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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1. the scatter plot shows the results of a survey where people were ask…
C. The weekly salary earned
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the table below shows the frequency distribution of the rainfall on 52 …
A
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the frequency distribution below represents frequencies of actual low -…
B.
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b. frequency 20 15 10 5 0 6 6.1 6.2 6.3 6.4 weight (grams) c. frequency…
B. The histogram appears to depict a normal distribution. The frequencies generally increase to a maximum and then decrease, and the histogram is roughly symmetric.
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part 1: career & interest exploration 1. list 5 careers, talents, or gi…
1. (Example answer) Writing, Graphic Design, Teaching, Web Development, Photography 2. For Writing: Author, Copywriter, Content Writer, Technical Writer, Editor, Proofreader, Jour…
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the table below shows the frequency distribution of the weights (in gra…
The first histogram appears to depict data that have a normal distribution because the frequencies increase to a peak and then decrease in a somewhat symmetric fashion, which is c…
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what is the correct meaning of the word commit? achieve supervise attem…
pledge
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what is the correct meaning of the word secluded? my friend has a seclu…
isolated
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what is the correct meaning of the word ghastly? horrifying forgettable…
horrifying
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what does the prefix im - mean in the word impartial? like a referee in…
not
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mrs. rawls create her scatterplot using the following data. the same da…
There is not enough information given to answer this problem.
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what does the prefix deca - mean in the word decathlon? the decathlon w…
ten
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which federal agency calculates the consumer price index (cpi)? us cens…
B. US Bureau of Labor Statistics
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why might buying a home during a recession be a good decision for some …
- Housing prices are down - Less demand means more options for buyers - Less demand means less competition with other buyers
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2. local authorities found that as the number of stop signs in a neighb…
A. There is positive association between the variables.
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1. the scatter plot shows the results of a survey where people were ask…
d. The hours the person spends on hobbies each week
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in a freshman high school class of 80 students, 22 students take consum…
$P = \frac{11}{40}+\frac{1}{4}-\frac{1}{20}$
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construct the cumulative frequency distribution for the given data. dai…
| Daily Low Temperature ($^{\circ}$F) | Cumulative Frequency | | ---- | ---- | | Less than 40 | 1 | | Less than 45 | 5 | | Less than 50 | 10 | | Less than 55 | 23 | | Less than 60…
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members of a step team perform dances involving stepping and clapping i…
$2.4$
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heights of statistics students were obtained by a teacher as part of an…
Based on the distribution, the answer to "do the heights appear to be reported or actually measured?" is B. The heights appear to be reported because there are disproportionately …
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the sample space, s, of a coin being tossed three times is shown below,…
| $X$ | $p(X)$ | | ---- | ---- | | 0 | $\frac{1}{8}$ | | 1 | $\frac{3}{8}$ | | 2 | $\frac{3}{8}$ | | 3 | $\frac{1}{8}$ |
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a caterer makes 74 jamaican patties with 3 different types of filling a…
The number of outcomes in X is 24. The number of outcomes in the complement of X is 50. Lola is incorrect.
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a private university is accepting applications for enrollment. out of 2…
Because some applicants volunteer and meet the GPA requirements, the events are not mutually exclusive. Thus, the probability is 65%
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construct the cumulative - frequency distribution for the given data. a…
Less than 30: 27 Less than 40: 61 Less than 50: 74 Less than 60: 76 Less than 70: 81 Less than 80: 83 Less than 90: 84
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midwest 1) nationally, there are over 62,000 people waiting as of octob…
d. narratives and statistics only
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construct one table that includes relative frequencies based on the fre…
C. Yes, because the relative frequency of the higher tar classes is greater for nonfiltered cigarettes.
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the director of health services is concerned about a possible flu outbr…
$\frac{39}{80}$
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the director of health services is concerned about a possible flu outbr…
$\frac{10}{17}$
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construct one table that includes relative frequencies based on the fre…
|Tar (mg)|Relative Frequency (Non - filtered)|Relative Frequency (Filtered)| |---|---|---| |$5 - 9$|0%|4%| |$10 - 14$|0%|4%| |$15 - 19$|8%|20%| |$20 - 24$|0%|72%| |$25 - 29$|52%|0…
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kevin didnt hear the last half of angelas speech, because he was thinki…
D. listen with an open mind
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identify the lower class limits, upper class limits, class width, class…
24.5, 29.5, 34.5, 39.5, 44.5, 49.5, 54.5, 59.5
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multiple choice question which of the following is true about language?…
C. Concrete words are specific.
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identify the lower class limits, upper class limits, class width, class…
27, 32, 37, 42, 47, 52, 57
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identify the lower class limits, upper class limits, class width, class…
$146$
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identify the lower class limits, upper class limits, class width, class…
99.5, 199.5, 299.5, 399.5, 499.5, 599.5
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multiple choice question recognizing that a word only represents an obj…
is symbolic.
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identify the lower class limits, upper class limits, class width, class…
149.5, 249.5, 349.5, 449.5, 549.5
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identify the lower class limits, upper class limits, class width, class…
100
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identify the lower class limits, upper class limits, class width, class…
151
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identify the lower class limits, upper class limits, class width, class…
-0.5, 99.5, 199.5, 299.5, 399.5, 499.5, 599.5, 699.5
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identify the lower class limits, upper class limits, class width, class…
49.5, 149.5, 249.5, 349.5, 449.5, 549.5, 649.5
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the virgin groups introduction of the virgin atlantic airline in 1984 i…
C. Brands with high market share have high purchase probability regardless of whether the other product in the pair is purchased and thus have less potential to increase in purcha…
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though longitudinal studies like the northern ireland longitudinal stud…
B. Longitudinal methods would likely be less suitable for studies in public opinion than for studies in public health.
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identify the lower class limits, upper class limits, class width, class…
99, 199, 299, 399, 499, 599, 699
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identify the lower class limits, upper class limits, class width, class…
0, 100, 200, 300, 400, 500, 600
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does the frequency distribution appear to have a normal distribution us…
B. No, the distribution does not appear to be normal.
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a frequency table of grades has five classes (a, b, c, d, f) with frequ…
| Grade | Frequency | Relative frequency | | ---- | ---- | ---- | | A | 3 | 7.32% | | B | 12 | 29.27% | | C | 16 | 39.02% | | D | 8 | 19.51% | | F | 2 | 4.88% |
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refer to the table summarizing service times (seconds) of dinners at a …
53
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multiple choice question which of the following is true about language?…
A. Concrete words are specific.
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a bank offers the following two investment options. find the value for …
The value of the Long - Term Investment is $\$32943$ and the value of the Money Maker Savings is $\$44834$
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a bank offers the following two investment options. find the value for …
The value of the Long - Term Investment is $\$26355$, and the value of the Money Maker Savings is $\$26298$
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a bank offers the following two investment options. find the value for …
The value of the Long - Term Investment is $\$26235$ and the value of the Money Maker Savings is $\$25217$
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excerpt from inaugural address by john f. kennedy john f. kennedy deliv…
B. It encourages unity between nations.
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a bank offers the following two investment options. find the value for …
The value of the Long - Term Investment (10 - year CD) is $\$13218$ and the value of the Money Maker Savings is $\$11052$
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a bank offers the following two investment options. find the value for …
The value of the Long - Term Investment is $\$13220$, and the value of the Money Maker Savings is $\$12345$
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complete the sentence with the word that best fits the overall meaning …
premature
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a bank offers the following two investment options. find the value for …
$11049$
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what does the word curtail mean? to briefly pause something until a lat…
to cut short or stop before the intended ending
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a bank offers the following two investment options. find the value for …
$11052$
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sort the words according to the meanings of their shared roots. infract…
break: infraction, fractious, diffraction strength: forte, refortify, fortify horn: corneous, bicorn
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“correlation does not prove causation” means that select an answer a. i…
B. although two variables are interrelated, changes in one do not necessarily cause changes in the other.
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satiety and satisfied are related english words that come from latin. w…
fullness
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which text has the most distressed tone? as the jet taxied down the run…
As the jet taxied down the runway, dread pooled in my stomach and tears prickled in my eyes. The plane shuddered to a temporary halt; I squeezed my eyes shut, clenched my fists, a…
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the following are the ages of 18 history teachers in a school district.…
The box - and - whisker plot has a minimum value of 28, $Q_1 = 33.5$, median $Q_2=41.5$, $Q_3 = 51.5$, and a maximum value of 57, with the box drawn from 33.5 to 51.5, a vertical …
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read the passage. for centuries, humans have sought efficient ways to s…
Throughout history, people have used homing pigeons as a reliable means of long - distance communication.
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what does the root jur mean? do or make law good send
law
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problem 1 - part a an empty shipping box weighs 250 grams. the box is t…
Solution 1: When \(T = 0\), \(W = 250\). It represents the weight of the empty box. Solution 2: When \(T = 2\), \(W = 515\). It represents the weight of the box with 2 T - shirts.
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the following text is from meredith nicholsons 1910 short story \the gi…
D. Arrived
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a bank offers the following two investment options. find the value for …
The value of the Long - Term Investment is $\$26354$, and the value of the Money Maker Savings is $\$25666$.
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the polynesian languages, a group of related languages originating on i…
D. a modest
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here is an example for you to analyze connotation. read this sentence. …
It explains more about how Martina feels. It shows how angry Martina is at Luis.
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a bank offers the following two investment options. find the value for …
The value of the Long - Term Investment (10 - year CD) is $\$26234$, and the value of the Money Maker Savings is $\$24609$
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refer to the accompanying data set and use the 30 screw lengths to cons…
| Length (in.) | Frequency | | ---- | ---- | | 2.220 - 2.229 | 3 | | 2.230 - 2.239 | 5 | | 2.240 - 2.249 | 7 | | 2.250 - 2.259 | 8 | | 2.260 - 2.269 | 4 | | 2.270 - 2.279 | 3 | | …
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32 multiple choice globalization means that the scale of the world is s…
E. shrinking
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a bank offers the following two investment options. find the value for …
The value of the Long - Term Investment (10 - year CD) is $\$26355$, and the value of the Money Maker Savings is $\$24705$
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a bank offers the following two investment options. find the value for …
The value of the Long - Term Investment is $\$13220$, and the value of the Money Maker Savings is $\$11327$.
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a bank offers the following two investment options. find the value for …
The value of the Long - Term Investment (10 - year CD) is $\$13271$ and the value of the Money Maker Savings is $\$11049$
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the spread of something over a given area is concentration distribution…
B. distribution
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does the frequency distribution appear to have a normal distribution us…
A. No, the frequencies do not decrease from the maximum frequency to a low frequency.
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after dessert zone made the graph, 25 people changed their vote from ch…
Chocolate, Cookie dough
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are the data reported or measured? a. the data appears to be measured. …
C. The data appears to be reported. Certain heights occur a disproportionate number of times.
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ana counted the number of hurricanes that occurred over four months and…
16
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alice graphed how many books in the school library are about her favori…
100
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the graph below shows the number of dogs that came into puppy party pla…
Tuesday
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the last digit of the heights of 60 statistics students were obtained a…
B.
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question 1 (matching worth 6 points) (02.04rlc) match each character wi…
Calpurnia - C Portia - None of the above (as the given description for her is incorrect in context) Brutus - F Decius - B Artemidorus - A Cassius - E
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question 10 (multiple choice worth 2 points) (02 01r mc) read the sente…
C. List
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question 9 (multiple choice worth 2 points) (02 01rlc) if a student use…
A. Antonym
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read the sentence. then answer the question that follows. the actors fi…
B. Cause and effect
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read the sentence. then answer the question that follows. the ballerina…
B. Graceful and fluid
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question 4 (multiple choice worth 2 points) (02 01r lc) if a student us…
Question 4: Example Question 5: None of the provided options are correct. It should be something like graceful and flexible.
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read the sentence. then answer the question that follows. the childs an…
C. Dislike
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read the sentence. then answer the question that follows. jamal was app…
B. Inference
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read the sentence. then answer the question that follows. the music of …
1. D. Sleepy 2. Example context clue
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the table lists average annual cost (in dollars) of tuition and fees at…
$f(x)=1229x + 24552$
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seth is analyzing the number of students in his class and high school w…
A randomly selected student who owns a skateboard is a freshman.
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at a local college, 100 students were asked about their major fields of…
$\frac{7}{10}$
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unit test unit test complete read \a gift, not a punishment.\ which exc…
"Every parent in this room has had a child look at them and say, 'Don't you love me anymore?' And every parent has said, 'Are you silly? Yes, I love you. I just don't like what yo…
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the weights, in pounds, of a group of student are as follows: 173 123 1…
A. Mean is 160.12; Standard deviation is 19.8. Five - number summary: $\text{min}=120,Q_{1}=148,\text{median}=162,Q_{3}=174,\text{max}=202$
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olga has a drawer of socks with 4 red pairs, 2 gray pairs, and 8 black …
The probability that Olga will randomly select a red pair of socks is $\frac{4}{4 + 2+8}=\frac{4}{14}=\frac{2}{7}$, and the probability that she will randomly select a red hair - …