Estadística
Análisis de datos, distribuciones de probabilidad y pruebas de hipótesis.
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based on the scatter plot below, which is a better prediction for y whe…
56
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which of the following elements in the artwork below indicate the lack …
The dominant red color filling the interior space, repeated decorative patterns (blue motifs), and balanced distribution of visual elements (e.g., similar - shaped objects like ca…
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a bag contains 10 red marbles, 9 white marbles, and 10 blue marbles. yo…
- Probability all marbles are red: \( \boldsymbol{\frac{20}{609}\approx0.0328} \) - Probability exactly two marbles are red: \( \boldsymbol{\frac{95}{406}\approx0.234} \) - Probab…
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a high school baseball player has a 0.202 batting average. in one game,…
\(\approx0.216\) (or more precise value depending on calculator precision, e.g., using more accurate \( (0.798)^{k} \) values: \( (0.798)^8\approx0.1627 \), \( (0.798)^7\approx0.2…
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a person going to a party was asked to bring 4 different bags of chips.…
2380
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question 22 suppose a designer has a palette of 8 colors to work with, …
56
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alexis buys a bag of cookies that contains 8 chocolate chip cookies, 9 …
$\frac{12}{187}$
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saada buys a bag of cookies that contains 4 chocolate chip cookies, 7 p…
\(\frac{27}{325}\)
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use the spinner below. what is the probability of the spinner landing o…
$\frac{1}{2}$
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a baseball player has a batting average of 0.155. what is the probabili…
The probability is approximately $0.0013$ (or more precisely, after more accurate calculation: First, $(0.155)^5 = 0.155^5 \approx 0.00008944$. $(0.845)^2 = 0.714025$. $\binom{7}{…
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43. what is the central theme conveyed through mr. thompsons explanatio…
b. The meaningful connections ### Question 44
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sara poured \\(\\frac{3}{4}\\) of the juice from a 2-liter bottle while…
$\frac{1}{2}$ liters
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which number - line model represents the sum of 1.25 + (-0.75)? a. b. c…
D
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question nasim is trying to solve a math problem with a ratio table. se…
189
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#2-7238 michelle bought five packs of crayons for $13.75. what is the c…
The cost of a pack of crayons is $2.75.
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a piece of machinery depreciates $6000 the first year, $5700 the second…
B. $4500
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moore’s law states that processor speeds, or overall processing power f…
(for Example 1): The approximate transistor count in 1998 (using 2 - year doubling) is \(\boldsymbol{8800000}\) (actual is 7,500,000).
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3. a survey was taken of 100 families with one child and 86 families wi…
### Two - Way Table: | | Saving for College | Not Saving for College | Total | |----------------|--------------------|------------------------|-------| | One Child | 94 | 6 | 100 …
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68. entrepreneurs must manage risk because: a) it can never be predicte…
B. It impacts business survival ### Question 69
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1. method\\walk\\city bus\\total\\arrival\\tardy (22)\\on time\\total\\…
s: ### Problem 1 Table: | Method \ Arrival | Tardy | On Time | Total | | ---- | ---- | ---- | ---- | | Walk | 22 | 48 | 70 | | City Bus | 50 | 10 | 60 | | Total | 72 | 58 | 130 | …
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the local football team selects three captains to represent its team du…
B. 162
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multiple choice listen imagine a restaurant that allows you to design y…
B. 60
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use the table to answer the question. data values for two options to ca…
1.9
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imagine you have a drawer with 5 different pairs of socks: - 1 pair of …
1. Your outfit contains only items with red 2. All items in your outfit are partly black 3. Your outfit contains no black items 4. Your outfit contains no red items
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which problem could be solved with the expression (6 + 4) × 3? choose 1…
C. Danielle had 6 dolls. She bought 4 additional dolls. She then went to the thrift store and tripled her collection. How many dolls does she have now?
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ruling out chance quick check which statement best describes the random…
The distribution will center on zero (0) with possible values between - 0.4 and + 0.4 (the first option, assuming the first option is worded as such based on the description).
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the nine points shown below represent celsius temperatures and their eq…
The slope is \(\frac{9}{5}\). This means that for every \(1^\circ\) that Celsius changes, Fahrenheit changes \(\frac{9}{5}\)°.
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the graph shows the relationship between the number of cars on a certai…
For the decrease: \boxed{600} For part (e), the correct option is B. Segments are used because the data for the times at which the numbers of cars were recorded are continuous rat…
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read the following sentence: i was late because of the fact that i coul…
B. I was late because my mother was not ready to go. (Wait, in the options, the second option is "I was late because my mother was not ready to go." So that's the correct one as i…
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the graph shows the relationship between the number of cars on a certai…
(for part c): 100 (assuming the graph values are as above) ### Part d:
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use the given equivalents, along with dimensional analysis, to convert …
\( 35\ \text{lb} = \boxed{15680}\ \text{g} \)
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use the given equivalents, along with dimensional analysis, to convert …
\(162.00\)
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use the given equivalents, along with dimensional analysis, to convert …
644
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the graph shows the relationship between the number of cars on a certai…
(part a): 100 ### Part (b)
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for parts (a) and (b) below, guess what might be latifah’s rule for the…
a. \(L(n)=3n - 4\) b. \(L(n)=n^{2}+5\)
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contesta con palabras. son las ______ menos ______ .
First blank: ocho Second blank: quince
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question 18 a recent publication claims that the average person spends …
a. t - score \(\approx - 3.0020\) b. p - value \(\approx0.0043\)
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example: identify the independent and dependent variables peter coaches…
\(I\) - How much money they raise depends on \(C\) - How many cars are washed Dependent Variable: \(I\) - How much money they raise Independent Variable: \(C\) - How many cars are…
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a ball is dropped from a height of 14 ft and bounces 80% of its previou…
\( 4.6 \)
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question 2 instructions read the question carefully and select the best…
A. To a potentially disastrous degree
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essential question how can you recognize when two quantities vary direc…
As the weight \( x \) increases, the distance \( d \) the spring stretches also increases. The distance varies directly with the weight because the ratio \( \frac{d}{x} \) is cons…
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1. a construction company is moving cinder blocks. the table shows the …
\( W = 40n \) ### Problem 2
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read the article and answer the following questions 1. what is the best…
b. Lower expectations
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a gym offers after - school activities at different prices. students ar…
1. The gymnastics class has an initial value of $50: True 2. The dance class has an initial value of $18: False 3. Each session of gymnastics costs $52: False
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2 exploration: recognizing inverse variation go to bigideasmath.com for…
| \( x \) | \( y \) | |--------|--------| | 1 | 64 | | 2 | 32 | | 4 | 16 | | 8 | 8 | | 16 | 4 | | 32 | 2 | | 64 | 1 | ### Part (b)
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rounding b to three decimal places, and using the form $p_n = p_0(b)^n$…
\( P_{20} \approx \boxed{1473} \) (or if decimal is allowed, 1473.21)
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a gym offers after - school activities at different prices. the gymnast…
True (The statement "The gymnastics class has an initial value of $50" is True because when the number of sessions (\(x\)) is 0 (no sessions, only registration fee), the total cos…
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the national assessment of educational progress (naep) includes a mathe…
a. This 90% confidence interval would have a smaller margin of error than the 95% confidence interval
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the student center also offers a photography class. the graph shows the…
1 session, 2 sessions
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the equation below shows that the value of a $4,800 certificate of depo…
A. 1.4 years
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random digit dialing of residential numbers was done using a database o…
b. \( \hat{p} eq0.13 \) and \( P = 0.0000 \) There is significant evidence that the sample does not represent the population of Greenville in terms of age.
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carmen uses the function $f(t) = \\sqrt{t + 100}$ to model the number o…
B. 125 days
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roger purchases a valuable item. the equation below models the value of…
The item depreciates at an annual rate of 1%
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pottery class: y = 10x + 15 sessions | 0 | 1 | 2 | 3 | 4 cost ($) | 15 …
15
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joanne purchases a valuable item. the equation below models the value o…
The item depreciates at an annual rate of 7%
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a farm produced 9,000 watermelons - the watermelons have a mean weight …
C. 115
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what is true of the data in the dot plot? check all that apply. number …
The center is 13, The peak is at 14, It has two clusters (assuming the options are checkboxes, so the correct ones are: "The center is 13", "The peak is at 14", "It has two cluste…
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pottery class: ( y = 10x + 15 ) | sessions | 0 | 1 | 2 | 3 | 4 | | cost…
\(0\)
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the exponential model below represents the population of a animal x yea…
Every year, the animal decreases in population by 6% (the last option: "Every year, the animal decreases in population by 6%")
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18. the time t (in days) that it takes to harvest a field varies invers…
14 days
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as a function of the number of sessions attended architecture class: $5…
2 sessions, 3 sessions, 4 sessions (i.e., the options: 2 sessions, 3 sessions, 4 sessions)
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when do you use the 1 sample t - test? choose all that apply (for this …
c. When population standard deviation is not given
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23) jared wants to have his birthday party at the movies. the special e…
s: a) \(\boldsymbol{12n}\) (or \(8n + 4n\)) b) \(\boldsymbol{50 + 5n}\) c) \(\boldsymbol{17n+50}\) d) \(\boldsymbol{\$152}\)
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the student center also offers an architecture class. the description s…
For the architecture class table: - Number of Sessions = 2: Total Cost = 31 - Number of Sessions = 3: Total Cost = 44 - Number of Sessions = 4: Total Cost = 57 So the completed ta…
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architecture class: $5 initial fee $13 per session initial value for ar…
The completed table for architecture class (Number of Sessions: 0,1,2,3,4; Total Cost: 5, 18, 31, 44, 57). So the values for sessions 1 - 4 are 18, 31, 44, 57 respectively.
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6) order the following fractions and decimals from least to greatest. s…
a) \(0.15, 0.21, \frac{1}{3}, \frac{2}{5}, 0.4\) (or \(0.15, 0.21, \frac{1}{3}, 0.4, \frac{2}{5}\) since \(\frac{2}{5}=0.4\)) b) \(1.011, 1\frac{1}{10}, 1.110, 1.111, \frac{10}{9}…
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the student center also offers an architecture class. the description s…
The drawing class costs less for 0 sessions. The architecture class costs less per session.
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the graduate management admission test (gmat) is taken by individuals i…
The p - value is approximately 0.0057.
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architecture class: $5 initial fee $13 per session find the initial val…
13
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the dot plot shows the number of cupcakes bought by each person who cam…
None of the first three options are true. (But since the user's question may have a fourth option, please check the full question. If we assume that there was a mistake and the in…
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of the 120 apartments in a building, 75 have been scheduled to receive …
B. 37.5%
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from the diary of morris breitbart day 6 sunday october 10, 1943. \the …
The repeated rhetorical questions emphasize the author's anguish over Jewish persecution, highlight injustice/suffering, provoke reflection on moral failings, and convey despair a…
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martin kept track of the number of times he had to flip a coin before i…
Six times it took 4 flips of the coin to land tails up.
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there are 48 students who want to join grc football team. out of 48, on…
0.79
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and table show the total cost of the number of sessions attended, x. po…
3, 4 (the options with "3" and "4" as the number of sessions)
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5) order the following decimals in descending order: a)0.3, 0.\\overlin…
a) \(0.777, 0.\overline{73}, 0.7, 0.657, 0.655, 0.3\) b) \(3.998, 3.63, 3.56, 3.444, 3.322\)
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of each class y, as a function of the number of sessions attended, x. -…
16
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a student center offers summer classes at different prices. the equatio…
10
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pottery class: $y = 10x + 15$ what is the initial fee for each class? f…
The initial value for the pottery class is 15. The initial value for the drawing class is 0.
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4) write a fraction that is between the following decimal pairs: a)0.4 …
s: a) \(\boldsymbol{\frac{1}{2}}\) (or \(\frac{5}{10}\), \(\frac{50}{100}\)) b) \(\boldsymbol{\frac{311}{400}}\) (or \(\frac{7775}{10000}\)) c) \(\boldsymbol{1\frac{7}{20}}\) (or …
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firework shell diameter vs. height at burst what is the rate of change?…
25
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3) write a decimal that is between the following fraction pairs: a) \\(…
s: a) $\boldsymbol{0.45}$ (or any decimal between 0.4 and 0.5) b) $\boldsymbol{1.4}$ (or any decimal between approximately 1.333 and 1.444) c) $\boldsymbol{0.36}$ (or any decimal …
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khloe reaches the end of a hiking trail and hikes back to her car at a …
The first "?" should be 8 and the second "?" should be 1, so \( 8 = -3(1) + b \)
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khloe reaches the end of a hiking trail and hikes back to her car at a …
-3
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khloe reaches the end of a hiking trail and hikes back to her car at a …
The numerator's blank is \(8\), the denominator's first blank is \(3\), and the second blank is \(1\) (so the expression is \(\frac{2 - 8}{3 - 1}\))
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khloe reaches the end of a hiking trail and hikes back to her car at a …
\((1, 8)\) and \((3, 2)\)
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question find \\(\\frac{f(-1)}{g(8)}\\). graph of g(x) and f(x) on a co…
\( -\frac{3}{5} \)
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jenna created a scatter plot and drew a line of best fit, as shown. wha…
D. \( y = -\frac{3}{4}x + 19 \)
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a bike rental costs $2.50 per hour plus a fee for renting a helmet. the…
\( \$2.50 \) per hour (or \( 2.50 \) if just the numerical value with unit context)
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a bike rental costs $2.50 per hour plus a fee for renting a helmet. the…
A. A bike rental costs $2.50 per hour.
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when a cricket chirps 40 times in one minute, the temperature is about …
40
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when a cricket chirps 40 times in one minute, the temperature is about …
\(0.25\) (or \(\frac{1}{4}\))
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when a cricket chirps 40 times in one minute, the temperature is about …
(40, 50) and (80, 60)
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a dance school offers classes in ballet folklórico. there is a one - ti…
12
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select the correct answer. maggie drew lines of best fit for two scatte…
C. Both line A and line B are well - placed lines of best fit.
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a bike travels 42 miles in 6 hours at a constant speed. the constant of…
7
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write the following number in standard notation. 3.136×10⁸ 3.136×10⁸ = …
313600000
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use the graph to answer questions 2–5. 2. which lines represent proport…
Lines A, C, D, and E represent proportional relationships because they are straight lines that pass through the origin \((0,0)\), which is a key characteristic of proportional rel…
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write the number in standard notation, without exponents. 9.6×10⁷ 9.6×1…
96000000
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a dance school offers classes in ballet folklórico. there is a one - ti…
\(68 = 8(7) + b\) (The first "?" is 68, the second "?" is 7)