Statistiques
Analyse de données, distributions de probabilités et tests d'hypothèses.
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statistical analysis the correlation coefficient is the statistical mea…
correlation coefficient
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understand z - scores the data value ( x ) exists in two data sets: a a…
It is less than $z_{x}$ for set B.
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the test scores of the students in four classes are summarized below. a…
C. Class C ### Part (b)
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a data set has the following characteristics: mean: 4.9 median: 6 mode:…
\( z_1=-1.95 \), \( z_{6.5}=0.8 \) (and \( z_5 = 0.05 \) as given)
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part 1: if 540 people preferred hamburgers, how many people preferred p…
B. 810
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the ages of the members of four teams are summarized below. answer the …
B. Team B ### Part (b)
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a data set has the following characteristics: mean: 4.9 median: 6 mode:…
\( z_1=-1.95 \), \( z_{6.5}=0.8 \) (and \( z_5 = 0.05 \) as given)
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a data set has the following characteristics: mean: 4.9 median: 6 mode:…
mean
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a data set has the following characteristics. mean: 4.9 median: 6 mode:…
standard deviations
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find the equation of the exponential function represented by the table …
$y = 0.02(0.5)^x$
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6-60. figure 3 of a tile pattern has 11 tiles, while figure 4 has 13 ti…
a. $t=2n+5$ where $t$ is the number of tiles and $n$ is the figure number b. Figure 505
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a contractor records the areas, in square feet, of a small sample of ho…
Variance: \(\boldsymbol{84000}\) Standard Deviation: \(\boldsymbol{290}\)
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a bag contains 18 red marbles, 6 white marbles, and 3 gray marbles. you…
27
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milan wants to find the average time it takes lincoln high school stude…
- hours - seconds - minutes ### Part (b)
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calculate standard deviation this is a multi - part item. a contractor …
The first option \((250)^2 + (-400)^2 + (-250)^2 + (350)^2 + (100)^2 + (-50)^2 = 420000\) (or as presented in the option with the corrected sum) represents the numerator (sum of s…
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find the equation of the exponential function represented by the table …
$y = 0.02(0.5)^x$
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fill in the missing numbers to complete the pattern; 5.66, , 5.86, 5.96…
The missing numbers are \(5.76\) and \(6.06\). So the sequence is \(5.66, \boldsymbol{5.76}, 5.86, 5.96, \boldsymbol{6.06}, 6.16\).
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cphs : advanced (270831030) standard deviation $\\sigma^2 = \\frac{(x_1…
The data is a sample and is expected to be less dispersed from the mean.
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6-59. lashayia is famous for her delicious brownies, which she sells at…
a. $\$18.00$ b. 19 brownies
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a car rental company sells accident insurance to 28% of its customers. …
188
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this is a multi - part item. a contractor records the areas, in square …
\( s = \sqrt{\frac{(x_1 - \bar{x})^2+(x_2 - \bar{x})^2+\dots+(x_n - \bar{x})^2}{n - 1}} \) (the fourth formula option)
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a toy machine has equal numbers of red, white, and blue rubber balls. r…
A. Let 1 and 2 represent red, let 3 and 4 represent white, and let 5 and 6 represent blue.
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looking at this graph, can you safely estimate how much coffee will be …
b) no
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calculate a contractor records all of the bedroom areas, in square feet…
29.4
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fill in the missing numbers to complete the pattern: □, 3.47, □, 3.57, …
The missing numbers are \(3.42\) and \(3.52\) (in order, the first blank is \(3.42\), the second blank is \(3.52\))
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a contractor records all of the bedroom areas, in square feet, of a fiv…
864
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a jar contains 8 marbles marked with the numbers 1 through 8. you pick …
$\frac{7}{8}$
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for breakfast, clarissa can choose from oatmeal, cereal, french toast, …
Clarissa is not correct; the event that she will have oatmeal for breakfast is unlikely to happen. Since there are 4 breakfast choices, the probability that she will choose oatmea…
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use the graph to help you complete these two sentences. the graph shows…
1. The graph shows that US petroleum (oil) consumption **increased** during Carter's presidency. 2. This means that Americans responded to Carter's energy policy by **increasing t…
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use the graph to help you complete these two sentences. the graph shows…
1. The graph shows that US petroleum (oil) consumption **increased** during Carter's presidency. 2. This means that Americans responded to Carter's energy policy by **increasing t…
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use the graph to help you complete these two sentences. the graph shows…
1. The graph shows that US petroleum (oil) consumption **increased** during Carter's presidency. 2. This means that Americans responded to Carter's energy policy by **increasing t…
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the numbers below are the ages of players on a soccer team. create a st…
| Stem | Leaf | |------|------| | 1 | 9 | | 2 | 0, 1, 3, 4, 6, 8, 9 | | 3 | 1, 4, 8, 8, 9, 9 | | 4 | 1, 2 | *Clave: $4|1 = 41$*
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fill in the missing numbers to complete the pattern: 6.90, , 7.30, 7.50…
The missing numbers are \(7.10\) and \(7.70\). So the sequence is \(6.90, 7.10, 7.30, 7.50, 7.70, 7.90\).
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a car traveled 240 miles in 3 hours. at this rate, how many miles will …
D. 40 mi
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create a stem and leaf plot from the numbers below using the given key.…
| Stem | Leaf | |------|------| | 0 | 9 | | 1 | 0, 4 | | 2 | 1, 7 | | 3 | 2, 4, 5, 9 | *Clave: $3|2 = 3.2$*
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create a stem and leaf plot from the numbers below using the given key.…
| Stem | Leaf | |------|------| | 0 | 9 | | 1 | 0, 4 | | 2 | 1, 7 | | 3 | 2, 4, 5, 9 | *Clave: $3|2 = 3.2$*
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the old man’s words stayed with her as she drove up into the mountains.…
C. Maggie left home because she was unhappy there
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which of the following are typically advantages of using cash? □ easy t…
- Keep spending within your means - Protect your identity - No transaction fees
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type the missing number in this sequence: 96, 97, , 99, 100
98
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brinlyn increased the amount of water she drank per day from 32 oz to 4…
C. 25%
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select the correct text in the passage which sentence best expresses th…
I suppose every one must have reflected how primeval and how poetical are the things that one carries in one's pocket; the pocket-knife, for instance, the type of all human tools,…
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use the graph to answer the following questions. julies savings account…
\( 100 \) dollars ### Part b: At what rate, in dollars per week, was Julie adding money to her savings account in the first four weeks?
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turn on the television any evening and you will most likely find a so -…
A. by comparing books with reality
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create a stem and leaf plot from the numbers below using the given key.…
| Stem | Leaf | |------|------| | 0 | 1, 4 | | 1 | 3, 7, 8 | | 2 | 9 | | 3 | 1, 2, 5, 7, 8 | *Clave: $3|1 = 31$*
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drag each tile to the correct box. match the claim about each place to …
A claim that a place has some of the best restaurants. → examples of restaurants located there A claim that a place is one of the safest places to visit. → statistics showing very…
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which of the following are typically disadvantages of using a credit ca…
Easy to overspend your means (the checkbox next to "Easy to overspend your means" should be selected)
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type the missing numbers in this sequence: 2, 8, 14, \boxed{}, 26, \box…
The missing numbers are 20 and 32. So the sequence is 2, 8, 14, 20, 26, 32.
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create a stem and leaf plot from the numbers below using the given key.…
| Stem | Leaf | |------|------| | 0 | 1, 5, 9 | | 1 | 1 | | 2 | 1, 2, 5, 5 | | 3 | 2, 6 | *Key: $3|2 = 32$*
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the graph shows the cost for each video game rental. what does the rate…
the cost for every 1 video game rented
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the graph shows the cost for each video game rental. what does the rate…
the cost for every 1 video game rented
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sentences flow easily when all the actions in a list have the same endi…
The doctor attended to the patients, walked around the hospital, and spoke with the nurses.
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julie opened a bank account to manage the money she earns while she is …
For \( x = 0 \), \( y = 60 \); for \( x = 4 \), we need to read the graph. Assuming the graph's value at \( x = 4 \) is \( \boldsymbol{400} \) (this is based on the table's pre - …
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10 select the correct answer. read the sentence from the passage. reali…
A. by arguing that network's sole interest is monetary
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sentences flow easily when all the actions in a list have the same endi…
The doctor attended to the patients, walked around the hospital, and spoke with the nurses.
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julie opened a bank account to manage the money she earns while she is …
For \( x = 0 \), \( y = 60 \); for \( x = 4 \), we need to read the graph. Assuming the graph's value at \( x = 4 \) is \( \boldsymbol{400} \) (this is based on the table's pre - …
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match the graph to the situation. graph g graph h graph i distance from…
To solve this, we analyze each situation and match it to the graph by interpreting the distance - time relationship: ### 1. Analyze Larry's situation: Larry walks to school (dista…
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match the graph to the situation. graph g graph h graph i distance from…
To solve this, we analyze each situation and match it to the graph by interpreting the distance - time relationship: ### 1. Analyze Larry's situation: Larry walks to school (dista…
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12 the height of all 22 students in mrs. dani’s preschool class are sho…
a. La distribución es simétrica (simétrica alrededor del valor central 36 pulgadas). b. 36 pulgadas c. 36 pulgadas d. 8 pulgadas
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directions: type the correct answer in each box. spell all words correc…
1. True 2. False 3. True 4. False
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x 0 1 2 3 4 y 5 3 1 -1 -3 write the equation that created this table. y…
y = -2x + 5
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x | y 0 | 3 2 | 11 4 | 19 6 | 27 8 | 35 what is the y-intercept of this…
D. 3
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x -8 -6 -4 -2 0 y 12 6 0 -6 -12 what is the y-intercept of this table? …
-12
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sat scores are designed so that they are normally distributed as shown …
D. 100%
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lee has 3 packs of paintbrushes. after nancy gives him 8 more paintbrus…
The number of paintbrushes in each pack
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6 from unit 2, lesson 17 elena writes the equation $6x + 2y = 12$. writ…
\(x - y=-1\) (or any linear equation with a different slope from \(y=-3x + 6\)) #### Part b
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for a certain dog breed, the number of puppies in a litter typically va…
1.25
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lee has 3 packs of paintbrushes. after nancy gives him 8 more paintbrus…
The bottom tape diagram (with three $x$ sections and one 8 section, totaling 26) best represents the situation.
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olivia is cutting a 33-foot piece of wood for a project. she cuts off 6…
The remaining pieces are each 9 feet long.
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deviation? a on average, the number of students going to an office hour…
A. On average, the number of students going to an office hour varies from the mean by about 2.2 students.
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olivia is cutting a 33-foot piece of wood for a project. she cuts off 6…
The remaining pieces are each 9 feet long.
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1 the use of exaggeration to emphasize a point 3 a comparison between t…
This appears to be a crossword puzzle about literary devices. Let's identify each clue with the corresponding literary device: ### Across: 1. **Hyperbole**: The use of exaggeratio…
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6 from unit 2, lesson 17 elena writes the equation 6x + 2y = 12. write …
\(x + y = 1\) (any equation with \(\frac{6}{a_2} eq\frac{2}{b_2}\) works) #### Part b
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3 | time (minutes) | 15 | 30 | 45 | 60 | | --- | --- | --- | --- | --- …
128 ### Part 3 (b)
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lesson 6: even more graphs of functions cool down: walking home from sc…
s: - **Graph fitting the story**: The first graph (with decreasing, increasing, decreasing, constant, and decreasing segments ending at 0). - **Two quantities**: Time (elapsed) an…
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the quality control manager at a factory records the number of equipmen…
D. On average, the number of breakdowns per day varies from the mean by about 0.28.
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the following table shows the probability distribution for the number o…
$1.79$
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years passed by. every spring when the roses began to bloom seven youth…
- to emphasize how terrible the situation is - to make readers curious about Theseus's role in the plot - to allow Theseus to grow and mature
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in the meanwhile the little child at troezen on the other side of the s…
the arrival of the Cretan soldiers
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16. a painter mixes \\(\\frac{1}{4}\\) gallon of red paint, 3 quarts of…
6
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the dollar value ( v(t) ) of a certain car model that is ( t ) years ol…
Initial value: $\$25900$ Value after 11 years: $\$1450$
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journal compare the graph of a ratio relationship with the graph of a r…
The cost for a weight of 3 pounds is 9 dollars. #### Part (b)
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assignment #7 - study guide 12. of the two hundred works of art at a la…
a. $P(A) = 0.59$, $P(B) = 0.83$ b. $P(A \cup B) = 0.91$; this is the probability a randomly selected work is a painting, for sale, or both. c. $P(A \text{ or } B) = 0.9303$ d. $P(…
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2 the numbers listed below represent the ages of people standing in lin…
A. (El dot plot que representa correctamente las edades con las frecuencias contadas)
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reporting category 4 data analysis and personal financial literacy 3.8(…
D. \$8
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10 jackson, olivia, and manny are playing a math game. jackson answers …
C. Jackson 12, Olivia 16, Manny 8
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10 cm = ____ mm （options: 1, 10, 100, 1000）
100
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favorite ice cream flavor chocolate\tstrawberry\tvanilla\ttotal gender\…
You should pick the female group. The probability that a female student prefers chocolate is $\frac{15}{35} \approx 0.429$, while the probability that a male student prefers choco…
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president nixons action to end the gold standard created a budget defic…
meant the value of the dollar changed.
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0.5 pts piaget proposed that new ways of thinking are formed during eac…
1. is incorporated into an existing way of thinking. 2. confirmation bias.
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mr. cain made 252 cookies for the annual fifth grade cake bake sale. th…
Each student will get 21 cookies.
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which statement would a judicial activist most likely make? - \interpre…
A. "Interpretations of the Constitution must change because its authors could not foresee modern life."
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4 use the information you have so far to sketch a graph of the function…
The equation \( P(t) = 1000 \) has exactly one solution for \( t \) (assuming \( P(t) \) is a monotonic (e.g., increasing) population function, which is typical for population mod…
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helena needs 3.5 cups of flour per loaf of bread and 2.5 cups of flour …
A. 2 loaves of bread and 4 batches of muffins
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miguel picks a total of 25 tomatoes and cucumbers at the community gard…
| Miguel's Vegetables | | |----------------------|-------| | Tomatoes | 20 | | Cucumbers | 5 | | Total | 25 |
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find the equation of the exponential function represented by the table …
$y=2(4)^x$
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question which of the contexts below represents exponential growth? ans…
A town's population grows at a rate of 7.2% every year.
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kamilah picks a total of 16 radishes and carrots in the community garde…
### Completed Diagram (Kamilah's Vegetables): | | Box 1 | Box 2 | Box 3 | Box 4 | Box 5 | Box 6 | Box 7 | Box 8 | Box 9 | Box 10 | Box 11 | Box 12 | Box 13 | Box 14 | Box 15 | Box…
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which of the contexts below could not be modeled by a linear function? …
A. A car depreciates at a rate of 3.4% per year.
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kai picks a total of 9 green peppers and tomatoes in the community gard…
The corrected diagram will have 6 green pepper icons in the "Green Peppers" row and 3 tomato icons in the "Tomatoes" row, with the total row remaining 9 for green peppers (correct…
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perform the mathematical operation and round the answer to two signific…
0.24