Estadística
Análisis de datos, distribuciones de probabilidad y pruebas de hipótesis.
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use the english and metric equivalents to the right, along with dimensi…
\(457.6\)
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a file that is 252 megabytes is being downloaded. if the download is 14…
42
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in the united states in 2018, approximately 8,000,000,000 pennies were …
Primera casilla: pennies Segunda casilla: quarters
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in the united states in 2018, approximately 8,000,000,000 pennies were …
4
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in the united states in 2018, approximately 8,000,000,000 pennies were …
1
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at a movie theater, the small bag of popcorn holds 8 cups of popcorn. t…
\(8\) \(\cdot\) \(150\%\) \(=\) \(?\) (where the "?" will be \(12\) when calculated, but the equation as per the problem's format is \(8 \cdot 150\% =?\))
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use the english and metric equivalents to the right, along with dimensi…
\(73.66\)
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in the united states in 2018, approximately 8,000,000,000 pennies were …
4
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9. ella is a landscape photographer. one weekend at her gallery she sel…
Small prints: 37, Large prints: 15
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in the united states in 2018, approximately 8,000,000,000 pennies were …
9
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suppose you roll a special 8 - sided die. what is the probability that …
\( \frac{1}{4} \) or \( 0.250 \)
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in the united states in 2018, approximately 8,000,000,000 pennies were …
4
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edith and rashida are shooting free throws. complete the ratio tables. …
For Edith's table: - Baskets (second column): \( 2 \) - Baskets (third column): \( 3 \) - Shots (fourth column): \( 12 \) - Shots (fifth column): \( 15 \) So the completed table h…
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question the number of newly reported crime cases in a county in new yo…
Regression Equation: \( y = 27.7x + 885.7 \) Final Answer: 1218
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3 select the correct answer. in paragraph 1, what does patrick henry cl…
D. It is out of proportion.
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each of the dot plots shown represents the number of glue sticks brough…
B) The standard deviation of the number of glue sticks brought in by each student for class A is equal to the standard deviation of the number of glue sticks brought in by each st…
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the scatterplot shows the relationship between two variables, x and y, …
A. \( y = 46.8 + 5.9x \)
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question 1 there are 55 students in spanish club. a sample of the spani…
A) 11
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at a movie theater, there are a total of 350 customers. each customer i…
D. 98
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a computer store buys a computer system at a cost of $370.80. the selli…
$494.40$
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think about the process karen purchased a dvd player on sale. the origi…
20
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think about the process karen purchased a dvd player on sale. the origi…
The percent markdown is approximately \(19.63\%\), and the first step is to find the markdown amount (original price - sale price).
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14. pizzas cost $12 each. zach wants to spend between $72 and $108, inc…
Zach can buy between 6 and 9 pizzas, inclusive. The compound inequality solution is \( 6 \leq n \leq 9 \) (where \( n \) is the number of pizzas), and the graph is a number line w…
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in a sample, 80% of the items are faulty. there are 88 faulty items in …
The total number of items in the sample is 110.
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which word means the opposite of \downplays\? appreciates participates …
D. exaggerates
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the secrets of cova dones name: history a cave in spain named cova done…
C. archaeologists from around the world will begin to study the unexplored sections of the cave
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construct a two - way table given the information below. the eighth gra…
| | Band | General Music | Total | |----------------|------|---------------|-------| | Like Pineapple Pizza | 45 | 19 | 64 | | Do not like pineapple pizza | 74 | 29 | 103 | | Tota…
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determine whether the following variable is quantitative or categorical…
Categorical
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what best describes the shape of the data distribution in the following…
Skewed to the right
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which type of graph would best show the number of students who get to s…
A. Bar graph
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which type of graph would best show the number of candy bars four kinde…
Picture graph (the option labeled "Picture graph" among the choices)
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which type of graph would best show the number of candy bars four kinde…
A bar graph (specifically a bar chart with four bars, one for each kindergartener, showing the number of candy bars they sold) would best show the number of candy bars four kinder…
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which type of graph would best show the height of a growing plant each …
Line graph
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8. on each of her exams this semester, emily has scored between 60 and …
C. Her mean score will increase.
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great states of happiness news across the us which u.s. state is number…
B. fearless
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3. at a certain summer camp there are ten 9-year-olds, six 12-year-olds…
The average age of the campers is \(\frac{195}{19}\) (or approximately \(10.26\) years old)
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incorrect your answer is incorrect. a certain forest covers an area of …
\( 946 \)
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r₁, r₁-m₁, (r₁-m₁)², r₂, r₂-m₂, (r₂-m₂)², r₃, r₃-m₃, (r₃-m₃)², r₄, r₄-m…
1. \(M_1 = 5\) 2. \(M_2 = 6\) 3. \(M_3 = 8\) 4. \(M_4 = 9\) 5. \(SS_1 = 20\) 6. \(SS_2 = 20\) 7. \(SS_3 = 14\) 8. \(SS_4 = 8\) 9. \(N = 24\) 10. \(GT = 168\) 11. \(\sum X^2 = 1298…
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ch 8 closure 3. a team of doctors reports in a medical journal that a d…
- 150: Initial amount of drug (at \( t = 0 \) minutes) in bloodstream, 150 ppm. - 0.997: Decay factor, drug is 99.7% of previous minute's amount (decays at 0.3% per minute). - Aft…
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the movement of the progress bar may be uneven because questions can be…
500 pounds (the option with "500 pounds")
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what is the equation of the trend line in the scatter plot? use the two…
\(y=\frac{1}{3}x + 30\)
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ms. clark earned $29,600 in her third year as a banker and $32,600 in h…
\(\$34,850\) (corresponding to the option \(\$34,850\))
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the number of ways six people can be placed in a line for a photo can b…
First question (value of \( 6! \)): 720 Second question (value of \( \frac{6!}{(6 - 2)!} \)): 30 Third question (value of \( \frac{6!}{(6 - 3)!3!} \)): 20
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let b equal the price of a bowl of plain phở and let n equal the price …
One possible solution is \( b = 7 \), \( n = 2 \) (Other valid solutions like \( b = 10,n = 1 \); \( b = 4,n = 3 \); \( b = 1,n = 4 \) are also acceptable)
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use a t - test to test the claim about the population mean μ at the giv…
- Hypothesis: B. \( H_0:\mu = 24 \), \( H_a:\mu eq24 \) - Standardized test statistic: \(-1.75\) - P - value: \(0.106\)
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test the claim about the population mean μ at the level of significance…
Fail to reject \( H_0 \). There is not enough evidence at the 1% level of significance to support the claim.
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a personnel director in a particular state claims that the mean annual …
### (b) Rejection Region The correct rejection region for a two - tailed t - test (since the alternative hypothesis is \(\mu_1 eq\mu_2\)) is \(t < - t_0\) or \(t>t_0\), so the an…
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an engineer wants to know if producing metal bars using a new experimen…
D. \(t < - t_{0},t>t_{0}\)
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a middle school with z students ran a survey to determine the students …
- Dance: $\boldsymbol{\frac{1}{9}z + 20}$ - Drama: $\boldsymbol{\frac{4}{9}z-32}$ - Baseball: $\boldsymbol{\frac{1}{9}z + 30}$
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according the the chart below, what percentage of the simpsons annual e…
d. 34%
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what is the equation of the trend line in the scatter plot? use the two…
\(y = -\frac{2}{3}x + 70\)
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the movement of the progress bar may be uneven because questions can be…
35
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6 from an earlier course a. find 10% of 85. b. find 1% of 85. c. find 3…
s: a. \( 8.5 \) b. \( 0.85 \) c. \( 26.35 \)
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from unit 4, lesson 1 select all ratios that are equivalent to 4 : 5. a…
A. \(2:2.5\), C. \(3:3.75\), E. \(8:10\)
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observation with smallest residual = observation with largest residual =
Observation with smallest residual = The point at \( x = 6 \) (on the regression line) Observation with largest residual = The top - most blue dot (farthest from the regression li…
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observation with smallest residual = observation with largest residual =
Observation with smallest residual = The point around (12, 7) (or the middle - left point near the line) Observation with largest residual = The top - most point at (25, 28) (Note…
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ice cream sales (hundreds) observation with smallest residual = observa…
The point closest to the line has the smallest residual. The point farthest from the line has the largest residual.
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find the interquartile range of the data set represented on the box plo…
25
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find the interquartile range of the data set represented on the box plo…
280
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find the interquartile range of the data set represented on the box plo…
180
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find the median of the data set below. 8, 6, 3, 12, 12, 12
The median of the data set is \(10\).
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coach lula recorded how many practices each of his players attended thi…
8
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maureen examined the ages of her cousins. name age (years) iain 4 hudso…
7
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the stem and leaf plot below represents the amount of practice problems…
11
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the stem and leaf plot below represents the number of boxes of cookies …
12
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the stem and leaf plot below represents the amount of practice problems…
9
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the stem and leaf plot below represents the amount of croissants sold e…
5
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5 from unit 4, lesson 1 mancala (mahn-kah-lah) is a board game from eas…
For part a, if right store has 3 pieces, then (3/48)*100 = 6.25%. But wait, maybe I miscounted. Wait, maybe the right store has 3 pieces. So the answer is 6.25%? Wait, no, maybe t…
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9. fill in the blank: in data analytics, qualitative data ______. selec…
- is subjective - measures qualities and characteristics
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the manager of a cafeteria kept track of the number of each type of lun…
The second graph (the one with "Number Sold" y - axis, lunch types Deli Sandwich, Hamburger, Pasta Plate, Pizza, Soup Combo and correct bar lengths)
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1) todd is going to order custom shirts for his math team. he will pay …
The design fee is \$40.
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1) david runs the music - streaming service absolute audio. since upgra…
David gained 100 subscribers every 3 months.
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derek is renting a van from abby’s autos. he will be charged an initial…
The initial fee is $50
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justine just ran her first race. her distance from the finish line decr…
When Justine started the race, she was 10 kilometers from the finish line.
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brandon buys an english ivy plant to decorate the shelf in his bedroom.…
The ivy grows 9 inches every 2 months.
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sandra is making popcorn balls for movie night with her friends. the am…
Sandra needs 2 tablespoons of sugar for every 3 cups of popcorn.
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evaluate. write your answer as a decimal or whole number. (0.44)² = sub…
\( 0.1936 \)
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an architect decides to create a playhouse model that is a smaller vers…
13
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last summer, 32 students enrolled in mr. cross arts and crafts camp. th…
8
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jesus christ was killed by ______, a roman means of execution crucifixi…
Crucifixion (the option with "Crucifixion" text, corresponding to the first checkbox option)
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question 7 of 10 rick wants to buy a pound of almonds. if a 1-pound bag…
B. $1.25
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a survey asked about the number of people who eat breakfast almost ever…
\(\frac{53}{64}\) (Option: \(\frac{53}{64}\))
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nico owns 11 instructional piano books. two are beginner books, six are…
\(\frac{6}{121}\) (corresponding to the option with this value)
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carls monthly take - home pay is $2000, and his monthly rent is $500. i…
A. 28.6%
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juanita has a storage closet at her shop with extra bottles of lotion a…
C. \( P(\text{shower gel} | \text{scented}) = 42\% \)
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question 8 of 10 what is the median of the following string of values? …
A. 52
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a survey finds that 48% of people identify themselves as fans of profes…
- \( P(F|C) = 0.75 \) - \( P(C \cap F) = 0.09 \) - \( P(C \cap F) = P(F \cap C) \)
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the weather report states that the probability it will rain on wednesda…
18 percent
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question 10 of 10 38% of a companys employees prefer coffee to tea. if …
C. 2660
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question 10 of 10 which graph is used to model piece rate pay? a. piece…
A. Piecewise
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6. paint coverage for one coat of paint is typically 10.7 m²/l. how muc…
\(\boxed{5.06}\) (or if we consider more precise calculation, maybe \(5.06\) with 3 significant figures)
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question 5 of 10 which function is used to model overtime pay? a. piece…
D. Piecewise
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elenas pay (graph with x-axis from 0 to 4, y-axis from 0 to 40, line st…
A. $25
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question 9 of 10 a caricature artist works 5 days a week, draws 18 port…
B. 6
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question 6 of 10 worker a earns $8.10 per widget produced, produces 10 …
C. Worker A earns more per day than worker B but less per hour than worker B.
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question 5 of 10 a street promotion worker gets paid $0.10 for each fly…
C. 200
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question 4 of 10 a street promotion worker gets paid $0.10 for each fly…
B. 160
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question 3 of 10 what type of graph is useful when depicting piece rate…
A. Linear graph
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question 2 of 10 a delivery driver earns a fixed amount for each delive…
B. $9.00
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question 7 of 10 after finishing his shift, a security guard wrote 6.75…
C. 6 hours and 45 minutes