to the great depression? buying on …
Buying on margin caused stocks to be valued at a price higher than their actual value.
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week 13 day 4 1 18÷3= 2 34)12,954 3 using the spinner below, what is th…
1. \(6\) 2. \(381\) 3. \(\frac{1}{2}\)
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26. find the angle subtended by the sector for pineapples. a. 66° b. 63…
A. \(66^{\circ}\)
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planting various fruits as shown below use the information above to ans…
26. B. \(63^{\circ}\) 27. C. \(18\)
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analyzing a memoir pre - test complete 1 2 3 4 5 6 which statement defi…
It is a word's dictionary meaning.
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analyzing idea development in an essay quiz complete time remainin 54:1…
Yael gives details in chronological order, which supports her central idea by showing development.
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examine the data below for a stalk of corn. use logarithmic regression …
\(a=-20.87\), \(b = 19.54\)
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a computerized video display begins with one polygon on the screen. add…
24
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review the fourth paragraph. many contemporary halloween traditions can…
how Halloween costumes have evolved to the present day
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pregunta 13 (2 puntos) (01.01 lc) denotation is language that communica…
b. False
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this graph shows how the total amount of paper francos office has recyc…
50
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this graph shows how the total number of comic books cole has in his co…
\(300\)
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this graph shows how the time required to ring up a customer is related…
10
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this graph shows how the amount of dough steven has prepared is related…
2
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click the icon to view the data table. complete parts (a) through (c). …
The equation of the line is \(y = \frac{7}{4}x+\frac{3}{2}\).
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what is a residual? what does it mean when a residual is positive? choo…
C. A residual is the difference between an observed value of the response variable y and the predicted value of y. If it is positive, then the observed value is greater than the p…
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a data set is given. (a) draw a scatter diagram. comment on the type of…
\(\hat{y}=-0.736x + 6.821\)
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a data set is given. (a) draw a scatter diagram. comment on the type of…
The least - squares regression line is \(\hat{y}=-0.736x + 6.821\)
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a data set is given. (a) draw a scatter diagram. comment on the type of…
The least - squares regression line is \(\hat{y}=-0.736x + 6.822\)
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the linear correlation between violent crime rate and percentage of the…
No. B. the economy
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the linear correlation between violent crime rate and percentage of the…
No
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pregunta 1 (5 puntos) (01.01 mc) match each of the following figurative…
1. d. Hyperbole 2. e. Metaphor 3. b. Personification 4. a. Simile 5. c. Symbolism
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the accompanying data represent the total compensation for 12 randomly …
The linear correlation coefficient is close to \(0\) so **no** linear relation exists between the company's stock performance (explanatory variable) and their CEO's compensation (…
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which is a thesis statement? the cost of college tuition in the united …
The government should subsidize college for median - income Americans to help with the rising cost of tuition.
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what is the difference between dramatic irony and verbal irony? (1 poin…
A. Dramatic irony is when the audience knows something that contrasts with a character’s expectations, while verbal irony is when someone says something that is the opposite of wh…
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researchers initiated a long - term study of the population of american…
B. The length of the bear
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is this a thesis statement? do unions actions to improve working condit…
no
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for fifteen years i have resided in washington, and while it was far fr…
to demonstrate the difficulties that African Americans face in the capital
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my loving people, we have been persuaded by some that are careful of ou…
It inspires her soldiers to trust in her leadership.
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what is the range? 62 56 72 59 71 74 66 54 68 68 66 74 74 64 58
\(20\)
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what is the mode? 69 69 74 74 69 74 78 74 69 73 74 69 73 74
\(74\)
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my loving people, we have been persuaded by some that are careful of ou…
She anticipates and addresses her listeners' fears.
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my loving people, we have been persuaded by some that are careful of ou…
to encourage her soldiers before a battle
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use the sentence to answer the question. after taking a job as a delive…
C. Every road was connected, and each was harder to transverse that the one before it.
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what is the median? 40 47 41 44 35 34 44 40 39
\(40\)
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what i wish to talk of is the attitude of the american citizen in civic…
It compels the audience to value civic duties and professional duties equally.
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what is the range? 63 58 60 61 63
\( 5 \)
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what i wish to talk of is the attitude of the american citizen in civic…
He draws a comparison.
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what is the mode? 67 67 69 67 69 64 70 70
\(67\)
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what i wish to talk of is the attitude of the american citizen in civic…
to remind men of their civic obligations
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what is the mode? 5 8 4 8 6 4 8
\(8\)
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what is the range? 33 30 30 22 39 36 43 25 32 23
\(21\)
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a pediatrician wants to determine the relation that may exist between a…
| Height (centimeters) | Head Circumference (centimeters)| |---|---| | \(70.485\) | \(44.196\) | | \(65.405\) | \(43.688\) | | \(67.31\) | \(43.688\) | | \(65.405\) | \(42.926\) |…
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what is the mode? 9 13 3 13 13 9
\(13\)
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language and style unit test what is the most likely reason an author w…
The text has a serious tone.
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what is the median? 6 5 9 7 2 10 1 2 4
\(5\)
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what is the mode? 2 6 0 1 0 1 2 0 0
\(0\)
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what is the range? 0 7 4 5 3 4
\( 7 \)
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what is the median? 4 10 3 8 10
\(8\)