統計與機率
資料分析、機率分佈、假設檢定與統計方法。
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grade 8 practice 8.ee.a.3: scientific notation www.jmap.org name: tyrei…
1. [C] $7.58 \times 10^4$ 2. [C] $2.22 \times 10^6$ 3. $7.13 \times 10^5$ 4. $9.28 \times 10^4$ 5. $5.64 \times 10^6$ 6. [C] $1.21 \times 10^{-2}$ 7. [C] $3.46 \times 10^{-4}$ 8. …
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a researcher for a polling organization used a random sample of 1,540 r…
C. The polling organization can be 95% confident that the interval from 0.455 to 0.505 captures the proportion of all city voters who would vote for Jones.
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chapter 2: expressions and interactivity > 2.2 mathematical expressions…
$\frac{\text{tickets1} + \text{tickets2} + \text{tickets3}}{\text{class1} + \text{class2} + \text{class3}}$
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practice: ratios and ratio tables white grape juice: $\\frac{3}{4}$ cup…
Part A: $8:3$ Part B: $\frac{8}{3}$
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3) $\frac{(1.8 \\times 10^{5})}{(3 \\times 10^{2})}$ $0.6 \\times 10^{3…
3) $6 \times 10^{2}$ 4) $9 \times 10^{4}$ 5) $8.036 \times 10^{12}$ 6) $1.2 \times 10^{6}$ 7) $5.02 \times 10^{-8}$ 8) $4.32 \times 10^{11}$ 9) $8.001 \times 10^{14}$ 10) $0.00001…
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an inspector inspects large truckloads of potatoes to determine the pro…
The inspector can be 95% confident that the interval from 0.063 to 0.204 captures the proportion of all potatoes on the truck with blemishes.
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practice: ratios and ratio tables club soda 4 cups part a. write the ra…
2
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2.fruit punch ingredientschopped watermelon 3 cupssugar $\frac{3}{4}$ c…
The ratio is $2:1$
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this scatterplot shows the relationship between the number of slices of…
x=0
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a random sample of roosevelt high school students was asked if they pre…
No. Since the interval contains values above 0.5, it is plausible that more than 50% of students prefer using a computer for notes.
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a yogurt company claims that it prints a free yogurt coupon under a ran…
The company's claim may be justified because 0.2 is in the confidence interval.
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a study was done to estimate the mean commute time for a population of …
No, because 45 minutes is greater than the upper bound of the confidence interval.
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this scatterplot shows the relationship between the number of slices of…
slope
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a statistics class weighed 20 bags of grapes purchased from the store. …
The store is justified in stating that the average weight of the bags is 16 ounces because 16 ounces is in the confidence interval.
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a quality control inspector selects 12 bottles of apple juice at random…
No, since the advertised value of 300 ml is in the confidence interval.
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a newspaper poll found that 54% of the respondents in a random sample o…
We are 95% confident that the interval from 0.48 to 0.60 captures the true proportion of voters who would vote for Roberts.
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college - understanding use the information below to answer the questio…
doing your own research
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ms. k. murphy directions: answer true or false to the following stateme…
1. True 2. False 3. True 4. True 5. False 6. False 7. False 8. False 9. False 10. False
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part a. write the ratio of mint leaves : chopped watermelon the ratio i…
$\frac{1}{6}$
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practice: ratios and ratio tablesfruit punch ingredientschopped waterme…
$1:6$
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renovation. if the number of square feet is 238 more than the number of…
B. 17 days
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the impact of social media on your employment use the information below…
private
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effective communications use the information below to answer the questi…
explain your point of view calmly and respectfully
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meaningful monday: feb. 9 using a thesaurus look at this thesaurus entr…
The flu is going around school.
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14/15 in the given relation, what domain value corresponds to the range…
D. 0
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13/15 for the function {(0,1), (1,-3), (2,-4), (-4,1)}, write the domai…
D:{0, 1, 2, -4} R:{1, -3, -4}
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12/15 x y -2 -7 -1 -4 0 -1 1 2 2 5 what is the domain of this chart of …
$\{-2, -1, 0, 1, 2\}$
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after a sale, jules pays about 72% of his total price on a tv. estimate…
A. $170$
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a recipe for lemonade has a proportional relationship between the amoun…
Graph B
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10/15 for the function {(0,1), (1,-3), (2,-4), (-4,1)}, write the domai…
B. D: {-4, 0, 1, 2} R:{-4, -3, 1}
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identify the domain of the following relation: {-6, 14, 2, 28} {(-6,14)…
{-6, 0, 2, 4}
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7/15 identify the range in the following relation: {(9, 7), (6,4), (3,0…
{7, 4, 0, -2}
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leyan bought $2\\frac{3}{4}$ pounds of apples for $1.32 per pound, $1\\…
$\boldsymbol{2\frac{3}{4}(1.32) + 1\frac{1}{2}(1.20) + x = 9.63}$
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what range is shown in the table?{x: 2, 1, 3, 2, 4; y: -2, 7, 7, 7, ?}o…
$\{-2, 3, 7\}$ (corrected intended answer should be $\{-2,7\}$, but this is the closest option matching range as a set of $y$-values) *Note: The correct range from the provided vi…
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wrote a document called the declaration of sentiments, modeled on the d…
- "He has not ever permitted her to exercise her... right to the elective franchise." → Men have prevented women from voting in elections. - "He has taken from her all right in pr…
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⚠ your teacher has been alerted that you left the tab. | x | y | | ----…
No
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17/20 x | y -2 | 1 -1 | 1 1 | 3 2 | 3 does this table represent a funct…
Yes
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4. a classroom has 18 girls and 12 boys. what is the ratio of girls to …
$3:2$
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15/20 input output 1 11 2 13 3 15 4 17 5 19 find the rate of change 1 2…
2
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14/20 you can buy 36 cookies for $4. what is the unit rate (in cookies …
9 cookies per dollar
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13/20 x | y 3 | 1 -2 | -4 0 | 2 3 | 6 is this table a function or not a…
Not a Function
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12/20 x\ty -12\t4 -5\t5 10\t-8 12\t10 is the relation a function? yes, …
yes, it is a function
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2. nature maple syrup is made by collecting sap from sugar maple trees …
$\{(2, 80), (3, 120), (6, 240), (8, 320)\}$
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one of the largest reform movements was called the temperance movement.…
Corrected text: These images argue that drinking alcohol has harmful effects on people's lives and that temperance has good effects. So, the images were likely made by people who …
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student name_________ period_________world history and geography 1, uni…
### Start to Class: 1. Against: Disrespects 9/11 victims, dishonors attack site 2. For: Upholds religious freedom, fosters interfaith dialogue 3. Tolerance: Respect/accept diverse…
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student name_________ period________world history and geography 1, unit…
### Start to Class: 1. Arguments against: Disrespectful to 9/11 victims, insensitive proximity to Ground Zero. 2. Arguments supporting: Symbol of religious freedom, inclusive comm…
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exponential from two points (context)score: 0/1 penalty: nonequestionma…
$\$2979$
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a lender offers a three-day \grace period.\ which statement explains wh…
D. A borrower will not be charged additional fees for late payments if they are made during those three days
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question mav purchased a new car in 2001 for $27,900. the value of the …
$\boldsymbol{10683}$
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12/22 x 1 2 3 4 y 5 7 9 11 is function represented by the table linear …
linear
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10. 14: 14 28· 4: 4 8 12 16 20·24 28 1 cm 28 11. derek shopping for hot…
Derek needs to buy 24 hot dogs (3 packs) and 24 buns (2 packs) to have the same number of each.
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11/22 x\ty 0\t20 5\t16 10\t12 15\t8 is the function linear or nonlinear…
Linear
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match this number line to its correct solution. $x<1$ $x\\geq1$ $x>1$ $…
$x \geq 1$
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described as a lunar. the 304 days were followed by an unnumbered perio…
1. Durante el reinado de Julio César. 2. Enero: Janus (dios romano de los inicios y puertas); Marzo: Mars (dios de la guerra); Mayo: Maia (diosa de la primavera y el crecimiento);…
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the accompanying table shows the value of a car over time that was purc…
Regression Equation: $y = 15800.000(0.831)^x$ Final Answer: $\$1880.20$
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10/22 x f(x) 1 11 2 22 3 33 4 44 is this function linear or nonlinear? …
Linear
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9/22 x | y 1 | 1 2 | 4 3 | 9 is this function linear or non linear? lin…
Non Linear
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current objective create and interpret a binomial distribution with tec…
0.361
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the accompanying table shows the number of bacteria present in a certai…
## Regression Equation: $y = 939.99(1.09)^x$ ## Final Answer: 3732
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question 4 of 5 check your understanding 8.4 lo: recognize approaches t…
A. Customer experience and expectations
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question a certain cold remedy has an 82% rate of success of reducing s…
0.001
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5/22 which of the following is a function? x | f(x) 2 | -2 0 | 0 2 | 2 …
The top-left graph (the linear graph passing through the grid) is a function.
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sc3: i can justify why a linear or exponential model is the best choice…
1. The data multiplies by a constant factor over time 2. exponential
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sc2: i can create a best-fit model and interpret the meaning of constan…
1. starting amount 2. 5% growth rate
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question a town has a population of 10000 and grows at 2.5% every year.…
11887
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a town has a population of 14000 and grows at 5% every year. what will …
27719
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challenge suppose you have a bag with 20 letter tiles in it and 9 of th…
- P(C) as a fraction: $\frac{17}{50}$ - P(C) as a percent: $34\%$ - More likely bag: The second bag with 500 tiles
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the manager of a campus gym is planning the schedule of fitness classes…
The Venn diagram will have three overlapping circles labeled *Yoga*, *Pilates*, and *Spinning* with the following values: - Only Yoga: 2 - Only Pilates: 5 - Only Spinning: 4 - Yog…
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the amount of money in a savings account over time is given in the tabl…
Exponential function would better model the data because as $x$ increases, the $y$ values change by a nearly constant multiplicative factor. The growth factor of this function is …
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question 7 4 pts scanning means to put your trip on the internet. look …
D. glance quickly and continually.
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the amount of money in a savings account over time is given in the tabl…
Exponential function would better model the data because as $x$ increases, the $y$ values change by a nearly constant multiplicative factor. The growth factor of this function is …
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a ladder is 6 feet 10 inches tall. how tall is it in inches?
82 in
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a board is 90 inches long. how long is it in feet and inches?
7 ft 6 in
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there are 4 jacks and 13 clubs in a standard 52 - card deck of playing …
A. \( \frac{4}{13} \)
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type the correct answer in each box. kayla has a bowl of beads that con…
First box: 30 Second box: 46
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kelpe used 3.5 cups of batter to make a cake. he wants to know how much…
(a) Double number line: - Left (cups): 0, 3.5 - Right (fluid ounces): 0, 28 (b) 28 fluid ounces
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select the correct answer. of the 27 players trying out for the school …
D. \(\frac{5}{9}\)
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select the correct answer. in a group of 55 people, 33 are coffee drink…
D. \(\frac{2}{11}\)
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isabel used 22 quarts of gasoline on a road trip. she wants to know how…
(a) Double number line: Top (quarts): Left box = 0, Right box = 22 Bottom (gallons): Left box = 0, Right box = 5.5 (b) $5.5$ gallons
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type the correct answer in the box. if necessary, use / for the fractio…
$\frac{29}{40}$
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using measures of center and variability to drag the values of the mini…
minimum: $3.1$ Q1: $3.4$ median: $3.7$ Q3: $5.2$ maximum: $6.3$
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build a boxplot using the data for com-coms download speed. what is the…
45
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build a boxplot using the data for com-com’s download speed. what is th…
45
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using measures of center and variability to compare data - tutorial - l…
5.3
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build a boxplot using the data for com-com’s download speed. what is th…
$9.1$
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using measures of center and variability to compare data - tutorial - l…
$6.5$
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using measures of center and variability to compare data tutorial level…
The median (8.8 seconds) more accurately represents the typical download time, as the mean is skewed upward by the outlier value of 45 seconds.
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what is com - coms median amount of download time, in seconds, for 15 l…
8.8 seconds
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what is com-com’s mean amount of download time, in seconds, for the 15 …
10.27 seconds
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2) calculate the mean of the data 9, 10, 12, 13, 13, 13, 15, 15, 16, 16…
The mean of the data is \(16.75\)
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5 mrs chua poured 8 ℓ of oil into some bottles. each bottle contained \…
10 bottles
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devi made 10 pancakes for all the children at a party. each child at th…
50
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3 there is \\(\\frac{5}{6}\\) of a pie on a table. mother cuts the pie …
\(\frac{1}{12}\)
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there are nine train stations in a certain county. the blue line and re…
(a) Descriptive form: The set of stations along the Blue Line (b) Roster form: {Belen, Ozark, Utica, Flint, Provo} (c) Roster form: {Belen, Ozark, Utica, Arbor, Dover, Huron, Sale…
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a certain college offers free tutoring for nine subjects. here is the t…
(a) Descriptive form: The set of subjects offered for tutoring on Monday or Wednesday (b) Roster form: {Art, Bio, Econ, Psych, Chem, English, Stats} (c) Descriptive form: The set …
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a certain college offers free tutoring for nine subjects. here is the t…
For part (b), the roster form is $\{ \text{Art}, \text{Bio}, \text{Chem}, \text{Econ}, \text{English}, \text{Psych}, \text{Stats} \}$
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on friday nights, a television network airs four sitcoms and three dram…
1. The set containing the drama most watched by women and the drama least watched by men in the Friday night line-up: Yes 2. The set containing only the show in the Friday night l…
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module 2 - quiz 2 started: feb 8 at 3:11am quiz instructions this quiz …
Pareto chart
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how many whole loaves does each person get? 1 what can you do to contin…
\(1.4\)
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problem 4 making a prediction got it? a. use the graph of the sales inf…
a. A conjecture is that backpack sales in June will be around 8000 units, continuing the steady monthly downward trend seen from November to May. b. No, it is not reasonable. The …