Statistics & Probability
Data analysis, probability distributions, hypothesis testing, and statistical methods.
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a professor records the following final grades in one course. construct…
For the "Total" row: - Frequency: \( 24 \) - Cumulative frequency: \( 24 \)
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the table shows the educational attainment of the population of a certa…
\(\frac{37}{56}\)
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you randomly select one card from a 52-card deck. find the probability …
$\frac{2}{13}$
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you are dealt one card from a 52-card deck. find the probability that y…
$\frac{12}{13}$
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review the passage. the hyperbole is shown in bold. true!—nervous—very,…
It produces a feeling of madness.
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you are dealt one card from a standard 52-card deck. find the probabili…
$\frac{1}{4}$
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nine cereal bars are shared equally by 4 students. how many does each s…
\( 2\frac{1}{4} \) (or \(\frac{9}{4}\))
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the students in a class collected data on the number of minutes some of…
2
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the line plot shows the weights of pieces of fruit. what is the total w…
A. $\frac{1}{2}$ pounds
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question a town has a population of 5000 and grows at 2% every year. wh…
5520
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use quadratic regression to find the equation for the parabola going th…
The coefficient of \( x^2 \) is \( \boldsymbol{6} \), the coefficient of \( x \) is \( \boldsymbol{13} \), and the constant term is \( \boldsymbol{-5} \). So the equation is \( y …
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a county board official is usually appointed to the position. this mean…
B. assignment
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choose the correct description of the mean below a. the mean is the sum…
## Mean: D. The mean is the sum of all the values divided by the number of values. It can be strongly affected by outliers ## Median: B. The median is the middle value in a data s…
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define and distinguish among mean, median, and mode choose the correct …
D. The mean is the sum of all the values divided by the number of values. It can be strongly affected by outliers
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choose the best answer to the following question explain your reasoning…
C. It should be closer to the mean because the mean is greater than the median and mode when the distribution is right - skewed
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which of the following numbers are greater than or equal to \\(\\frac{4…
C. $\frac{2}{3}$
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net grain production is the difference between the amount of grain a co…
A. India
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it can be said that a sample is representative of the population. what …
A. The results found for the sample are similar to those we would expect to find for the entire population
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you conduct a poll in which you randomly select 990 registered voters f…
D. The population is all registered voters in the state of Texas because this is the entire group that is being selected from randomly.
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3. the following pairs of expressions are not equivalent. how are their…
Taking part a: When $x = 9$, $\frac{1}{2}x=4.5$ and $x^{\frac{1}{2}} = 3$. $\frac{1}{2}x$ represents half of $x$, $x^{\frac{1}{2}}$ represents the square root of $x$. (Or for part…
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which pricing strategy provides vendors that sell a companys goods a di…
Distribution (the option labeled "Distrubution" - the last option in the list, with the text "Distrubution")
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16. sara starts a new job and deposits the same paycheck in her checkin…
The table is as follows: | x (Months) | 0 | 1 | 2 | 3 | 4 | 5 | |---|---|---|---|---|---|---| | y (Balances) | 700 | 1300 | 1900 | 2500 | 3100 | 3700 | So the values for the boxes…
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decide whether the statement below makes sense (or is clearly true) or …
C. No, the statement does not make sense. A sample is a subset of the population and cannot be larger than the population.
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by the end of this task, you should understand how the significance of …
120
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use the compound interest formula to determine the accumulated balance …
$7293.04$
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which central idea should be included in a paraphrase of this excerpt? …
A. The men sent by Odysseus to investigate the land they had landed upon became forgetful after eating Lotus plants.
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18. use the pattern to answer the questions. step 1 step 2 step 3 image…
s: a. Describe the pattern: The number of pentagons increases by 1 as the step number increases by 1. (Step 1: 3, Step 2: 4, Step 3: 5) b. How many pentagons are in Step 0? \(\bol…
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12. complete the table to show the rate of change x y 0 1 7 2 13 3 19 4…
When \(x = 0\), \(y = 1\); when \(x = 4\), \(y = 25\); when \(x = 5\), \(y = 31\) The completed table is: | \(x\) | \(y\) | | --- | --- | | \(0\) | \(1\) | | \(1\) | \(7\) | | \(2…
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16. use the pattern to answer the questions. step 1 step 2 step 3 a. ra…
s: a. Rate of change (slope): \(\boldsymbol{3}\) b. How many circles are in Step 6: \(\boldsymbol{20}\) c. How many circles are in Step 0: \(\boldsymbol{2}\)
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the scatter plot and line of best fit below show the length of 10 peopl…
55
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jinders math teacher plots student grades on their weekly quizzes again…
91 (assuming the line of best fit has a slope of 7 when x is hours and y is quiz score, or correcting the axis mix - up, the quiz score is approximately 91)
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the scatter plot and line of best fit below show the length of 14 peopl…
The predicted femur length for a height of 229 cm is 72 centimeters.
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review the passage. the hyperbole is shown in bold. ann - margret broug…
It creates a feeling of nostalgia.
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the scatter plot and line of best fit below show the length of 14 peopl…
96
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jay jenkins takes out a 10.5% simple interest loan today that will be r…
\( 7416.35 \)
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review the passage. the simile is shown in bold. oh! but he was a tight…
It illustrates Scrooge's unfriendly personality.
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a toy is regularly priced at $111. for a sale, the price was reduced by…
### Part (a) # Explanation: ## Step1: Understand Proportion for Percent A percent reduction means the reduction \( x \) is to the original price (\( 111 \)) as the percent reducti…
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5. kimora is planning a movie night event in which she will show three …
336
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trey bought a sofa on sale for $139.20. this price was 24% of the origi…
The original price of the sofa is $580.
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review the passage. the hyperbole is shown in bold. nations are possess…
It stresses the value of thoughtfulness.
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what is the meaning of the word ashore in the sentence? as the storm ap…
onto the land
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a researcher studied the relationship between the number of times a cer…
108
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how is maibon different by the end of the story \the stone\? ○ he compl…
He appreciates the changes in the world even if it means he ages.
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the scatter plot and line of best fit below show the length of 12 peopl…
The predicted height is \(212\) centimeters.
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instructions read the question carefully and select the best answer. wh…
B. noun | acceptance of something undesirable or inevitable
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what is a theme of the story \the stone\? ○ wishful thinking can lead t…
Selfish behavior hurts loved ones most.
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the chart shows the relationship between femur length (x - axis, in cen…
(Assuming the question is to find the height - femur length relationship or a specific height. If we take the line equation \(y=\frac{7}{3}x + 58\), and if we want to find the hei…
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tony opened a hot - dog stand last april. he borrowed $6100 to pay for …
\( 6455.83 \)
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review the passage. the verbal irony is shown in bold. singer: (singing…
It suggests that Phoebe thinks that the singer is unoriginal.
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1. a leaky faucet loses 0.35 l of water in an hour. how long will take …
60 hours
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review the passage. the simile is shown in bold. if you could slice dee…
It illustrates that the earth's crust is fragmented.
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what is the meaning of the word summoned in the sentence? when the boys…
called
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find the missing number in the proportion \\frac{9}{15} = \\frac{3}{x} …
\(x = 5\)
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equations of lines of best fit carol schoen... make an equation of the …
The equation of the line of best fit is \(y=\frac{2}{3}x + 60\) (the option with \(y = 2/3 x + 60\)).
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equations of lines of best fit carol equations of lines of best fit use…
20 = -10(x) + 45 (the second option from the left, or the option with "20 = -10(x) + 45")
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4. a club is hosting an election for the positions of president, vice p…
360
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equations of lines of best fit cristina leal multiple-choice question w…
\( y = -10x + 45 \)
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multiple-choice question what is the slope of the trend line? (hint - l…
B. 2/1 = 2 (assuming the option with "2/1 = 2" is the correct one. Wait, the options are: - - 10/1=-10 - - 2/1=-2 - 2/1 = 2 - 10/1 = 10 Since the trend line is increasing (positiv…
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multiple choice 1 point what facilitated the spread of the protestant r…
- Question 34: The printing press - Question 35: Verification, precision, accuracy and rigorous analysis in all fields of inquiry
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two data sets are summarized in the box plots shown. plot a number line…
D. The interquartile range of plot B is the same as the interquartile range of plot A.
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name directions: use the following equations to answer the following sp…
The average speed of the football is 20 meters per second. ### Problem 2:
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a web site reported in 2016 that 45% of all web traffic comes from lapt…
\(0.0825\)
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7 language family a a type of language that consists of words and phras…
C. A collection of languages related to each other through a common ancestor long before recorded history.
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given g(x) represented in the table and h(x) = g(x) − 7, determine h(0)…
-15
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6 official language a a language mutually understood and commonly used …
D. The language adopted for use by the government for the conduct of business and publication of documents. A collection of languages related to each other through a common ancest…
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a scuba diver descends farther down into the ocean from an initial dept…
\( r\leq13.84 \) (the option with \( r\leq13.84 \))
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red 3 blue 3 green 4 yellow 11 purple 12 based on these results, expres…
55% (Option: D. 55% if options are labeled, but here the last option is 55%, so the correct option is the one with 55%.)
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4 language branch a a type of language that consists of words and phras…
B. A collection of languages related to each other through a common ancestor long before recorded history.
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multiple-choice question what does the sight of eight kings and banquo …
C. Banquo's descendants will eventually become kings. (Note: Assuming the options are labeled A, B, C, D with the third option as C; adjust label if original options have differen…
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use the graph of the scatter plot to answer the question. based on the …
C. 1
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select the word in the sentences from paragraph 8 that comes from a lat…
supposition
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review the fifth paragraph. 5 some people may doubt memoir not because …
It is contradictory to state that compelling memoir is profitable and also that there is no reason to embellish a memoir.
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1 language a a type of language that consists of words and phrases that…
C. special words or expressions that are used by a particular profession or group and are difficult for others to understand.
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a food truck that travels all over the country sells hot chocolate duri…
C. \( y = 6.9x + 105 \)
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a piano teacher tracks the number of audience members for a recital to …
C. The slope is \(2.8\). For every additional performer, there is a predicted increase of \(2.8\) audience members.
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15. peyton owns a small business selling used books. she knows that in …
.72
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the word diplomatic means: none of the above to give up something to be…
To respect others, valuing their perspective, and being sensitive to their concerns.
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the table below shows the discrete probability distribution of the rand…
\(1.1\)
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use the line of fit, $hat{y} = 0.333x + 3.7$, to predict how many meets…
10.36; this is extrapolation because it is far outside the domain of hours of practice.
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12 dialect a a language mutually understood and commonly used in trade …
C. A regional variety of a language distinguished by vocabulary, spelling, and pronunciation.
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11 lingua franca a our spoken, written, or signed words and the ways we…
D. A language mutually understood and commonly used in trade by people who have different native languages
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instrument # of students guitar 13 bass 10 drums 10 keyboard 2 instrume…
A. 33/35
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10 literary tradition a a language mutually understood and commonly use…
B. A collection of languages related to each other through a common ancestor long before recorded history.
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multiple-choice question what does laissez-faire mean? \study the class…
B. "leave it alone" (assuming the options are labeled with letters where "leave it alone" is option B, if the original options had labels like A, B, C, D with "leave it alone" as …
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shopping time and spending money spent (dollars) time shopping (minutes…
Causation is unlikely, since there could be a third variable causing the increase in the customer's money spent.
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guitar 11 bass 5 drums 14 keyboard 13 guitar 4 bass 8 drums 7 keyboard …
.74
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the following data were collected. | x | 15 | 18 | 22 | 25 | 30 | | y |…
\(\hat{y}=- 0.754x + 42.380\)
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12. a bag contains 4 yellow, 3 blue, and 3 orange marbles. what is the …
7/10 (corresponding to the option with 7/10)
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in its first year of operation, big lake camp had 40 campers. this year…
72
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consider the scatter plot with line of fit. determine the direction of …
There is no relationship (no positive or negative direction) between the independent and dependent variables.
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11. a bag has 3 red, 4 blue, and 5 green chips. what is the probability…
7/12 (corresponding to the option with 7/12)
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3 compreh check points beads to make hair barrettes with a beauty propo…
B. Aponi uses 75 beads to make each hair barrette. ### Second Problem (Part a - Equation Setup)
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a computer repair technician records the time spent on various projects…
The \(y\)-intercept is \(115\). When no time is spent working, the technician is predicted to earn \(\$115\).
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10. what is an outcome? * a. the event with the greatest probability b.…
C. A possible result of a probability experiment
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berlin, germany, and el calafate, argentina, are about the same distanc…
A. \( y = -\frac{4}{7}x + 95 \)
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3. select the best answer. what does eed to know\ mean? ○ it means that…
B. It means that only certain people need to know information so that they can do their jobs.
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9. a spinner is divided into 6 equal sections labeled 1, 1, 2, 3, 4, 4.…
1/2
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part 2 what do the slope and y-intercept represent in the situation? ch…
Slope: A. bracelets Aleksandar makes each day y - intercept: C. bracelets Aleksandar bought at the craft fair
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benito and tyler are painting opposite sides of the same fence. tyler h…
It will take \( 4.875 \) minutes. \( 73.125 \) feet will be painted on Benito’s side. (For part b: Tyler’s total length when Benito catches up is also \( 73.125 \) feet. Tyler’s s…
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read this section from the passage: i will go tell him of fair hermia’s…
It shows that Helena understands that her plan will hurt both Demetrius and herself if she succeeds.