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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(effects of changes in data mc) the list represents the ages of student…
The mean will decrease to about 6.8. ### Question 7
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question 14 given the inca counting board below, red squares represent …
Number of goats: 7 Number of sheaves of grain: 6
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of 500 people who used the internet to find pet information, 310 said t…
62
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find the third quartile ( q_3 ) of the list of 24 sorted values shown b…
To find the third quartile \( Q_3 \) for a list of \( n = 24 \) sorted values, we first find the position of \( Q_3 \) using the formula: \[ \text{Position of } Q_3 = \frac{3}{4}(…
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given the inca counting board below, red squares represent one goat, an…
Number of goats = 8 Number of sheaves of grain = 6
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the table shows the main dishes served each day at a cafeteria. | monda…
B. No. There is not enough information. You also need to know if someone has fish and chips or tacos.
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question 3 (multiple choice worth 2 points) (histograms and line plots …
### Question 3 (Histograms and Line Plots MC) To determine the correct statement, we analyze the line plot: - **Symmetry Check**: The data (dots) are balanced around the middle (a…
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question 1 · 1 point if the us has comparative advantage in producing c…
- the US can specialize in car production and trade with other countries. - the US has a lower opportunity cost of producing cars.
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how does the sentence \the great city of timbuktu, home to arguably the…
C. It supports the idea that West Africa was a center of civilization before the slave trade. ### Question 2
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a student’s iq score is in the 91st percentile among students in the sa…
C. The student has a higher IQ score than 91% of the students in the same age group.
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make a prediction about which rocket design will perform better in a co…
Design A will perform better. To determine this, we consider the sum of the three highest flight heights (as the contest scores based on the sum of three flights). For Design A, t…
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question 1 (multiple choice worth 2 points) (histograms and line plots …
The correct option is the second one: (4, 7, 11, 13, 14, 19, 22, 24, 26, 27, 29, 31, 33, 35, 36, 38, 40, 42, 42, 42)
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to the nearest tenth. dot plot: number line 1–10, dots at 2 (1), 3 (2),…
s 13. \(\boldsymbol{5}\) 14. \(\boldsymbol{5}\) 15. Circle data values 4, 5, 6 (dots at 4, 5, 6). 16. Correct options: \(\boldsymbol{A, D}\)
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13. what is the mean of the data? ______ 14. what is the median of the …
5 #### Question 14:
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set up the percent proportion for the following application problem. do…
\(\frac{n}{200}=\frac{34.7}{100}\) (where \(n\) is the number of people who said they get their news from television)
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bobby’s football team received four five-yard penalties in the first qu…
-20 yards
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the chaser, by john collier alan austen, as nervous as a kitten, went u…
Since no specific question is provided about the text (e.g., analysis of characters, themes, literary devices, or a comprehension question), it's not possible to give a targeted a…
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for problems 10–12, use the following information. eight stores at the …
### Problem 10: Median of the Prices First, we need to sort the prices in ascending order. The prices are: $32, $35, $40, $38, $42, $37, $35, $44. Wait, let's list them correctly:…
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a pet store sold the animals listed in the table in one week. write the…
The ratio of cats to pets sold that week is \(14:35\) (or simplified as \(2:5\)).
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a group of adult males has foot lengths with a mean of 27.11 cm and a s…
For option A: The lower limit is $24.19$ and the upper limit is $30.03$. So we fill $24.19$ and $30.03$. For option C: The value to fill is $30.03$ because $30.3$ is greater than …
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a group of adult males has foot lengths with a mean of 27.11 cm and a s…
Significantly high values are \( \boldsymbol{30.03} \) cm or higher.
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a group of adult males has foot lengths with a mean of 27.11 cm and a s…
24.19
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body and exam measurements were collected from 300 subjects. the pulse …
within two standard deviations of
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question 14 (multiple choice worth 2 points) (rates mc) pedro scored 98…
$\frac{98}{5}$ points per game (the option with $\frac{98}{5}$ points per game) ### Question 15
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the following is a list of shoe sizes for a group of 12 people. 4.5, 7,…
The first box plot (the one with the x - axis labeled from 3 to 12 and the box plot with the left whisker starting near 4.5, box with Q1 around 6 - 7, median at 7.5, Q3 around 9 -…
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body and exam measurements were collected from 300 subjects. the pulse …
60.0 beats per minute is neither significantly low nor significantly high. The significantly high values are 94.6 beats per minute or higher.
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body and exam measurements were collected from 300 subjects. the pulse …
46.2
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the brain volumes (cm³) of 20 brains have a mean of 1186.6 cm³ and a st…
B. Yes, because it is above the upper limit separating value.
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the brain volumes (cm³) of 20 brains have a mean of 1186.6 cm³ and a st…
1428.0
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8. use tools eight chickens on a farm are weighed. their weights are 5.…
Mean: \(6.0375\) pounds, Mean Absolute Deviation: \(0.321875\) pounds ### Question 9
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the brain volumes (cm³) of 20 brains have a mean of 1186.6 cm³ and a st…
945.2
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question 8 (multiple choice worth 2 points) (box plots mc) the box plot…
The range is 38, and the IQR is 21. (The option corresponding to this statement)
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how did income distribution in the us change in the early 2000s? ○ the …
C. The gap between rich people and poor people increased.
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in designing a work desk, it is found that males have sitting knee heig…
s: a. \(\boldsymbol{\text{C. Heights that are less than 19.9 in.}}\) b. \(\boldsymbol{\text{A. Heights that are greater than 25.9 in.}}\) c. Heights that are greater than 19.9 in.…
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statistical measurements mc the list represents a students grades on te…
The mean is 72.9 and shows that the student has an average grade and understanding of the subject but struggles at times. ### Question 2 (Range Calculation)
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in designing a work desk, it is found that males have sitting knee heig…
To solve this problem, we use the range rule of thumb, which states that significant values are typically outside the range of \(\text{mean} - 2 \times \text{standard deviation}\)…
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in designing a work desk, it is found that males have sitting knee heig…
C. Heights that are less than 19.9 in.
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the spinner below is spun once. spinner with numbers 1–16 column 1: t: …
\(\frac{1}{2}\)
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find the equation for the least squares regression line of the data des…
\( y=-0.053x + 17.101 \)
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sandeep wants to determine how much bottled water he should stock in hi…
188
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vocabulary choose the correct term from the vocabulary box. 2. a ____ i…
box plot ### Question 3
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use the range rule of thumb to identify the values that are significant…
s: - Significantly low: B. Test scores that are less than $12.5$ - Neither significantly low nor high: C. Test scores that are between $12.5$ and $32.9$ (assuming option C is stru…
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(from lesson 2.12) xenia converted 3/4 to a decimal and got 1.3. she th…
Xenia likely divided the numerator and denominator in the wrong order (did \(4\div3\) instead of \(3\div4\)). The correct decimal for \(\frac{3}{4}\) is \(0.75\).
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the table shows the number of books davie has read. find the ratio of g…
\(\frac{5}{12}\)
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a survey wanted to determine if there was a relationship between the nu…
To create the scatter plot: 1. **Define Axes**: Let the x - axis represent temperature (in °F) and the y - axis represent the number of joggers. 2. **Plot Points**: For each row i…
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the race speeds (in minutes) for the top eight cars in a 200-mile race …
D. 3.4 minutes
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listed below in order are prices in dollars for a big mac hamburger in …
A. The range alone tells us that there are very substantial differences among prices of Big Mac hamburgers in different countries.
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listed below in order are prices in dollars for a big mac hamburger in …
The variance is \(\boxed{2.26}\) dollars\(^2\)
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listed below are the amounts (dollars) it costs for marriage proposal p…
- Range: 2712 dollars - Standard Deviation: 770.0 dollars - Variance: 592751.9 dollars²
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multiple choice question which prefix means cartilage? o phag- o os- o …
O chondr-
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listed below are the amounts (dollars) it costs for marriage proposal p…
The standard deviation of the sample data is approximately $\boldsymbol{770.0}$ dollars.
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listed below are the amounts (dollars) it costs for marriage proposal p…
The range of the sample data is \(\boldsymbol{2712}\) dollars.
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3. shaquita flipped a fair coin 50 times. the table below shows her res…
50% (Option: 50%) ### Question 4
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listed below are the amounts (dollars) it costs for marriage proposal p…
2712
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listed below are prices in dollars for one night at different hotels in…
\( 3696.6 \) dollars²
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select the text from the paragraph that best helps you understand that …
in the years since, Americans have continued to work towards his dream
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extrapolate! we recommend using the desmos graphing calculator. answers…
Approximately 33 (within 5% tolerance, values between 31.3 and 34.7 are acceptable)
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here are 6 celebrities with some of the highest net worths (in millions…
C. Because the data are from celebrities with the highest net worths, the measures of variation are not at all typical for all celebrities. ### Second Question (Based on the natur…
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select the text from the paragraph that best helps you understand that …
In fact, many consider him to be one of the greatest leaders of the twentieth century.
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extrapolate! we recommend using the desmos graphing calculator. answers…
\( 136 \) (with 5% tolerance, the range is \( 136\times(1 - 0.05)=129.2 \) to \( 136\times(1 + 0.05)=142.8 \), and our calculation is within this range)
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here are 6 celebrities with some of the highest net worths (in millions…
C. Because the data are from celebrities with the highest net worths, the measures of variation are not at all typical for all celebrities. ### Second Question (Precision of Amoun…
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here are 6 celebrities with some of the highest net worths (in millions…
C. Because the data are from celebrities with the highest net worths, the measures of variation are not at all typical for all celebrities.
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here are 6 celebrities with some of the highest net worths (in millions…
28
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instructions: read the six scenarios that follow and identify the commu…
A. aggressive ### 2.
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9–20: should you believe this study? based solely on the information gi…
Yes, we have reason to question. The sample is from only ten specific restaurants, not representative of all fast - food workers in the large city, so the results may be biased. #…
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here are 6 celebrities with some of the highest net worths (in millions…
28
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here are 6 celebrities with some of the highest net worths (in millions…
764414
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here are 6 celebrities with some of the highest net worths (in millions…
2250
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below are the jersey numbers of 11 players randomly selected from a foo…
\( 572.4 \)
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below are the jersey numbers of 11 players randomly selected from a foo…
\( 23.9 \)
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below are the jersey numbers of 11 players randomly selected from a foo…
68.0
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word | prefix | root | definition disconnect | dis | connect | to separ…
To solve for the missing parts (prefix, root, definition) of each word, we analyze word structure (prefix + root = word, and use prefix/root meanings for definition): ### embed - …
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the owner of a manufacturing plant employs eighty people. as part of th…
C. \(107.0\space\text{mi}^2\)
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instructions read the question carefully and select the best answer. wh…
C. Irreproachable
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the speed of an average garden snail is estimated to be 6.045 × 10^-7 m…
\( 0.0000006045 \)
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find the variance for the given sample data. round your answer to one m…
C. 7.8
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fill in the blank. the square of the standard deviation is called the _…
variance
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find the standard deviation for the given sample data. round your answe…
D. 8.35
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judicial branch the judicial branch explains what laws mean, uses laws …
To answer the questions about the Judicial Branch (from the provided slides): ### WHO: Who makes up this branch? From the left slide, the judicial branch is made up of the Supreme…
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5. here is the recursive definition of a sequence: ( f_1 = 60 ), ( f_n …
This sequence is arithmetic. Because the recursive formula shows that each term is obtained by subtracting a constant (\(8.5\)) from the previous term, meaning there is a common d…
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find the standard deviation for the given sample data. round your answe…
A. 5.4
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multiple choice question what is the meaning of the prefix epi-? o side…
B. upon (assuming the options are labeled as A. side, B. upon, C. center, D. below)
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which of the following is not a property of the standard deviation? cho…
B. When comparing variation in samples with very different means, it is good practice to compare the two sample standard deviations.
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question 11 (1 point) saved listen according to our text, collectivizat…
D. the seizure of private property by the state and its conversion into state owned property.
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multiple choice question that prefix that means layer is ______. o squa…
O strat-
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identify the symbols used for each of the following: (a) sample standar…
a. The symbol for sample standard deviation is \( s \). b. The symbol for population standard deviation is \( \sigma \). c. The symbol for sample variance is \( s^{2} \). d. The s…
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the depths (in inches) at which 10 artifacts are found are listed. comp…
34.4
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the prices (in dollars) of 12 electric smooth top ranges are listed bel…
C. $910$
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what is the correct meaning of the prefix pseud-? ○ layer ○ many ○ fals…
C. false
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which measure of variation is most sensitive to extreme values? choose …
Range (the option labeled "Range")
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explain how to find the range of a data set. what is an advantage of us…
D. The range is found by subtracting the minimum data entry from the maximum data entry. ### Part 2: Advantage of using range as a measure of variation
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fix any punctuation or capitalization errors below. click \submit answe…
I spent the afternoon taking a nap; meanwhile, Shrek was busy cleaning, doing laundry, and going grocery shopping.
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set a choosing the right word select the boldface word that better comp…
To solve these vocabulary - context matching problems, we analyze each sentence based on the meaning of the words and the context: ### Question 1 - **Analysis of words**: "rectifi…
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the box-and-whisker plot below represents some data set. what is the mi…
17
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\payah kun,\ said the eldest magician, meaning, \that is quite right\; …
D. "Ho! Fisher of the Moon, are you playing with the Sea?"
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find the area of the shaded region. the graph to the right depicts iq s…
0.2514
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the table shows the number of students in the senior class and the numb…
315
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“payah kun,” said the eldest magician, meaning, “that is quite right”; …
D. whimsical
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the accompanying bar graph shows the resident population and the land a…
9.2
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read the excerpt from \the crab that played with the sea\ he went north…
- the repetition of words and patterns - the use of animals to tell a magical story