統計と確率
データ分析、確率分布、仮説検定、統計手法。
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read the excerpt from \sinners in the hands of an angry god.\the devil …
A. devour
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the median of 5, 7, 2, 9, 8 is: 5 7 8 6
B. 7
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the median of 5, 7, 2, 9, 8 is: 5 7 8 6
B. 7
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the median of 5, 7, 2, 9, 8 is: 5 7 8 6
B. 7
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the median of 5, 7, 2, 9, 8 is: 5 7 8 6
B. 7
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the median of 5, 7, 2, 9, 8 is: 5 7 8 6
B. 7
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the median of 5, 7, 2, 9, 8 is: 5 7 8 6
B. 7
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17. a garden contains 135 flowers, each of which is either red or yello…
### Part A $3r + 90 = 135$ (or equivalent form $135 = 3r + 90$) ---
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the median of 5, 7, 2, 9, 8 is: 1 point 5 7 8 6 a bag has 3 red, 5 blue…
1. 7 2. $\frac{1}{5}$ (or 0.2)
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the median of 5, 7, 2, 9, 8 is: 1 point 5 7 8 6 a bag has 3 red, 5 blue…
1. B. 7 2. $\frac{1}{5}$ (or 0.2)
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determine the level of measurement: body temperatures of bears in the n…
Ratio
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question 5 2 pts determine the level of measurement: types of markers (…
Question 5: Nominal Question 6: Cannot be determined (incomplete question)
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determine the level of measurement: cars described as compact, midsize,…
1. Ordinal 2. Nominal
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6. maximum points: 7a student travels to school by train. over a period…
(a) 15 (b) Cumulative frequencies (top to bottom): 15, 55, 140, 175, 200 (c) (Sketch: Plot points (-1,0), (0,15), (1,55), (2,140), (3,175), (4,200) and draw a smooth curve connect…
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determine the level of measurement. (nominal, ordinal, interval, ratio)…
1. Ordinal 2. Nominal 3. Ratio 4. Nominal 5. Ratio 6. Ratio
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real numbers using distribution and combining like terms to simplify: u…
$6 - 2u$
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real numbers using distribution and combining like terms to simplify: u…
$-2v -1$
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why are popular people in media often portrayed as mean? is this true i…
1. Media portrays popular people as mean to create engaging, dramatic narratives with clear conflict and relatable underdog stories. 2. No, this is not true in real life. Populari…
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fraction word problems 1. (text is unclear and incomplete) answer $\fra…
$\frac{1}{5}$ ---
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fraction word problems 1. matthew has 8 pencils. three of them do not h…
3. $\frac{5}{8}$ 4. $\frac{1}{3}$
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1. matthew has 8 pencils. three of them do not have erasers on the end.…
$\frac{1}{3}$
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8. 45¢, 45¢, 50¢, 50¢, 75¢ the price of five different packs of crayons…
B. 50¢
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fraction word problems 1. matthew has 8 pencils. three of them do not h…
$\frac{3}{8}$
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7. 35, 30, 30, 40, 45 the number of minutes five people exercised on a …
B. 35
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a machine is filling a container with candy. the graph below shows the …
$c = 200t$
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6. in which data set or sets below does the median equal 100? a. 50, 10…
A. 50, 100, 100, 200
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5. in which data set below is the median 37? a. 30, 37, 50, 12, 8 b. 30…
C. 37, 35, 39, 37, 37, 39
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4. 405, 400, 425, 450, 540 determine the median of the set of data abov…
C. 425
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3. 21, 12, 17, 17, 8 the number of birds spotted by 5 people on a bird …
D. 17
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13. connect concepts a city dumps plastic shade balls into a reservoir …
The city can purchase no **more** than **12,500** shade balls.
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ential growth functions what is the rate of change of the function desc…
5
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the ordered pairs show amounts y (in inches) of rainfall equivalent to …
about 0.57 inches of rain Justification: A linear regression model \(y \approx 0.1058x - 0.0663\) was fitted to the given (snow, rain) data points. Substituting \(x=6\) (inches of…
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1. to find the median of a set of a data, you: a. add all the numbers i…
B. Put the numbers in order from smallest to largest and then find the number in the middle.
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12. a store sells $2\\frac{1}{4}$ pounds of mulch for every $1\\frac{1}…
108 pounds of mulch 72 pounds of gravel
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listen 11. connecting to real life you mix 0.25 cup of juice concentrat…
2 cups of juice concentrate 16 cups of water
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tea (cups) milk (cups) 3.75 1.5 a □ 1 b □ 3.5 c □ 2.5
$a = 2.5$, $b = 8.75$, $c = 6.25$
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14. use the information to answer part a and part b. farmer bill plante…
14. Part A: 31 more sweet corn plants Part B: 816 ears of corn 15. 9 kids 16. B. $2\frac{1}{4}$ 17. B. $\frac{8}{9}$
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at 11:59 am complete: 44% lation (scatter plot) t from data table best …
41 hot cocoas
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sample response: mr. rodriguez made a reasonable inference. his samplin…
- The ratio in the sample is 12/60, or 0.2. - The sample was random. - The sample was chosen without bias. - The sample size was large enough.
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10. add the following fractions. do not simplify the answer. select the…
10. A. $\frac{6}{5}$ 11. 25712 12. A. $\frac{1}{2} = \frac{2}{4}$, B. $\frac{3}{3} > \frac{5}{12}$, D. $\frac{3}{5} > \frac{1}{6}$
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apply. ☑ $1,203 - d = 758 ☐ $d - 1,203 = 758 ☐ $d - 758 = 1,203 ☐ $758 …
1. Valid equations: - $1,203 - d = 758$ - $1,203 - 758 = d$ 2. 2A: $s - 37.50 = 73.29$ (or $73.29 + 37.50 = s$) 3. 2B: $\$110.79$ 4. 3: 12 5. 4: $3\frac{4}{5}$ (or $\frac{19}{5}$)
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left on the card, y, as a function of the number of cups of coffee she …
### (i) The rate of change is $-3$. It represents a decrease of $\$3$ in the amount on the gift card for every cup Nevaeh purchases. ### (ii) The initial value is $\boldsymbol{25}…
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use the information to answer questions 3 and 4. two number cubes are r…
3. $0.15$ 4. $0.05$
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9. find the missing values in the ratio table. then write the equivalen…
Missing tea values (from left to right): $2.5$, $8.75$, $6.25$ Equivalent ratios: $3.75:1.5$, $2.5:1$, $8.75:3.5$, and $6.25:2.5$
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the total number of characters wesley knows, $y$, is a function of the …
1. Rate of change: 20, representing the number of characters Wesley learns each week. 2. Function: $y=20x+60$ 3. Initial value: 60, which is the number of characters Wesley knows …
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find the missing values in the ratio table. then write the equivalent r…
The missing tea values (in order) are 2.5, 8.75, 6.25. The equivalent ratios are $3.75:1.5$, $2.5:1$, $8.75:3.5$, and $6.25:2.5$.
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today 2. the spinner is spun 50 times. based on the results from the ta…
$\frac{3}{5}$ or 0.6
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5 fill in the blank 1 point 5 f is the independent variable | f | 3 | 5…
$25f$
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at the start of summer vacation, wesley decides to learn a number of ka…
The rate of change is $20$. It represents the number of characters Wesley learns 20 each week.
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multiple choice question which of the following best describes a freque…
A. A grouping of qualitative data into classes showing the number of observations in each class.
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multiple choice question the value shown on the vertical axis of a cumu…
counting the number of observations less than the upper limit of the class
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multiple select question select all that apply which of the following w…
- Gender of students in a business statistics course. - State of residence of students in a business statistics course. - Age of students in a business statistics course. - Majors…
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4. kofi plans to run 30 miles this week. he wants to run the same numbe…
### Question 4: Kofi is not correct. If he runs $\frac{7}{30}$ mile each day for 7 days, he only runs $\frac{49}{30}$ miles total, which is much less than his 30-mile goal. To run…
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8. find the missing values in the ratio table. then write the equivalen…
## Completed Table: | Feet | $\frac{1}{24}$ | $\frac{1}{12}$ | $\frac{1}{8}$ | $\frac{1}{48}$ | |------|----------------|----------------|---------------|----------------| | Inche…
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inferring from a ratio mr. rodriguez asked 60 randomly chosen students …
Yes, Mr. Rodriguez made a reasonable inference. 20% of the randomly selected 60 students chose science fiction, and applying this proportion to the 150 total students gives $0.2 \…
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name armani: t date 1. solve using a tape diagram. a. $\frac{1}{4}$ of …
a. 6 b. 12 c. 12 d. 6 e. 21 f. 36 g. $10\frac{1}{3}$ h. 8 i. $6\frac{1}{4}$ j. 15
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multiple choice question a frequency distribution table shows the numbe…
Frequency is plotted on the vertical axis and the class midpoint is plotted on the horizontal axis.
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multiple select question select all that apply which of the following c…
- The shape of the distribution. - The approximate number of observations. - The spread of the data.
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multiple choice question which of the following operations is true rega…
A. The relative frequency is found by dividing the class frequencies by the total number of observations.
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5 of 10 concepts completedmultiple choice questionwhich of the followin…
It can show the total number of observations less than a particular class' upper limit.
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multiple choice question which one of the following is true regarding r…
Raw data are simply a listing of data before summarizing it.
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7. find the missing values in the ratio table. then write the equivalen…
Missing value: 80 Equivalent ratios: $20:\frac{1}{6}$, $80:\frac{2}{3}$, $10:\frac{1}{12}$, $90:\frac{3}{4}$ (all simplify to $120:1$)
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multiple select question select all that apply which of the following a…
- The percentage of observations in each class is provided. - No observation can fit into more than one class. - They can be used for quantitative data. - They can be used for qua…
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multiple choice question in a frequency polygon the points are plotted …
class midpoints
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ordering question click and drag on elements in order place the followi…
1. Decide on the number of classes. 2. Determine the class interval. 3. Set individual class limits. 4. Tally the number of observations in each class.
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4. the new vigo the vampire hunter novel is 520 pages. skyler has read …
a. Ramon reads faster. b. Approximately 16.77 hours (or exactly $\frac{520}{31}$ hours). Ramon's reading rate is 31 pages per hour, so dividing the total 520 pages by this rate gi…
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multiple choice question which of the following features is not part of…
The frequency of occurrence of a nominal variable.
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solve problems involving inferences and sample size and write about the…
Most students in the school would like to have more laptops available in the library.
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multiple select question select all that apply which of the following a…
A. Use classes and frequencies to organize data C. Organize raw data D. It provides the tally for each class.
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5. a bag contains: • 3 blue marbles • 4 red marbles • 11 green marbles …
1. The experimental probability of drawing a blue marble is $\frac{11}{45}$ (or approximately 0.244) 2. The experimental probability of both coins landing on tails is $\frac{13}{5…
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calories 20 □ 10 90 miles $\frac{1}{6}$ $\frac{2}{3}$ □ □ the equivalen…
The missing values are: - Calories for $\frac{2}{3}$ miles: $80$ - Miles for 10 calories: $\frac{1}{12}$ - Miles for 90 calories: $\frac{3}{4}$ Filled table pairs: $80:\frac{2}{3}…
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multiple choice question suppose that the miles per gallon for 80 cars …
0.20
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multiple choice question the mode of a set of data is _______. ○ the va…
the value or values that occur most often
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multiple select question select all that apply which of the following a…
A. Raw data can be either qualitative or quantitative. B. When the data is in its original form it is referred to as raw data.
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multiple choice question a relative frequency distribution shows: ○ the…
the fraction or percentage of observations in each class interval
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multiple select question select all that apply which of the following w…
A. Age of students in a business statistics course. B. State of residence of students in a business statistics course. C. Majors of students in a business statistics course. D. Ge…
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multiple choice question what is the final step in creating a frequency…
Count the number of observations in each class.
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multiple choice question which one of the following is not a characteri…
It summarizes qualitative data.
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fill in the blank question the ______ of a set of data is the value or …
mode
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jada knit a total of 15 centimeters of scarf over 3 nights. how many ni…
19 nights
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multiple choice question which of the following is a feature of a relat…
The sum of the relative frequencies must be one (assuming no rounding errors).
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lorenzo jarred 15 liters of jam after 5 days. how much jam did lorenzo …
30 liters
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multiple select question select all that apply which of the following a…
A. They can be used for quantitative data. B. No observation can fit into more than one class. C. They can be used for qualitative data.
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identify whether the table given below is a frequency table or a freque…
This is a frequency table.
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name:date: february 10, 2016 period: 3/4/4bassignment - probability, da…
$\frac{1}{9}$
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norma took a total of 12 quizzes over the course of 3 weeks. how many w…
10 weeks
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2 look at the example. suppose only 5 classrooms share 4 packages. how …
Each classroom would get $\frac{4}{5}$ of a package. The model would show 4 total packages split equally into 5 parts (each classroom's share), and the answer is the reciprocal of…
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larry bought 15 postcards during 3 days of vacation. after 4 days of va…
20 postcards
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aisha knit a total of 12 centimeters of scarf over 3 nights. how many n…
4 nights
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ayana learned a total of 6 appetizer recipes over the course of 3 weeks…
18 appetizer recipes
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chapter 2 - target practice file home insert share page layout formulas…
## Corrected Cut-Offs: | Metric | Ping Pong | Crumpled Paper | |--------------|-----------|----------------| | IQR-Low | -8 | -3 | | IQR-High | 8 | 5 | | SD-Low | -4.7159 | -1.769…
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practice: ratios and ratio tablescalories 20 □ 10 90miles $\frac{1}{6}$…
The completed ratio table and equivalent ratios are: Calories: $80$; Miles: $\frac{1}{12}$, $\frac{3}{4}$ Equivalent ratios: $20:\frac{1}{6}$, $80:\frac{2}{3}$, $10:\frac{1}{12}$,…
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11. caleb paid $4.50 for 12 bagels. describe a unit price for bagels th…
Any unit price greater than $0.375 per bagel, for example, $0.40 per bagel (or $0.50 per bagel, $0.38 per bagel, etc.) is a valid answer.
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2 check my work wachesaw manufacturing incorporated produced the follow…
a. 4 b. 1.5 c. 25
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wachesaw manufacturing incorporated produced the following number of un…
a. 4 b. 1.5
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bridgette read a total of 12 books over 2 months. after belonging to th…
18 books
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akira spent 6 minutes on the phone while routing 2 phone calls. in all,…
3 phone calls
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multiply. try using the cross-cancel strategy to simplify the problem. …
8
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all year 3. marli gets to choose one sweet treat and one salty treat fr…
$\frac{1}{9}$ --- ### Problem 5
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jackie took a total of 8 quizzes over the course of 2 weeks. after atte…
12 quizzes