Statistics & Probability
Data analysis, probability distributions, hypothesis testing, and statistical methods.
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here is a sentence from the news story: they might make changes to the …
B. Appear
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the graph shows the distribution of the lengths (in seconds) of videos …
189 seconds
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the graph shows the distribution of the length of videos (in seconds) o…
95%
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what would the height need to be for this curve to be a density curve? …
\(\frac{1}{12}\)
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which statement about the graphs is true? graph a graph a is a valid de…
Graph B is a valid density curve because the curve is above the horizontal axis, and the area under the curve is 1.
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how does the authors use of imagery in the description of the station c…
8. C. Heroism is defined by selfless courage in the face of danger. 9. B. His heart burned not with fear, but with duty and courage
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question 3 (1 point) a useful method of expressing very small or very l…
scientific notation ### Question 4
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complete each sentence to make a true statement. the theoretical probab…
The theoretical probability of rolling a 2 on a single roll of a number cube is \(\frac{1}{6}\). The theoretical probability of landing on blue on a single spin of a spinner with …
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identifying theoretical probability complete each sentence to make a tr…
The theoretical probability of rolling a 2 on a single roll of a number cube is \(\frac{1}{6}\). (Assuming a fair 6 - faced cube). For the spinner (assuming 6 sections with 2 blue…
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what is the difference between \quemar\ and \quemar se\? none. both wor…
"Quemar" is to burn something. "Quemarse" is to burn oneself.
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read the quote. what is the meaning of sovereignty as it is used in thi…
B. ranking authority
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sean created this table to represent the balance of his loan, y, over a…
interpolation
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sean created this table to represent the balance of his loan, y, over a…
$69.17$
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read the paragraph. music is an important element of a students educati…
This is just one example of the benefits schools get from offering music classes to their students.
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step 4: use the associative property of addition to group like terms. (…
- A. The total cost of tickets for the 8 friends. - B. The number of friends in the group.
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read the definition and the quote. which word means the same as amend a…
D. modify
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to alter something formally \so, the constitution includes rules to ame…
D. modify
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look at this dictionary entry. bemused \\bih - myoozd\\ adjective more …
The judge was bemused by the defendant's decision to represent himself instead of accepting counsel.
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step 4: identify the type of number that must be chosen based on the ru…
Step1: \(5(x+( - 4))+3x+( - 9x)+7\) Step2: \(5x-20 + 3x+( - 9x)+7\) Step3: \(5x+3x+( - 9x)-20 + 7\)
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the article states: the shelves are custom - built from reclaimed hardw…
C. bends towards justice
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question 2 here is a sentence from the news story: all this information…
C. Logged
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the weights of five grapefruits are 7.47 ounces, 7.23 ounces, 6.46 ounc…
34 ounces
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the following venn diagram shows set a, b, and c inside a universal set…
\(A\cap B\cap C=\{9\}\)
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for the following seenarios, explain what direction the supply curve wo…
1. Right - increase (Technology). 2. Left - decrease (Subsidies and taxes). 3. Left - decrease (Number of sellers). 4. Right - increase (Subsidies and taxes). 5. Left - decrease (…
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example: observe the pattern $$\frac { 1 } { 11 } = 0. overline { 09 },…
A) \(\frac{5}{11}=0.\overline{45}\), \(\frac{9}{11}=0.\overline{81}\) B) \(\frac{7}{11}\)
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question determine if there is a positve, negative or no correlation: t…
Positive correlation.
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a weatherman tracked the number of rainy days in rome every month last …
\(7\) … center
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construct a venn diagram where ( u = { a, b, c, d, e, f, g } ), ( a = {…
- \(a\) and \(c\) are in the non - overlapping part of circle \(B\). - \(b\) and \(g\) are in the non - overlapping part of circle \(A\). - \(d\), \(e\), \(f\) are in the region o…
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determine if this is a positive, negative or no correlation: the number…
Negative correlation.
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determine the type of correlation represented in the scatter plot below.
No correlation.
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the infinitive acheter becomes acheté in the passé composé. what does a…
D. bought
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11. suanna collected information about a group of ponies and horses. sh…
- Linear regression equation: \(y = 127.65x - 1133.43\) - Correlation coefficient: \(r\approx0.99\) - Explanation: A correlation coefficient of approximately \(0.99\) (close to \(…
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10. a survey of 100 students was taken. it was found that 60 students w…
| |Watch Sports|Don't Watch Sports|Total| |---|---|---|---| |Like Pop|26|28|54| |Don't Like Pop|34|12|46| |Total|60|40|100|
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9. which expression represents \5 less than twice x\? (1) ( 2 x - 5 ) (…
The linear regression equation is \(y = 194.91x - 1879.27\). The correlation coefficient is \(r\approx0.99\). The correlation coefficient of approximately \(0.99\) indicates a ver…
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8. bella recorded data and used her graphing calculator to find the equ…
(1) \(0.9\)
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5. which situation does not describe a causal relationship? (1) the hig…
(1) \(y = 15x\)
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describe the association in the scatter plot below. answer attempt 1 ou…
The scatter plot shows a positive association because as the plotted values of \(x\) increase, the values of \(y\) generally increase.
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5. which situation does not describe a causal relationship? (1) the hig…
(2) 38.2
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3. ben had a part - time job at the fun station. suppose he worked 13.5…
Ben earns \( \$6 \) per hour.
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describe the association in the scatter plot below. answer attempt 1 ou…
The scatter plot shows a non - linear association because as the plotted values of \(x\) increase, the values of \(y\) first decrease and then increase.
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describe the correlation in the scatter plot below. answer attempt 1 ou…
The scatter plot shows a positive correlation because as the plotted values of \(x\) increase, the values of \(y\) generally increase.
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describe the correlation in the scatter plot below. answer attempt 1 ou…
The scatter plot shows a negative correlation because as the plotted values of \(x\) increase, the values of \(y\) generally decrease.
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describe the association in the scatter plot below. answer attempt 1 ou…
The scatter plot shows a negative association because as the plotted values of \(x\) increase, the values of \(y\) generally decrease.
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evaluate the function when ( x = - 3,0 ), and 5. 20. ( f ( x ) = x + 8 …
a. The number of people in the stadium at 2:00 P.M. is equal to the number of people in the stadium at 4:00 P.M. b. The number of people in the stadium at 5:00 P.M. is less than t…
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1. some adults were surveyed to find out if they would prefer to buy a …
(2) \(45.2\) ### Problem 2
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describe the association in the scatter plot below. answer attempt 1 ou…
The scatter plot shows a non - linear (or no clear linear) association because as the plotted values of \(x\) increase, the values of \(y\) do not follow a consistent linear incre…
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describe the correlation in the scatter plot below. answer attempt 1 ou…
The scatter plot shows a positive correlation because as the plotted values of \(x\) increase, the values of \(y\) generally increase.
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describe the correlation in the scatter plot below. answer attempt 1 ou…
The scatter plot shows a negative correlation because as the plotted values of \(x\) increase, the values of \(y\) generally decrease.
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aficore: latin, meaning \do something\ afición: spanish, meaning \fond …
someone who is knowledgeable about and enjoys a certain activity or hobby
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mateo plays on his school basketball team. from past history, he knows …
# Ex[SSE Completed, Client Connection Error][SSE Completed, Client Connection Error][LLM SSE On Failure]
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an online customer service department estimates that about 15 percent o…
E. 0.810
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in a parking lot with 200 cars, 50 cars are white, 30 cars are red, and…
E. \(0.6\)
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the probability that a randomly selected visitor to a certain website w…
E. No, because \(0.40\) represents probability in the long run over many visits to the site.
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a store owner reports that the probability that a customer who purchase…
A. For all customers who purchase a lawn mower, 68% will also purchase an extended warranty.
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a fair die with its faces numbered from 1 to 6 will be rolled. which of…
A. For many rolls of the die, the long - run relative frequency of a number less than 3 landing face up is \(\frac{1}{3}\)
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a middle school chess club has 5 members: adam, bradley, carol, dave, a…
B. \(\frac{1}{10}\)
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the probability of choosing a green grape out of the bag that contains …
likely
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at a sporting event, cheerleaders will throw 50 bundled t - shirts into…
E. 0.80
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the probability of choosing an apple - flavored juice box out of the re…
certain
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which events have a probability of 25 percent? choose three correct ans…
choosing a spade out of a standard deck of cards, choosing a green jelly bean out of a bag that contains 2 green jelly beans, 1 red jelly bean, and 5 yellow jelly beans, spinning …
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which events have a probability of 25 percent? choose three correct ans…
choosing a spade out of a standard deck of cards, choosing a green jelly bean out of a bag that contains 2 green jelly beans, 1 red jelly bean, and 5 yellow jelly beans, spinning …
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as a promotion, the first 50 customers who entered a certain store at a…
A. Yes, because \(P(F\cap S) = 0\)
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5. how many weekend days are there in march? ________ 6. roger has succ…
c. Roger may catch or drop the 11th pass.
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what is the probability of the complement of rolling a number less than…
\(\frac{1}{3}\)
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the table shows data that were collected from people who attended a cer…
A. Rooting for the home team and rooting for the away team
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what is the probability of an event that is certain?
\(1\)
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a high school science teacher has 78 students. of those students, 35 ar…
A. No, because \(P(B\cap S)=\frac{5}{78}\)
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if the probability of an event is 2/7, what must be the probability of …
\(\frac{5}{7}\)
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3. what is the effect of the following sentence on the meaning of the s…
C. It implies that conversing with her mother makes the narrator feel depleted and uncertain.
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the cooler at a picnic contained 4 apple juice boxes, 8 orange juice bo…
\(\frac{5}{9}\)
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if ( p(\text{not yellow})=\frac{4}{15} ), which best describes the prob…
\(P(\text{yellow})=\frac{11}{15}\)
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the probability of choosing a rotten apple from the bag of apples is $\…
likely
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this list shows the tips marcus received one night. $2.50, $3.00, $3.25…
A. The median and interquartile range increased.
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which value cannot represent the probability of an event occurring? 3/2…
\(\frac{3}{2}\)
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the list shows amys test grades. 85, 88, 90, 92, 100, 50 amys teacher d…
A. The mean and the median both increase.
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your teacher is giving out fruit for lunch. a paper bag contains 4 appl…
1. Probability of picking an orange: \(\frac{4}{9}\) 2. Complement event probability: \(\frac{5}{9}\) 3. Orange is more likely to be chosen.
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a sock drawer contains 5 different colors of socks. it has 20 white, 10…
\(\frac{1}{5}\)
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alanna compared her science and math test grades. her results are shown…
A. The median of her math grades is larger than that of her science grades, but the interquartile range of her science grades is larger than that of her math grades.
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78% of children eat three meals a day. what sentence represents this st…
78 of 100 children eat three meals a day.
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there are 30 black chips, 25 white chips, 40 blue chips, and 5 red chip…
30%
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two class 6 students have two different classes (the number of hours th…
D. The mean for class 2 is higher, but the median for class 1 is higher.
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caitlyn calculated the probability of the complement of rolling a numbe…
Yes, the probability should be \(\frac{1}{3}\).
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marla records the total rainfall, in centimeters, each month in april a…
C. The mean of April is larger than the mean of May, but the standard deviation of April is smaller
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understanding probability understanding opposite events a bag contains …
choosing a blue or purple marble
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a bag contains 2 blue, 1 red, and 2 purple marbles. the complement of c…
\(\frac{4}{5}\)
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you slept 10 hours last night. true or false: you slept 41.7% of the da…
True
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harper and mark sold t-shirts for a fundraiser. they recorded in lists …
D. Mark had the higher mode.
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which pair does not represent the probabilities of complementary events…
\(0.25\) and \(0.50\)
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which set of data is displayed in the box plot shown below? a 2, 3, 4, …
D. \(2,2,4,4,5,5,7,7,8,10\)
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use the given formula to calculate the probability probability = \\frac…
\(\frac{1}{2}\)
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which of the following are ways to express the same probability? choose…
$30\%$, $\frac{3}{10}$, $0.3$
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what is the meaning of the prefix mis-? a a young lady b ad not hitting…
C. Not hitting the target
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which of these values cannot represent the probability of an event happ…
\(1.2\)
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the data below show the donations, in dollars, a charity received from …
B.
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calculating probability what is the probability of landing on an even n…
\(50\)
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which of the following events has a probability of 1? choose three corr…
- drawing a red card from a stack of 20 red cards - getting a heads or a tails when flipping a coin - landing on a blue or red space on a spinner with 1 blue space and 1 red space
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if the writer takes time to describe the setting of a scene, this means…
The setting is important to understand the scene.
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figurative language is a type of language where the authors implied mea…
True
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identifying events with probability of 1 which of the following events …
"getting a heads or a tails when flipping a coin" and "landing on a blue or red space on a spinner with 1 blue space and 1 red space" (assuming standard all - inclusive, non - ove…
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complete each statement. an event with a probability of 0 is an event w…
An event with a probability of \(1\) is certain. An event with a probability of \(0\) is impossible.