統計と確率
データ分析、確率分布、仮説検定、統計手法。
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the model shows that $1\\frac{3}{5}\\div\\frac{4}{5}=2$. what would hap…
The size of each group would be \(\frac{1}{2}\) as big. That means there would be \(2\) as many groups.
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2. the figure below represents the distances traveled by car a and car …
Car A is going faster. Car A is \(10\) miles per hour faster than Car B.
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unfathomable has the same or almost the same meaning as: unifying subtl…
incomprehensible
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enter values for x and y in the table to plot points in the graph. the …
\(41\) Swimmers
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elite has the same or almost the same meaning as: tiny final wrong best
best
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card sort sort the cards into two groups based on whether they represen…
- Proportional Relationship: A, E - Not a Proportional Relationship: B, C, D
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what would happen if you divide by \\( \\frac { 2 } { 5 } \\) instead o…
# Ex[SSE Completed, Client Connection Error][SSE Completed, Client Connection Error][LLM SSE On Failure]
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find the indicated z score. the graph depicts the standard normal distr…
\(1.16\)
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recurring (adjective) re - cur - ring ri - kar - iŋ *the repetition of …
B. essential
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classifying a gang \criminal street gang\ means any ongoing organizatio…
Laura's new group of friends requires her to shoplift if she wants to continue to hang out with them.
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select the tables that show a proportional relationship between x and y…
The second table shows a proportional relationship.
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find the indicated z score. the graph depicts the standard normal distr…
\(0.97\)
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identifying the characteristics of a gang \criminal street gang\ means …
participating in criminal activity, having a common name, sharing an identifying sign or symbol.
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mrs. snyder hosts an annual art contest for kids, and she keeps a recor…
$-21.5$
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antonyms choose the word or form of the word from this unit that is mos…
1. plod 2. diffident 3. facile 4. unfeigned 5. dearth
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select the tables that show a proportional relationship between x and y…
Both tables show a proportional relationship between $x$ and $y$.
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most people think that the ormal\ adult body temperature is 98.6°f. in …
C. Using the 68 - 95 - 99.7 Rule, about 95% of the body temperatures are expected to be between \(96.9^{\circ}F\) and \(99.7^{\circ}F\)
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find the indicated z score. the graph depicts the standard normal distr…
\(0.97\)
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the term freshman 15 refers to the claim that college students typicall…
A. No, because the percentage is low. Most freshmen males do not gain 15 pounds or more
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select the tables that show a proportional relationship between x and y…
Only the first table (with \(x = 8,y = 8\); \(x = 10,y = 10\); \(x = 12,y = 12\)) shows a proportional relationship.
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a vendor who sold bread at farmers markets counted the number of leftov…
$17.5$
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find the indicated z score. the graph depicts the standard normal distr…
\(0.97\)
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find the indicated z score. the graph depicts the standard normal distr…
\(-0.67\)
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find the indicated z score. the graph depicts the standard normal distr…
\(-0.74\)
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find the indicated z score. the graph depicts the standard normal distr…
\(0.74\)
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each year, the campers at janices summer camp try to set that summers r…
$2$
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find the indicated z score. the graph depicts the standard normal distr…
\(0.74\)
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interpolating from data enter values for x and y in the table to plot p…
\(\$275000\)
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find the indicated z score. the graph depicts the standard normal distr…
\(-1.79\)
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enter values for x and y in the table to plot points in the graph. thes…
\(\$233000\)
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find the indicated z score. the graph depicts the standard normal distr…
\(-1.21\)
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synonyms choose the word or form of the word from this unit that is the…
1. virulent 2. remiss 3. altruistic 4. benefactor 5. clemency
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find the indicated z score. the graph depicts the standard normal distr…
\(-1.22\)
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complete the following table. click here to view page 1 of the standard…
\(z_{0.10}=1.28\), \(z_{0.05}=1.64\), \(z_{0.025}=1.96\), \(z_{0.01}=2.33\), \(z_{0.005}=2.58\)
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find the value of $z_{\\alpha}$. $z_{0.48}$ click the icon to view a ta…
\(0.05\)
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making an interpolation swimmers at city pool compare the number of swi…
25 swimmers
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compare the number of swimmers at city pool and the outside temperature…
30 swimmers
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find the indicated critical value. z0.03 click to view page 1 of the ta…
\(1.88\)
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consider the extended metaphor of the caged bird. then, choose the figu…
The caged bird desires freedom, even though he has never experienced it.
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read the stanza. then, complete the statements. the free bird thinks of…
achieve whatever they want
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read the stanza. then, complete the statements. the free bird thinks of…
he says the sky belongs to him
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find the indicated area under the curve of the standard normal distribu…
\(68.26\)
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writing the equation of a trend line blue moon steakhouse the scatterpl…
\(y = 12x\)
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find the indicated area under the curve of the standard normal distribu…
About \(95.44\%\) of the area is between \(z=-2\) and \(z = 2\) (or within 2 standard deviations of the mean).
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read the stanza, then answer the questions. the caged bird sings with a…
hopeless yearning
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writing the equation of a trend line blue moon steakhouse the scatterpl…
\(y = 15x + 20\)
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assume that a randomly selected subject is given a bone density test. t…
\(0.9999\)
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read the passage from sugar changed the world. the end of slavery was a…
The sugar plantations depended on cheap labor. The source changed from enslaved people to indentured Indians.
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assume that a randomly selected subject is given a bone density test. t…
C.
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assume that a randomly selected subject is given a bone density test. t…
\(0.9522\)
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select the correct answer. read the sentence from paragraph 3 and the d…
B. like - minded people
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assume the readings on thermometers are normally distributed with a mea…
\(0.0869\)
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assume the readings on thermometers are normally distributed with a mea…
C.
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assume that thermometer readings are normally distributed with a mean o…
C.
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assume that a randomly selected subject is given a bone density test. t…
\(0.9357\)
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select the entry word in this dictionary entry. instrument \\in - struh…
instrument
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assume that a randomly selected subject is given a bone density test. t…
C.
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assume that a randomly selected subject is given a bone density test. t…
\(0.2483\)
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2 multiple - choice questions imagine youre writing a paper about the d…
1. In trying to portray competitors in the worst possible light, negative ads often stretch the truth, which can call into question the honesty of the candidate running the ad. 2.…
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assume that a randomly selected subject is given a bone density test. t…
A.
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the term \freshman 15\ refers to the claim that college students typica…
\(12.9\%\)
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how can jordan use the plot to check the reasonableness of his answer? …
His slope should be positive because the trend line is slanted up to the right.
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assume that a randomly selected subject is given a bone density test. t…
\(0.9616\)
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assume that a randomly selected subject is given a bone density test. t…
B.
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which is the equation of his trend line? $y = 2.75x$ $y = 3.05x - 0.6$ …
\(y = 3.25x-1\)
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assume that a randomly selected subject is given a bone density test. t…
\(0.0951\)
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assume that a randomly selected subject is given a bone density test. t…
C.
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which pair of points would be best for miguel to use? p and w q and v r…
P and W
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find the area of the shaded region. the graph depicts the standard norm…
\(0.8770\)
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which pair of points should be used to find the line of best - fit for …
\(K\) and \(M\)
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multiple-choice question ils sont rouges means they are red i am red it…
They are red
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find the area of the shaded region. the graph depicts the standard norm…
\(0.2389\)
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drawing conclusions using the trend line given the equation of a trend …
No. A trend line gives an estimate. There are real - world variations and uncertainties (e.g., other factors affecting sales) that prevent it from giving the exact amount.
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monthly sales & advertising costs the scatterplot and trend line show a…
\(21\)
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multiple-choice question what is a media market? a defined geographic r…
- First question: a defined geographic region where leading TV stations operate - Second question: to target specific demographic groups - Third question: the likelihood of persua…
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what does a positive correlation tell you about the graph that compares…
A positive correlation means that as advertising costs go up, sales go up. The owners would be happier with a steeper slope. Because a steeper slope implies that for every additio…
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1. find the percent error of the measurement 4 cm. 1% 4% 12.5% 40%
12.5%
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monthly sales & advertising costs the slope of the trend line is 15. wh…
- The slope represents the rate of change of the data. - Sales increase \(\$15,000\) as ads increase by \(\$1,000\). - A positive slope infers a positive correlation.
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20. read the map and answer the question below. the map above shows fac…
A. England’s resources helped build cities and industries
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pulse rates of women are normally distributed with a mean of 77.5 beats…
For the first question: The mean of the z - scores is \(0\) and the standard deviation of the z - scores is \(1\). For the second question: D. The z scores are numbers without uni…
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explaining the meaning of slope when finding the slope of the trend lin…
The slope of the trend line in a scatter - plot represents the rate of change between the two variables. A positive slope means an increasing relationship, a negative slope means …
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suppose your statistics professor reports test grades as z - scores, an…
D. The score was 2.20 standard deviations higher than the mean score in the class.
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4. humor should be clever and amusing but never so pungent that it hurt…
4. pungent 5. infallible 6. repose 7. truculent 8. unfeigned 9. altruistic 10. benefactor
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1. ( 50 div (-5) = ) 2. ( -18 div 9 = ) 3. ( -15 div (-3) = ) 5. ( \fra…
The average difference between his income and expenses each month is \(-150\). This means that, on average, Mr. Engle's expenses exceeded his income by \(150\) dollars each month …
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use z scores to compare the given values. in a recent awards ceremony, …
The z - score for the winner of Best Actor is \(z=-1.31\). The winner of Best Actress had the more extreme age.
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finding the slope of the trend line the scatterplot and trend line show…
15 (the fourth option)
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examples 1, 2, 4, and 5 1. ( 50div(-5)=) 2. ( -18div9=) 3. ( -15div(-3)…
The average difference between his income and expenses each month is \(- 150\) dollars. This means that, on average, Mr. Engle's expenses exceeded his income by \(150\) dollars ea…
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solving and writing about equations of trend lines monthly sales & adve…
Point 1: \((6.5,122)\), Point 2: \((6.9,123)\)
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completing the sentence - set a choose the word that best completes eac…
1. embark 2. dearth 3. facile 4. pungent 5. infallible 6. repose 7. truculent 8. unfeigned
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solving and writing about equations of trend lines the scatterplot and …
Point 1: \((5.7,102)\), Point 2: \((6.4,117)\)
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solving and writing about equations of trend lines monthly sales & adve…
Point 1: \((6.5,122)\) Point 2: \((6.9,123)\)
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these scatterplots represent the monthly sales and advertising costs of…
The fourth scatter - plot (the one with a non - zero positive slope that balances the data points around it) has the best - fit trend line.
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use z scores to compare the given values. based on sample data, newborn…
Since the z score for the male is \(z=-2.72\) and the z score for the female is \(z = - 2.27\), the male has the weight that is more extreme.
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use z scores to compare the given values. the tallest living man at one…
Since the z - score for the tallest man is \(z = 10.85\) and the z - score for the shortest man is \(z=-13.06\), the shortest man had the height that was more extreme.
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for a data set of the pulse rates for a sample of adult females, the lo…
a. 41 beats per minute b. \(2.55\) standard deviations c. \(z\approx - 2.55\) d. Yes, the pulse rate of 32 beats per minute is significantly low.
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for a data set of the pulse rates for a sample of adult females, the lo…
41.0
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researchers measured the data speeds for a particular smartphone carrie…
a. \(60.09\) Mbps b. \(3.01\) d. Yes, the carrier's highest data speed is significant.
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find the interquartile range and sample standard deviation for the set …
\(IQR = 19100\) and \(s = 11760.5\) (corresponding to the last option \(IQR = 19,100\) and \(s = 11,760.5\))
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researchers measured the data speeds for a particular smartphone carrie…
\(60.09\)
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if your score on your next statistics test is converted to a z score, w…
D. The z score of 2.00 is most preferable because it is 2.00 standard deviations above the mean and would correspond to the highest of the five different possible test scores.