Statistics & Probability
Data analysis, probability distributions, hypothesis testing, and statistical methods.
-
this venn diagram shows students favorite school subjects. what is the …
11
-
find a. the mean; b. the deviation from the mean for each data item; an…
165
-
a. the mean is 58. (simplify your answer.) b. complete the following ta…
0
-
2. the data below show the number of hours of sleep ten students got la…
The percentile for the student who slept 7 hours is 40. ### Part b
-
find a. the mean; b. the deviation from the mean for each data item, an…
### Part b: Calculating Deviations from the Mean To find the deviation from the mean for each data value, we use the formula: Deviation = Data Value - Mean Given the mean is \( 58…
-
read the passage from animal farm. \you have heard then, comrades,\ he …
The animals do not complain about pigs in power breaking rules.
-
find a. the mean; b. the deviation from the mean for each data item; an…
\(58\)
-
a. type the deviation from the mean for each of the data items. (simpli…
0
-
a. find the deviation from the mean for each of the data items b. find …
a. The deviations from the mean are: \(-54\), \(-42\), \(-30\), \(0\), \(36\), \(90\) (corresponding to data points \(18\), \(30\), \(42\), \(72\), \(108\), \(162\) respectively) …
-
correctly. in which sentence does the meaning of reservation match the …
C. On many reservations, a tribe has its own schools and a community center where they celebrate their traditions.
-
multiple - choice question why is america not a true democracy? too man…
Neither option is correct. A country's status as a democracy is determined by factors like electoral fairness, representation, civil liberties, and power distribution, not populat…
-
find the range for the group of data items. 20, 21, 22, 23, 24 the rang…
\( 4 \)
-
read the sentence. when i told the doctor of my sinus pain and nasal pr…
a substance that reduces congestion
-
read the excerpt from chapter 6 of animal farm. \you have heard then, c…
Corrupt leaders use propaganda to remain in power.
-
in general, what conveys meaning in a poem? the attitude a poet has abo…
the words a poet chooses about a subject
-
select all that apply identify the true statements about reporting a bi…
- The committee sends a written report to Congress, explaining the changes to the bill and why the full Congress should or should not pass the bill. - When all changes to a bill h…
-
4. given the histogram below, calculate the mean and standard deviation…
To solve this problem, we first need to determine the data values from the histogram. Let's assume the midpoints of each bar (or the data values) and their frequencies: - Let's li…
-
9. a grammy award winner must choose from one of 4 dresses, 3 earrings,…
1. D. 24 2. C. \(\frac{3}{8}\) 3. B. \(\frac{1}{5}\)
-
from 6 - 8 in a group of 100 students 50 are eating whataburger (w) and…
6. A. 10 7. D. $\frac{40}{100}$ 8. C. $\frac{40}{60}$
-
3. 1800 freshmen were admitted to greenville tech this fall. the scores…
95% ### Part 3: What percent of students scored between 430 and 700?
-
read the paragraph. teaching the rambunctious group of canines at the o…
break
-
read the excerpt from \keynote address.\ if we cut down our institution…
pathos
-
1 \some historians believe the confederacy first came together about 90…
A. A political and cultural alliance
-
2. 2000 freshmen at state university took a biology test. the scores we…
68% ### 3. What percentage of scores are between 60 and 85?
-
statistical modeling practice on the empirical rule and normal distri 1…
s: a) $\boldsymbol{50\%}$ b) $\boldsymbol{50\%}$ c) $\boldsymbol{68\%}$ d) $\boldsymbol{95\%}$ e) $\boldsymbol{99.7\%}$
-
question 9 of 20 read these sentences from the declaration of independe…
D. He uses parallelism to create a strong rhythm and memorable ideas.
-
select all that apply identify the true statements about reporting a bi…
- When all changes to a bill have been made, the committee votes either to kill the bill or report it. - To "report" a bill means to send it to the full House or Senate for action…
-
directions: choose the best answer to each question. 1) the companys in…
1. C. inventive 2. B. honesty 3. D. not connected to the topic 4. B. bizarre 5. C. authoritative
-
1 examine the primary motivations behind oklahomas significant latino i…
1. Driven by economic opportunities in agriculture and the meatpacking industry 2. It reclassified certain drug possession and property crimes from felonies to misdemeanors.
-
which statements describe the shahs rule of iran in the 1950s and 1960s…
A. He invested in industrialization and modernization. B. He suppressed free speech and other civil liberties. C. He signed lucrative oil deals with Western countries. E. He estab…
-
3) a sample of full - time workers in the u.s. were surveyed and asked …
The relationship between age and vacation days used is a negative, linear, and moderately strong association. As age increases, the number of vacation days used tends to decrease.…
-
when the author writes that whoever develops a plan to make children us…
deserves fame and admiration
-
read the passage from etiquette, by emily post. new yorks bad manners a…
justifiably criticized
-
use linear regression to find the equation for the linear function that…
\(y = 18.17x + 51.07\)
-
a literary symbol is an object that takes one or more meanings beyond i…
symbolic
-
2) match the correlation to its scatterplot by writing the value for r …
To match the correlation \( r \) to each scatterplot, we analyze the **direction** (positive/negative) and **strength** (clustering of points, \( |r| \) closer to \( \pm 1 \) is s…
-
name: 1) a group of high school students were asked how many ap classes…
Explanatory variable: Number of AP courses Response variable: Number of extracurricular activities ### Part (b)
-
eva peron was loved by her descamisados - a term meaning which of the f…
C. shirtless ones
-
4. a bus traveled a distance of 46 miles in 138 minutes. which graph ha…
A.
-
question 1 in a volatile housing market, the overall value of a home ca…
Part A: The vertex of \(V(x)\) is \((\frac{220}{21},\frac{2141000}{21})\) Part B: The \(x\) - coordinate (\(\approx10.48\)) means approximately \(10.48\) years after 2020 the valu…
-
born a crime chapter 16 by trevor noah 1 which american - based restaur…
s (Key Points): 1. McDonald’s 2. Owning a “smiley”, eating at McDonald’s, nice clothes, owning a car, etc. 3. Trevor’s entrepreneurial friend, involved in DJ/CD/smiley business, p…
-
what are the independent and dependent variables represented by the inv…
The independent variable is the number of hours worked because the variable changes (the worker can choose or have varying hours). The dependent variable is the amount earned beca…
-
9. in “letter from birmingham jail,” king cites t. s. eliot’s observati…
d. It applies to those Birmingham police officers who use legal, nonviolent means to handle demonstrators in public but do so to maintain the injustice of racial discrimination.
-
the dallas zoo recently celebrated the birth of two twin brown bear cub…
For the first question (which bear cub was heavier at birth and by how much): A. Mish was heavier by 1 pound For the second question (which bear cub is growing faster and by how m…
-
read the passage. of the more than 6,000 islands located off the greek …
culturally sophisticated
-
an office building has 8 floors above the ground. on a line graph that …
C. \(D = \{0,1,2,3,4,5,6,7,8\}\)
-
what are the independent and dependent variables represented by the inv…
The independent variable is the $\boldsymbol{\text{age of the person}}$ because the variable $\boldsymbol{\text{age of the person}}$ (is the explanatory variable, not dependent on…
-
gave her class a spelling test. distribution of scores in the class. sp…
The median is a more appropriate measure of center than the mean.
-
monitors the water quality of the lakes in cottonwood county. he takes …
The distribution of pH levels is best described as symmetric. So, the mean is an appropriate measure of center.
-
2. exercise if 37% of high school students said that they exercise regu…
The probability that 5 randomly selected high school students will say they exercise regularly is approximately \( 0.0069 \) (or \( 0.69\% \)). This event is unlikely to occur bec…
-
ch 5 predicting the response (y) using the regression equation to a val…
- First question: extrapolation. - Second question: Eighty percent of the variability in \(y\) is explained by the regression of \(y\) on \(x\).
-
ch 5* an owner of a home in the midwest installed solar panels to reduc…
prediction of gas used from degree - days will be quite accurate.
-
ch 5* an owner of a home in the midwest installed solar panels to reduc…
For the first part: prediction of gas used from degree - days will be quite accurate. For the second part: \(y = 1000 + 100x\)
-
ch 5 in a study, nine tires of a particular brand were driven on a trac…
All three statements are correct.
-
ch 5 if y is the response variable and x is the explanatory variable, w…
calculate the predicted value of \(y\) given a value for \(x\)
-
kids are hollering \6 - 7\ in the classroom 1. which statement identifi…
B. The phrase "6 - 7" became a widespread trend among students despite having no fixed meaning. ### Question 2
-
ch 5 which of the following measures the direction and strength of the …
correlation
-
ch 5 which of the following measures the direction and strength of the …
2.7
-
directions: identify the choice that best answers the question. 5. whic…
5. b. a longing for springtime while in the depths of an icy winter 6. d. in a lazy, passive way
-
ch 4* researchers measured the percent body fat and the preferred amoun…
0.30
-
ch 4 the correlation value, r, makes no distinction between the explana…
True
-
ch 4 the correlation value, r, makes no distinction between the explana…
\(0.74\)
-
ch 4 look at the following scatterplot. choose which description best f…
For the scatter - plot question: Direction: positive; form: non - linear; strength: weak. For the association - causation question: False.
-
ch 4* a statistics professor warns her class that her second midterm is…
- First question: \(+1\) - Second question: is the reaction time.
-
ch 4 does exposure to classical music (through instrument lessons or co…
- First question: the amount of a child's exposure to classical music. - Second question: scatterplot.
-
ch 4* the figure below is a scatterplot of school gpa against iq test s…
True
-
ch 4* researchers measured the percent body fat and the preferred amoun…
0.30
-
read these two excerpts, one from part 1 of the selection and one from …
A. helpful details about jobs for construction managers
-
12. what does it mean to contribute your best thinking?
Contributing your best thinking means applying your highest - level cognitive abilities (critical analysis, creativity, drawing on knowledge/experience) to generate clear, logical…
-
ch 5 in a study, nine tires of a particular brand were driven on a trac…
All three statements are True. 1. According to the least - squares regression line, we would predict a decrease in groove depth of \(11.39\) mils for each \(1000\) miles driven on…
-
ch 4 look at the following scatterplot. choose which description best f…
Direction: positive; form: non - linear; strength: weak
-
1 multiple choice 1 point sam is stacking blocks in a tall, straight to…
APL (assuming APL is the correct option related to physical/motor - based activities like block stacking; the exact meaning of APL, ESD, HPD, LDC should be based on the relevant d…
-
find the equation for the least squares regression line of the data des…
The equation of the least squares regression line is \( y \approx 12.368x + 29.638 \)
-
next, stem and leaf collected data on the amount of the compound added …
33.587
-
is it a crime for a citizen of the united states to vote? by susan b. a…
C. Women are judged under laws supposedly written only for males, so they are entitled to the same rights as males.
-
stem and leaf agriculture wants to add a new compound to its bags of su…
0.278
-
from where does the word \hurricane\ originate? aztec god \cana\ mayan …
B. Mayan god "Hurakan"
-
mels motorcars keeps track of the fuel economy of each used car sold. t…
The distribution of miles per gallon is best described as symmetric. So, the mean and median are both appropriate measures of center.
-
fish tanks number of tanks water temperature (°f) complete the sentence…
The distribution of the tanks' water temperatures is best described as symmetric. So, the standard deviation is a more appropriate measure of variation than the range.
-
which statement about an effective advocacy movement is true? it should…
It should focus on a meaningful issue.
-
suriya takes roscoe for walks and they wrestle, swim, and hang out. thi…
A. trust.
-
education was free. that subject my father had written about repeatedly…
US schools were free and were not exclusive.
-
given the data in the table, complete the sentence. using a line of bes…
extrapolation
-
linreg y = ax + b a = -1.96341463 b = 19.09756098 r2 =.9817073171 r = -…
\(0\)
-
consider the box plots, which represent the number of students enrolled…
High School 1’s data is skewed right, and High School 2’s data is normally distributed.
-
consider the box plots, which represent the number of students enrolled…
High School 1’s data is skewed left, and High School 2’s data is normally distributed.
-
read the excerpt from osa\ by rita dove. how she stood up when they ben…
It breaks apart the actions in the story to stress the importance of a moment.
-
step 1: find the rule in the table shown. output = 3|× input check step…
### Step 1: Determine the multiplier Looking at the table, when Input is 1, Output is 3. So \( 3 = \text{multiplier} \times 1 \), which means the multiplier is 3. So the rule is O…
-
read this passage taken from \how the spaniards came to shung - opovi, …
cultural differences between the Hopi peoples and the Spaniards, hardships of the Hopi peoples
-
4. what connection does dickinson make between nature and humans in the…
Nature, like humans, can be irritable and depressed.
-
a basketball coach records the number of points the team has scored dur…
The value 105 is an outlier that will skew the data to the right.
-
which algebraic expression means \four less than three times a number\?…
B. \( 3n - 4 \)
-
true or false: having good social health through meaningful connections…
True
-
the box plot represents the height, in inches, of basketball players. h…
The data set \(68, 69, 71, 74, 75, 76, 77, 78, 80\) (the second option among the given choices, assuming the second option is \(68, 69, 71, 74, 75, 76, 77, 78, 80\))
-
read \one generation passeth away and another cometh.\ what does this p…
Because life is fleeting, people must find a way to make an impact on the world.
-
segregation. for years now i have heard the word \wait!\ it rings in th…
Letter from a Birmingham Jail
-
read the excerpt from \on liberty and slavery.\ oh, liberty! thou golde…
People can lose hope when they have no freedom.
-
which statement best explains who earns the most money per item sold? d…
A. Drey a earns the most money per item sold because her line increases at a faster rate than Marsha’s.
-
3. how did whitmans and dickinsons poetry differ from the works of the …
A. They used new, unconventional forms that closely connected to a poem’s meaning.
-
consider the box plots, which represent the scores, in percents, of var…
- Test 1’s data is skewed right. - Test 2’s data is skewed left.