統計與機率
資料分析、機率分佈、假設檢定與統計方法。
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by william shakespeare act i, scene 7 shakespeares play macbeth is one …
B. by shaming him
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by william shakespeare act i, scene 7 shakespeare’s play macbeth is one…
B. He moves from deciding not to kill Duncan to promising to do so.
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macbeth by william shakespeare act i, scene 7 shakespeare’s play macbet…
(Assuming the drop - down options were related to how Macbeth's ambition is portrayed, for example, if an option was "how unbridled ambition can lead to downfall (as seen in 'vaul…
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3 based on the scatter plot, predict the value of x when y = 20. a) 12 …
A. 12
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based on the scatter plot, predict the value of x when y = 32 a) 6 b) 2…
13. None (there is a likely mis - print in the options. But if we assume a mis - take in reading the scatter - plot (maybe the x - axis is mis - labeled), but if we go by the opti…
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suppose a normal distribution has a mean of 62 and a standard deviation…
C. 62.5%
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12 based on the scatter plot, predict the value of x when y = 5. a) 9 b…
12. C) 6 15. \( x = 1 \)
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22c ) suppose a normal distribution has a mean of 34 and a standard dev…
C. 68.5%
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suppose a normal distribution has a mean of 34 and a standard deviation…
A. 81.9%
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suppose a normal distribution has a mean of 34 and a standard deviation…
D. 86.6%
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what is the probability that a data value in a normal distribution is b…
A. 53.3%
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identify independent and dependent variables in tables and graphs which…
1. \( k \) is the independent variable, and \( t \) is the dependent variable. 2. The dependent variable is always dependent on the independent variable.
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the scatter plot, predict a of x when y = 32. b)23 c)38 d)\\ \\ based o…
D. 7
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suppose a normal distribution has a mean of 222 and a standard deviatio…
A. 84.0%
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10 based on the scatter plot, predict the value of x when y = 32. a) 6 …
B. 23
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9 equation of the trend line:
\(y=\frac{1}{2}x + 30\)
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question 2 facebook for college students. a study suggests that 60% of …
The hypotheses should use the symbol 'p', not the symbol '$\hat{p}$' The hypotheses should both use the proportion '0.60', not '0.70' The null hypothesis ($H_0$) should be 'p = 0.…
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of exponential functions (includes 5.1b) question completed: 22 of 28 m…
200090
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stacy buys a used car for $22,000. if the value of the car depreciates …
\(0.18\)
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find the mean, median, mode, range, outl 41, 37, 43, 43, 36 mean: 36,37…
Mean: \( 40 \) Median: \( 41 \) Mode: \( 43 \) Range: \( 7 \) Outlier: None
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question 2 which means the opposite of rarely? a. almost b. somehow c. …
D. always
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she wasnt stopping now! she looked up at jerry, her ski instructor, who…
full of dangers or risks
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the word provoke means \cause a strong reaction such as anger or annoya…
poking him while he is sleeping
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ive been dreading this family road trip for weeks, but surprisingly, it…
cause a strong reaction such as anger or annoyance
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the word elated means \happy and excited.\ when would a person most lik…
after passing a tough exam
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is achieving a basic skill level in a subject independent to the locati…
There is not sufficient sample evidence to suggest that skill level in a subject is dependent of location.
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victor and his friend mateo loved creating animated videos. when their …
happy and excited
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zaid buys a loaf of bread and some broccoli. the graph shows the total …
The total cost of 1 pound of broccoli and a loaf of bread is \(\$6\). So the first blank is 1 and the second blank is 6.
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determine the expected count under the null hypothesis. is achieving a …
41.9 (The option corresponding to 41.9)
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30 multiple choice 1 point state the null hypothesis. is achieving a ba…
E. Skill level in a subject is independent of location.
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state your conclusion to the hypothesis test. sally was interested in w…
There is not sufficient sample evidence to suggest that the distribution of colors is not uniform.
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the word infested means \overrun with unwanted pests.\ what does it mea…
The great number of tourists is overwhelming or annoying.
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determine the expected count under the null hypothesis. sally was inter…
84
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sally was interested in whether the number of m&ms was uniform over all…
A. \( H_0 \): The proportion of each color is \( 1/6 \)
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use the model to make the appropriate prediction. a sociologist wanted …
27.5%
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construct the equation of the regression line. an editing firm compiled…
\( \hat{y} = 17.9(x) + 1.6 \)
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a group of persons filled in a questionnaire their age and the number o…
0.6
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a group of persons filled in a questionnaire their age and the number o…
0.6
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determine type and strength of the association. data shown on the follo…
Strong positive correlation
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multiple choice 1 point interpret the association. during george bushs …
D. approval ratings tended to fall as stock prices rose.
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21 multiple choice 1 point determine the type of association. describe …
These two variables are positively correlated.
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20 multiple choice 1 point select the most appropriate response. a p-va…
C. there is weak to no sample evidence against the null hypothesis. (assuming the third option is labeled C, if the original options had labels, we use the correct label with the …
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for the given significance test, explain the meaning of a type i error.…
C. Concluding that the smog - level has decreased when it actually has not.
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18 multiple choice 1 point select the most appropriate response. in hyp…
C. the null hypothesis is not rejected when the alternative hypothesis is true.
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17 multiple choice 1 point conduct the appropriate hypothesis test and …
No, because the test statistic is - 1.66
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16 multiple choice 1 point state your conclusion to the following hypot…
There is not sufficient sample evidence, at the 5% significance level, to conclude that more than 50% of shoppers made a purchase.
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a knee replacement currently has an average short-term recovery time of…
$H_0: \mu = 90$ $H_1: \mu < 90$ (the third option in the given choices)
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conduct the appropriate hypothesis test and compute the p-value. a medi…
Yes, because the p - value = 0.03
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select the correct answer. what is the effect of the underlined section…
A. It adds to the soft tone of the poem to describe the gentleness of nature.
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13 multiple choice 1 point conduct the appropriate hypothesis test and …
No, because the test statistic \( z^{*}=-1.04 \) (the first option: No, because the test statistic \( z^{*}=-1.04 \))
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state your decision to the significance test in terms of the null hypot…
Do not reject \( H_0 \)
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multiple choice which stem-and-leaf plot shows a data set with a mean t…
B. The middle stem-and-leaf plot
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using the z-tables (or t-tables), determine the critical value for the …
1.282
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state the null and alternative hypotheses you would use to test the fol…
\(H_0: p = 0.24\) \(H_1: p < 0.24\) (the third option in the list)
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multiple choice temperatures in mt. pocono (°f) the stem - and - leaf p…
B. The data set of temperatures has a mean that is equal to the median.
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9 multiple choice 1 point select the most appropriate response. as samp…
B. They become narrower.
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select the most appropriate response. what would happen (other things b…
It will be narrower. ### Second Question (Sample Size Increase and 95% Confidence Interval)
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the table shows the total national expenditures for health care (in bil…
\(y = 0.210x^{3}-2.82x^{2}+143x + 1470\)
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temperatures in pittsburgh (°f) 7 | 2 6 9 9 8 | 3 5 5 5 6 9 | 1 2 5 key…
Mean: 84 Median: 85 Mode: 85 Range:23 IQR:7
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construct the requested confidence interval. a survey of 400 non - fata…
(0.62, 0.72)
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select the correct answer. what does the prefix paleo- mean? a. false b…
C. ancient
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im mou 5: rice the owner of a small restaurant is out of rice, so they …
The solution to \( r(w)=30 \) is \( w = 10 \), meaning 10 weeks after purchasing the rice, 30 kilograms remain.
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the relative growth rate of a certain bacteria colony is 21% per hour. …
a. \( 7e^{0.21t} \) b. \( 7e^{5.04} \) (or approximately 7×154.47 ≈ 1081.29 if decimal is needed)
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this graph shows an elephants weight over time. complete the paragraph …
11000 200 20
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when will a multiplier be a decay factor? when the number is equal to 1…
B. When the number is less than 1
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what is the decay rate in the following model? a=1200(.85)^6 1200 .15 6…
\( 0.15 \) (corresponding to the option with \( 0.15 \))
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joe went for a jog yesterday and today. these graphs show the distance …
Joe jogged farther today than he did yesterday., Joe jogged faster in the first 15 minutes today than in the first 15 minutes yesterday., Joe jogged for 35 minutes on both days.
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a major break up - questions the declaration of independence is kind of…
1. The American colonies (Thirteen Colonies) are breaking up with Great Britain (specifically King George III and the British Crown). 2. They are breaking up because the American …
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determine the meaning of the underlined word in the sentence below usin…
came from
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euphemism = a word/phrase intended to soften an unpleasant, embarrassin…
the banker is telling you that you are broke and probably have a negative balance on your account.
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english has adopted many words from other languages. which adopted word…
C. Bon voyage - French
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gender | students boys | 24 girls | 28 answer attempt 1 out of 2 for ev…
For every \(\boldsymbol{6}\) boys in the class, there are \(\boldsymbol{7}\) girls in the class.
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what is the meaning of the word deckhand in the following excerpt from …
B. a member of the ship’s crew who works on the main section of the boat
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what is the meaning of the word steering in the following excerpt from …
the act of driving a boat
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which answer shares a word part and has a related meaning to the word d…
B. discomfort
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which answer shares a word part and has a related meaning to the word d…
B. deliberation
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result games won 9 lost 63 answer attempt 1 out of 2 for every games wo…
For every \(\boldsymbol{1}\) game won, there were \(\boldsymbol{7}\) games lost.
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determine the meaning of the underlined word in the sentence below usin…
A. gloomy, threatening
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determine the meaning of the underlined word in the sentence below usin…
C. a crack or split (assuming the options are labeled A, B, C with A: a conversation, B: an understanding, C: a crack or split)
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determine the meaning of the underlined word in the sentence below usin…
B. punishing
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determine the meaning of the underlined word in the sentence below usin…
B. unimportant, of little importance (assuming the middle option is labeled B; if options are unlabeled, "The Middle Option")
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number of students in each grade: grade\tstudents 6th grade\t10 7th gra…
For every $\boldsymbol{1}$ students in 6th Grade, there are $\boldsymbol{5}$ students in 8th Grade. (Or if using the original numbers, 10 and 50, but the simplified ratio is 1:5, …
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determine the meaning of the underlined word in the sentence below usin…
A. came from
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Question was provided via image upload.
C. They occurred before, because BCE is the same time period as BC, which means "Before Christ."
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on a test with 70 questions, bob got 63 correct. on another test with 5…
Yes
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question 17 (1 point) what does the concept of \density\ help geographe…
17. The concentration of a population 18. A rapidly growing population 19. India 20. Sikhism
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question 13 (1 point) which mountain range has the highest concentratio…
Question 13: The Karakoram Question 14: The Nile River Question 15: It considers only arable land, not the total area. Question 16: The British partitioned India into India and Pa…
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what is 14% of $135.17?
$18.92
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question 6 of 16 (0 points) | greatest attempt 1 of 3\ a) throughout la…
Graph 1 (assuming Graph 1 has the correct pattern of water level change: starts half - full, rises to full, then falls back to half - full)
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(h) john begins his jogging workout by running faster and faster for ab…
(Assuming the correct graph is one with increasing, constant, decreasing speed over time. If the options are Graph 1, Graph 2, Graph 3, Graph 4, and the correct one is, say, Graph…
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unit 2: you laugh but its true: humor and institutional racism in born …
Literature (under Arts)
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the first libraries grade 3, 650l the first libraries were built over 2…
C. long
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the data set below is the number of daily views over a week that a cont…
\(8.3\)
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a change in the amount of milk they purchase. what can we conclude? the…
There is a correlation between amount of oatmeal bought and amount of milk purchased. There may or may not be causation. Further studies would have to be done to determine this. #…
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(a) a researcher measured the shoe size and reading ability of a large …
The correct option is: There is a correlation between shoe size and reading ability. There may or may not be causation. Further studies would have to be done to determine this.
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mr. henderson studied his students geography test scores and sleeping h…
There is a correlation between test score and amount of sleep. There may or may not be causation. Further studies would have to be done to determine this.
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the data set below is the number of daily views a content creator recei…
\( 15.6 \)
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(b) a hospital found that a lower outside temperature indicates a highe…
There is a correlation between outside temperature and number of patient visits. There may or may not be causation. Further studies would have to be done to determine this.
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(a) a computer manufacturer conducted a survey. it showed that a younge…
There is no correlation between age and purchase price.
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what meaning makes sense in the blank? my cousins always feed treats to…
belongs to them