統計與機率
資料分析、機率分佈、假設檢定與統計方法。
-
in this problem, round to four decimal places. consider the discrete ra…
$\mu = 10.8900$ $\sigma^{2}=30.2779$ $\sigma = 5.5025$
-
algebra 1 w/probability study guide – proportions, equations in context…
1. $x = 18$ 2. $x = 10$ 3. $a = 0$ 4. $\frac{16}{3}$ tazas de harina 5. Maddie: 11 horas, Ryan: 34 horas 6. $n = 8$ 7. $n>-10$ 8. $n\geqslant6$
-
numerous towns sprang up along the rail lines. some towns, such as denv…
1. Railroads promoted west - ward settlement, reduced shipping costs, and united regions, boosting trade and economic growth. 2. Railroad construction often displaced Native Ameri…
-
what does the slang term \de choto\ mean? \want always\ \buy expenive s…
None of the above (The Spanish - slang term "de choto" generally means "by chance" or "accidentally", and none of the provided options match this meaning.)
-
multiple choice question what is the prefix that means fat? o hyal- o p…
adip-
-
multiple choice question what is the prefix that means for? hyal- pseud…
None of the above options are correct as none of the given prefixes mean "for".
-
9 multiple answer 10 points according to your textbook, the juxtapositi…
9. C. antithesis 10. B. giving meaning to events
-
the denotative meaning of a word is what the word suggests or implies b…
1. its literal or dictionary meaning 2. True
-
1 multiple answer 10 points which of the following does your textbook i…
1. D. All the answers are correct. 2. D. what the word suggests or implies.
-
name period \poetry analysis\ pick one poem to analyze in more detail. …
Debido a que no se ha elegido un poema en particular, no se pueden proporcionar respuestas específicas. Sin embargo, para responder a las preguntas: - Título: Analizar el signific…
-
5 multiple answer 10 points visual aids can be very useful to a speaker…
5. enhance the clarity of a speaker's ideas 6. pie
-
the stem - and - leaf plot below shows the amounts of time (in minutes)…
(a) Weekdays: 47 minutes, Weekends: 40 minutes (b) Weekends (c) Weekends
-
this step, ever drop the ball\ means: dont call attention to your mista…
Never make a mistake while speaking
-
what does this mean for trumps executive orders? trumps visa - suspensi…
B. action to stop the order
-
read the sentence from the introduction paragraphs 1 - 3. (the order wa…
C. discarded
-
franco has a hat with 9 blue marbles, 4 yellow marbles, and 12 green ma…
The experiment is not a binomial experiment because the probability of choosing a green marble is not the same for each drawing.
-
how many outcomes are possible for one event of a binomial experiment? …
B. 2
-
forty - four percent of the members of the science club wear blue shirt…
A. Selecting eight members randomly and recording whether each member is wearing a blue shirt B. Selecting eight members randomly and recording the number in the group wearing a b…
-
thirty - three percent of all students at a high school like beef stew.…
D. 0.67
-
a spinner with 8 equally sized slices has 2 blue slices and 6 yellow sl…
$0$
-
p(k successes)=_nc_kp^k(1 - p)^{n - k} _nc_k=\frac{n!}{(n - k)!k!} ○ _7…
$_{7}C_{2}(\frac{1}{6})^{2}(\frac{5}{6})^{5}$ (corresponds to the third option)
-
which of the following is a binomial experiment? a survey asking 75 peo…
A survey asking 75 people if they like the new school building
-
a bag with 10 marbles has 2 blue marbles, 4 red marbles, and 4 yellow m…
$\frac{1}{5}$
-
according to a poll, 30% of voters support a ballot initiative. hans ra…
0.309
-
a researcher finds that 15% of all commuters in a metropolitan area tak…
C. 250
-
evaluate the function to determine the output. example: recall that f(2…
9. $f(5)=96$ 10. $g(0)=8$ 11. $f(2)=12$ 12. $g(3)=1000$
-
example: recall that f(2) means to replace the value of n with 2 and wo…
9. $f(5)=96$ 10. $g(0)=8$ 11. $f(2)=12$ 12. $g(3)=1000$
-
fill in the blank question in terms of standard of living, having more …
less
-
in baseball, a players batting average is the proportion of times the p…
50.14%
-
the weights of 9 - ounce bags of a particular brand of potato chips can…
$0.0548$
-
according to a health information website, the distribution of adults d…
0.6915
-
in baseball, a players batting average is the proportion of times the p…
3.64%
-
the explicit redistribution of income uses a. regulations and transfer …
D. transfer payments and income transfers in kind
-
clothes can often reflect the personality of the person wearing them. f…
C. indicate
-
true or false: sects means a division of groups. true false rewatch skip
true
-
16. which box plot has the largest interquartile range? a. b. c. d.
C.
-
chapter 12 you decide part i - choose your path: are yes means yes laws…
No; the hearing was about what happened at the party where the victim claimed she was raped, not her past.
-
15. list the four dot plots in order of variability from least to great…
Graph b, Graph a, Graph c, Graph d
-
14. mai took a survey of students in her class to find out how many hou…
a. 21 hours. Reason: IQR = Q3 - Q1=11 - 5 = 6 hours. Upper - fence=Q3+1.5×IQR=11 + 9=20 hours. 21>20 and 21>7. b. No. Reason: Lower - fence=Q1 - 1.5×IQR=5 - 9=-4 hours. Since the …
-
the as & bs of wilsonian progressivism: explain the various ways wilson…
16th amendment: Allowed for a federal - income tax, a progressive wealth - redistribution measure. 17th amendment: Provided for direct election of senators, enhancing democratic p…
-
1 read the text below and then answer the questions. our indian legisla…
1. a) Laws regarding Native - Americans in the US (specific name not given in text). b) To keep indigenous people in a state of tutelage and treat them as wards/children of the st…
-
11. select all the statements that are true about standard deviation. a…
B. It is a measure of variability. ### 12.
-
9. what is the iqr? number of branches on 10 year old trees a. 5 branch…
A. 5 branches
-
9. what is the iqr? number of branches on 10 year old trees a. 5 branch…
A. 5 branches
-
question 17 2 pts in american political culture, economic freedom means…
capitalism
-
7. here is a data set 1 2 3 3 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 outliers, while the mean is affected by the outlier value of \(70\), so the median giv…
-
a principal wants to find out how many hours per week the students in t…
every fifth student from each grade from a list of registered students
-
the heartbeat of the land is woven throughout the story. what theme doe…
A. Under the ground are channels of water that move like blood through a heart, which you can hear if you put your ear to the ground.
-
maine has a cold climate in the winter. which statement about the proba…
The probability is closer to 1 than to 0.
-
5. based on the dot plot below, list all of the values in the data set …
0, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, 5
-
game 4 - clue 1. what is the probability that the weapon used is the ro…
$\frac{1}{6}$ ### Question 2
-
the probability of picking a blue marble out of a bag of 50 marbles is …
44
-
a speed camera recorded the speeds of 100 cars in miles per hour. the b…
25%
-
based on the spinner shown, what is the probability of the next spin la…
$\frac{1}{4}$
-
jeff has 8 red marbles, 6 blue marbles, and 4 green marbles that are th…
$\frac{1}{3}$
-
5. based on the dot plot below, list all of the values in the data set …
(2) The median and the mode are the same.
-
students at javis school perform community service hours by volunteerin…
50%
-
game 3 - monopoly 1. what are the chances of every person in your group…
1. Depends on distance to Beverly Railroad from start. General approach: Consider sum of two - dice rolls and sample space of 36. 2. \(\frac{1}{40}\) 3. \(\frac{1}{16}\) 4. Requir…
-
the line plot shows the height of plants in inches that were planted la…
1 inch
-
5. based on the dot - plot below, list all of the values in the data se…
For the dot - plot data: (2) For the shoe - size data: a. 7 b. 0
-
3. a. what is the five - number summary for the data 0, 2, 2, 4, 5, 5, …
3. a. Min: 0, Q1: 2, Med: 5, Q3: 5, Max: 11 4. a. 78.5 b. 77.5 c. The mean will decrease because the sum of the data values decreases while the number of data points decreases by …
-
2. label each type of graph using the word bank below. write your lette…
1. The top - left graph has two peaks, so it is D. bimodal. 2. The top - right graph has a long tail on the right, so it is C. skewed right. 3. The bottom - left graph has a long …
-
unit 1 lesson 11 cumulative practice problems 1. four amateur miniature…
player c, player a, player b, player d
-
use regression to find an exponential equation that best fits the data …
$a = 628.57$ $b = 1.67$
-
5. complete the final row of this chart to interpret the meaning of the…
Esperanza is regaining a sense of connection and belonging to the land, similar to the connection her father felt, symbolizing a re - establishment of roots and a feeling of being…
-
here is a table showing all 52 cards in a standard deck. suppose one ca…
(a) $\frac{1}{2}$ (b) $\frac{3}{13}$ (c) $\frac{8}{13}$
-
what does the underlined word mean in the following s buscamos las cart…
B. post office
-
use regression to find an exponential equation that best fits the data …
$a\approx21.50$ $b\approx3.98$
-
game 2 - release your prisoners 1. what is the least number of rolls it…
1. 6 2. \(\frac{1}{6}\) 3. \(\frac{1}{5}\) 4. \(\frac{1}{9}\)
-
what does the underlined word mean in the following sentence? yo puedo …
D. library
-
what does the underlined word mean in the following sentence? los chico…
ice cream shop
-
homework 5 section 10.1 question 2 of 8 (1 point) | question attempt: 1…
$\frac{3}{10}$
-
1. what is the least number of rolls it will take to release all your p…
2. \(\frac{1}{6}\) 3. \(\frac{1}{5}\) 4. \(\frac{1}{9}\) 1. Cannot be answered due to lack of information.
-
(b) subtract. 1 - p(not x) = (c) select the answer that makes the sente…
(b) $P(X)$ (c) $P(X)$
-
choose the correct answer below. a. the mean is the best measure becaus…
B. The mean is the best measure because the data are approximately symmetric.
-
when youre asked to predict, you should use information from the text t…
A. Based on the survey data, 95% of students enjoyed last year’s prom, so I think that 190 out of 200 students will attend this year’s prom.
-
without performing any calculations, determine which measure of central…
B. The mean is the best measure because the data are approximately symmetric.
-
we have a deck of 10 cards numbered from 1 to 10. some are grey and som…
For event X: - Outcomes: Check 1, 7, 9 - $P(X)=\frac{3}{10}$ For event not X: - Outcomes: Check 2, 3, 4, 5, 6, 8, 10 - $P(\text{not }X)=\frac{7}{10}$
-
determine whether the statement is true or false. if it is false, rewri…
B. The statement is true. The midpoint is the sum of the lower and upper limits of the class divided by two. The distance between two consecutive lower (or upper) class limits is …
-
determine whether the approximate shape of the distribution in the hist…
C. The shape of the distribution is skewed right because the bars have a tail to the right.
-
approximate the mean of the frequency distribution for the ages of the …
$42.0$
-
which team has the largest interquartile range? bears wolves lions tige…
Tigers
-
question 1 - 6 chelsea received the following test scores in her algebr…
mean: 85.14, median: 85, mode: 81
-
the table below shows the frequency - distribution of the rainfall on 5…
C
-
kurt, twelve - year - old boy mrs delano, lisas mother scene 1 stage se…
C. to develop the rising action of the play
-
the frequency distribution below represents frequencies of actual low t…
The correct histogram is the one where the bar - heights for the class intervals A - G match the frequencies 1, 2, 5, 12, 6, 3, 2 respectively. Without seeing the exact visual det…
-
the accompanying data and frequency distribution are 45 commute times t…
C.
-
the histogram to the right represents the weights (in pounds) of member…
21
-
4 multiple choice 1 point when should you paraphrase instead of quoting…
When the meaning is more important than the exact wording
-
if we collect a large sample of blood platelet counts and if our sample…
D. The outlier will appear as a bar far from all of the other bars with a height that corresponds to a frequency of 1.
-
from the 8th to 11th centuries c.e., the vikings were arguably europes …
"The most famous Viking navigational tool was the sun stone, a mineral found in Iceland. The sun stone allowed the Vikings to analyze the sun's location even on cloudy days. This …
-
the population of ages at inauguration of all u.s. presidents who had p…
C. With a data set that is so small, the true nature of the distribution cannot be seen with a histogram.
-
heights of adult males are normally distributed. if a large sample of h…
Bell-shaped
-
a company manufactures and sells shirts. the daily profit the company m…
$f(-9)=-93$, meaning if the company sells - 9 shirts, they would make a profit of - 93 dollars. This interpretation is not valid in the context of the problem. $f(2)=-16$, meaning…
-
a college has a financial aid formula that applies to applicants whose …
$f(-2)=0$, meaning a qualifying applicant with $- 2$ siblings in their household would get $\$0$ in financial aid. This interpretation is not valid in the context of the problem. …
-
which constant term would mean that the expression is completely factor…
10
-
12 a nations culture is the ______ common to its people. multiple choic…
A. shared set of beliefs, values, knowledge, and patterns of behavior
-
when mackayla hears the word “love” she is happy because she just start…
C. people
-
read the lines from because i could not stop for death. we paused befor…
The language creates an image of starkness and isolation.
-
1 multiple choice 2 points words, and virtually all language, are symbo…
B. denotative; connotative