Statistiques
Analyse de données, distributions de probabilités et tests d'hypothèses.
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8. how many ways are there of getting from a to c in each diagram, pass…
15 ### Diagram 2
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2.) ____ +1.3 = 4.5
\( 3.2 \)
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21. at a homecoming game, there are 630 students and 1080 alumni in att…
$\frac{7}{12}$ (This fraction means that for every 7 students, there are 12 alumni, or the number of students is $\frac{7}{12}$ of the number of alumni.)
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pre-algebra assignment use simple interest to find the ending balance. …
The ending balance for problem 1) is $\$7,056$. If you want solutions for other problems, you can follow the same steps: identify $P$, $r$ (convert percentage to decimal), $t$, th…
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jay has 66 total flowers. of these, 14 are yellow and the rest are red.…
52
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quinn has 41 apples. jack gives her 9 more apples. then, she gives away…
43
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10. 36 balls to 81 players
The ratio of 36 balls to 81 players is \(4:9\) (or \(\frac{4}{9}\)).
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a jar has 31 jellybeans. liam puts 52 more jellybeans in the jar. he gi…
36
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emily has 17 markers. silas gives her 24 markers. kai gives her 9 more …
50
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a clown made purple and green balloon animals at a party. he kept track…
\(\frac{3}{13}\)
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yumi has a pet hedgehog named spike. every day, spike eats a serving of…
$3 \div 0.01$
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2. the graph illustrates the cost for a graphic designer to design a lo…
a) The fixed cost is $\$80$. This is the cost when 0 hours are spent (the y-intercept of the graph, at $t=0$). b) The cost starts at a fixed amount of $\$80$, and increases by a c…
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jonah has 34 balloons. he then buys some more. he gives away 11 balloon…
17
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8. 60 forks to 144 spoons
The simplified ratio of 60 forks to 144 spoons is $5:12$.
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7. 45 out of 75 days
Assuming the problem is to find the fraction, decimal, or percentage of 45 out of 75 days. Let's solve for the fraction simplified, decimal, and percentage. ### Step 1: Simplify t…
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6. 49 apples out of 63 fruit
\(\frac{7}{9}\)
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assignment katherine period 2 homework > use a separate piece of paper …
## Journal Answer: A sequence is a function because its domain is the set of natural numbers, and each term number (input) corresponds to exactly one term value (output), satisfyi…
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yumi has a pet hedgehog named spike. every day, spike eats a serving of…
$2 \div 0.01$
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marleny is creating a game of chance for her family. she has 5 differen…
8
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of the population with the mean of the sample. population data 0 3 3 1 …
0.55
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the sizes of cans on a shelf are listed below. 18 oz, 8 oz, 16 oz, 20 o…
9
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5 the graph shows the number of books that four students read during a …
Colby ### Part B:
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yumi has a pet hedgehog named spike. every day, spike eats a serving of…
$2 \div 0.01$
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the box plots show the distributions of weights of cucumbers and zucchi…
The standard deviation is the best measure because both data distributions are symmetric.
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which table shows no correlation? option 1: | x | 3 | 5 | 6 | 8 | 10 | …
The table with $x$ values 3, 5, 6, 8, 10, 14, 15 and $y$ values -2, -4, 6, 8, 12, 10, -16 (the third option) shows no correlation.
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0 1 2 3 4 5 x 2 1 0 negative correlation positive correlation strong as…
negative correlation, weak association, linear
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going to the pharmacy in this lesson, you will learn useful vocabulary …
1. k 2. a 3. g 4. j 5. i 6. d 7. c 8. e 9. h 10. b 11. f
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finish by graphing the solution to the inequality. -5n≥40 n≤-8 (number …
# Explanation: ## Step1: Analyze the inequality solution The solution to the inequality \(-5n \geq 40\) is \(n \leq -8\). This means we need to represent all real numbers less tha…
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01 select the best revision for the paragraph to enhance cohesion and f…
During the powerful storm, the rain fell, thunder rumbled, and lightning flashed across the sky. Meanwhile, the birds sought shelter as the trees swayed in the wind. --- ### For Q…
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the means and mean absolute deviations of monthly snowfall during the w…
The difference between the means is about 5 times the mean absolute deviation of the data sets.
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latesha and bernard are playing a game. their scores for five games are…
The means differ by 1, but the ranges differ by 40.
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3. 36 cassettes to 60 cds
The simplified ratio is $\frac{3}{5}$ (or 3:5).
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yumi has a pet hedgehog named spike. every day, spike eats a serving of…
$1 \div 0.01$
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which sample fairly represents the population? select two options. □ us…
D. sending a mandatory and confidential e-mail survey to every tenth employee of a company to determine overall job satisfaction E. taking a poll in the main hallway between class…
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national parks favorite park | number of students acadia | 19 carlsbad …
210 (Option: 210)
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plest form. 2. 25 calculators to 20 students
The ratio in simplest form is $\frac{5}{4}$ (or 5:4).
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fiona recorded the mean math exam grade for six random samples of stude…
The variation of Fiona's samples is too large.
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a persons hand span goes from the 1 inch mark to the 11 inch mark on th…
55 inches
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solving for the missing proportions version 1 1 $\frac{4}{10} = \frac{3…
1. $x=80$ 2. $k=27$ 3. $q=1$ 4. $y=12$ 5. $z=1$ 6. $b=3$ 7. $c=21$ 8. $w=24$ 9. $x=5$ 10. $d=21$
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deciding to ship a flawed product because doing so means your company w…
A. Consequentialism
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the box plots show the average gas mileage, in miles per gallon, of the…
The type of cars sold in June typically gets better gas mileage.
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maria gathered the data in the table. she finds the line of best fit to…
0.58 (Option C)
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credits needed to graduate the input, or dependent variable, is courses…
The output, or dependent variable, is credits needed to graduate.
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plans after high school | | college | not college | total | |----------…
82%
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express each ratio as a fraction in si 1. 56 pencils to 64 erasers
$\frac{7}{8}$
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a customer would like the company to build him a name plate that is 22 …
12
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mascot survey sample 1\t\tsample 2 ducks\t12\tducks\t8 grizzlies\t24\tg…
$\frac{42}{72} = \frac{x}{480}$
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length (in.) 14 12 10 8 6 4 2 y = 1.47x + 2.05 1 2 3 4 5 6 7 8 9 . x le…
3
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two students created a game of dice. they determined that each roll wou…
B. -0.5
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according to a survey, 15% of city workers take the bus to work. donate…
0.001
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kimora has a 4-kilogram bag of birdseed. she uses 0.1 kilogram each day…
40
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3) gabriel needs 4 cups of apples for 3 pies. how many cups of apples d…
1) 12 red marbles 2) 25 cats 3) 45 chocolate bars 4) 8 cups of flour 5) 36 apples 6) 375 students
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madigan converts the frequency table to a conditional relative frequenc…
0.20 (Option B)
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what does a residual value of 1.3 mean when referring to the line of be…
A. A data point is 1.3 units above the line of best fit.
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estimate the quoti 1. $817 \\div 4$
200
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the box plots below show the ages of college students in different math…
The mean and median age are more likely to be the same for the students in Math 1.
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estimate quotients estimate the quotient. tell what compatible numbers …
The estimated quotient of \( 803 \div 4 \) is 200 (using compatible number 800).
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the table below shows the average attendance of school events by the da…
250, 304, 422
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how many shoes do you own? number of students pairs of shoes owned opti…
19
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number of properties why might the graph be considered misleading? the …
The scale on the y-axis misrepresents the difference in the heights of the bars.
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the table below shows the participation in the town soccer league durin…
$y=6.75x+81.25$ (the third option)
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subjects taught english\tnot english\ttotal math\t34\t22\t56 not math\t…
21% (Option B. 21%)
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the data in the table represent the height of an object over time. heig…
quadratic, because the height increases and then decreases
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the histogram shows the duration, in minutes, of movies in theaters. du…
The median is less than the mean.
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the relative frequency table shows the results of a survey in which par…
0.88
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d, complete the tqe organizer below. you should have at least 4 bullets…
To complete the TQE organizer, we'll assume we're analyzing a literary work (since the questions relate to authorial choices, themes, etc.). Let's use a sample text context (e.g.,…
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number of beads 80 72 64 56 48 40 32 24 16 8 2 4 6 8 10 12 14 16 18 20 …
82 (Option C: 82)
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• a ratio relates two or more numbers with the same units. • in ratios,…
1) a) $\frac{5}{4}$, $5:4$, 5 to 4 b) $\frac{3}{5}$, $3:5$, 3 to 5 c) $\frac{1}{3}$, $1:3$, 1 to 3 (or $\frac{4}{12}$, $4:12$, 4 to 12) 2) a) $8:14$, $12:21$ (answers may vary) b)…
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which is most likely the correlation coefficient for the set of data sh…
-0.21
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a utility company hires pollsters to knock on random doors in different…
No, it is not biased. All residents of the town will have the opportunity to respond.
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population data 0 3 3 1 3 2 2 2 5 4 3 3 3 2 1 2 4 2 3 3 1 3 5 2 4 sampl…
0.24
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a towns athletic league contains 18 baseball teams. the board members o…
invalid because of biased sampling
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the graph has points (4, 35) and (16, 134). the options are: \\(\\frac{…
$\boldsymbol{\frac{134-35}{16-4}}$ (the first option)
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what are the domain and range of this relation? (-5, 7) (-3, -7) (-10, …
domain: $\{-10, -5, -3, 10\}$ range: $\{-7, 3, 7\}$
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cafeteria choices green vegetable | number of students peas | 34 green …
134 students
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a new car is purchased for 16400 dollars. the value of the car deprecia…
$5738.66$ dollars
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what is the range of this relation? image of a coordinate plane with po…
$\{-3, -2, -1, 0, 2\}$ (Option: $\{-3, -2, -1, 0, 2\}$)
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tyler has a pet pygmy goat named daisy. every day, daisy eats a serving…
$2 \div 0.1$
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calculator active. answer the questions pertaining to the given data. 4…
| \(x\) | \(2\) | \(4\) | \(5\) | \(8\) | \(9\) | |-------|-------|-------|-------|-------|-------| | \(y\) | \(7\) | \(15\) | \(23\) | \(77\) | \(115\) | | \(\log y\) | \(0.8451\…
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which describes a correct way to construct a scatterplot? when analyzin…
A. When analyzing the number of home runs that a baseball player hit over several seasons, the season is the independent variable.
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how can amani use the trend line to check the reasonableness of her ans…
A. She should expect the slope to be negative because the line tilts down moving from left to right on the graph.
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brooke painted a picture of the pond near her house. first, she mixed \…
$\frac{3}{10}$
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jayce volunteers for the local library. the librarian wants to find out…
Jayce should not use either option. Option 1 is likely to be biased so that paperbacks are overrepresented, while Option 2 is likely to be biased so that e-books are overrepresent…
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tyler has a pet pygmy goat named daisy. every day, daisy eats a serving…
$1 \div 0.1$
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megan spent the weekend hiking with friends. the group hiked for $2\\fr…
\(2\frac{5}{12}\)
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directions: ... read the learning targets. then, read this sentence fro…
I imagined other communities around Fiji, and likely the world, that could be transformed simply by having connection. On a more personal note, I saw an opportunity to use my skil…
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neils goal is to spend 5 hours reading his book this week. he already s…
2
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miguel cabrera has had 369 at bats, and he has 127 hits and 21 home run…
0.57
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find a quadratic equation that models the decline in physical recorded …
| x | Actual Revenue | Predicted Revenue | Difference between Actual and Predicted | |------|----------------|-------------------|-----------------------------------------| | 2008…
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miss gupta is planning a project for the art class that she teaches. in…
\(4\frac{3}{4}\) pounds
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a car travels 150 kilometers on the first day of a road trip. with each…
B. 913 kilometers
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this week, tessa biked $4\\frac{1}{2}$ miles on tuesday, $5\\frac{1}{2}…
\(16\frac{1}{2}\) (or \(\frac{33}{2}\))
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the conditional relative frequency table below was generated by column …
The value of B is not similar to the value of F.
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which measure of center is shown in a box plot? mean median mode range
median
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17. thomas makes 5 sandwiches that he cuts into thirds. how many \\(\\f…
D. 15
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proma made the two - way table below showing her friends favorite fruit…
girls: 9; boys: 11
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laila guesses on all 20 questions of a multiple-choice test. each quest…
$P(\text{success})=\frac{1}{4}; P(\text{failure})=\frac{3}{4}$
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jayden, spencer, and miguel made paper airplanes and had a contest to s…
56 feet
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x | y 1.6 | 39 1.9 | 38 2.3 | 42 3.4 | 40 3.8 | 41 4.2 | 44 4.3 | 42 4.…
There is a cluster, and as x increases, y increases.
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15. holly had 30 pencils. she gave 6 pencils to her friends. three - ei…
B. 9