Statistics & Probability
Data analysis, probability distributions, hypothesis testing, and statistical methods.
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3. the table below shows the lengths and corresponding ideal weights of…
- Equation: \( y \approx 4.36x - 156.14 \) (or more precise \( y \approx 4.3571x - 156.14 \)) - \( r \approx 0.999 \) - Weight expected: \( \approx 170.64 \) (or ~171) - Correlati…
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a dairy farm produced 87.27 gallons of milk. the farm used 15.38 gallon…
71.89
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complete the frequency table for the following set of data. you may opt…
For Interval 0–2: 3 For Interval 3–5: 2 For Interval 6–8: 8 For Interval 9–11: 2 (Assuming the table needs each frequency filled. If only one was asked, but the problem says "comp…
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chandler bought 66.78 pounds of fruit for a class party. the class ate …
3.16
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5×4= ( × ) + ( × ) +
\((3\times4)+(2\times4)\) (or other valid splits like \((4\times4)+(1\times4)\), etc.), and \(12 + 8\) (or corresponding sums) gives \(20\). The boxed answer for the multiplicatio…
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it snowed 0.8 inches on monday and 0.5 inches on tuesday. how much did …
\( 1.3 \)
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what words normally indicate slope or rate of change? and, or each, per…
B. each, per (assuming the options are labeled as A. and, or; B. each, per; C. there, then)
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daniel got on a train and rode for 590.75 miles. then he switched to a …
\( 1574.87 \)
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2. the table below gives the number of hours spent studying for a scien…
Equation: \( y \approx 6.09x + 63.93 \) (or more precise \( y=\frac{755}{124}x+\frac{551 - \frac{755}{124}\times17}{7} \)) \( r \approx 0.99 \) (strong positive correlation) Grade…
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chandler bought 6.6 pounds of fruit for a class party. the class ate 3.…
3.5
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frequency (number of students) 0 0 1 2 3 4 5 6 7 8 9 10 number of socia…
5
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miranda mixed 0.99 grams of salt into a pot of soup she was cooking. be…
1.94
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caden had 0.86 grams of pepper. then he used 0.49 grams of the pepper t…
\( 0.37 \)
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Question was provided via image upload.
1.29
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elva monitors her savings account online. on monday she withdraws money…
Elva's account balance decreased by \$11.75. So the word to fill in the blank is "decreased".
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elva monitors her savings account online. on monday she withdraws money…
\(-11.75\)
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elva monitors her savings account online. on monday she withdraws money…
The best approximation of the total change in Elva's account balance is \(\boldsymbol{-\$10}\) (the first option: \(-\$10\)).
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add. 11.508 + 57.736 + 90.736 = submit
\( 159.98 \)
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add. 7.8237 + 62.889 + 0.4489 = submit
71.1616
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5. how does laura feel about her classmates treatment of rachel during …
A. Laura doesn't understand her classmates' cruelty toward Rachel.
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what elements does an effective interpretation of a quotation in a lite…
A. an explanation of the meaning in the interpretation, C. an explanation of the author’s viewpoint, D. an explanation of the connection to literature
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read the paragraph. ben looked forward to meeting his cousins at their …
looked forward to
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navajo hogans were used for traditional navajo healing ceremonies. many…
1. The Navajo believed illness was caused by not living in harmony with nature. When someone became ill, a ceremonial singer called a hataali could be asked to help the person who…
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add. 6.79 + 1.01 = submit
$7.8$
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like the ancestral pueblo, another group called the hohokam found creat…
A. Many people worked together on farming projects. B. They were skilled builders and engineers.
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1. tyesha rides her bike 1.025 miles from school to the library. she ri…
\(1.765\) miles ### Problem 2
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a submarine was operating 234 feet below the surface of the ocean. then…
-122
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badwater basin, california, has the lowest elevation in north america. …
272
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7 from unit 4, lesson 1 jada has a sleeping bag that is rated for 30 °f…
\( t \geq 30 \) (where \( t \) is the outdoor temperature in \( ^\circ\text{F} \))
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an ocean sunfish was swimming 125 meters below the oceans surface. whil…
-240 (ou 240 mètres en dessous de la surface, mais dans la case, on peut écrire 240 en considérant que la direction en dessous est représentée par un signe négatif ou simplement l…
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cora is learning to scuba dive. while diving with her instructor, she w…
55
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in the mars cars video game, players gain and lose points by avoiding o…
-25
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20. define extraneous. a) irrelevant or unrelated to the subject being …
a. Irrelevant or unrelated to the subject being dealt with ### Question 21: What is the meaning of 'urge'?
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solve the following logarithmic equation. be sure to reject any value o…
$2^2 = 8x + 9$ (or simplified as $4 = 8x + 9$)
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overnight, the temperature in chicago was just -7°f. but by the afterno…
$2$
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jeffrey is learning to play the mongo monsters video game. he started t…
$-22$
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quarters are currently minted with weights normally distributed and hav…
For $\chi^{2}$: $\boldsymbol{13.455}$ (d) Reject (e) B. Since the null hypothesis is rejected, the new equipment appears to be more effective.
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type the correct answer in the box. use numbers instead of words. a pro…
16
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researchers conducted a study to determine whether magnets are effectiv…
a. The correct hypothesis option is B. $H_0:\mu_1=\mu_2$, $H_1:\mu_1 > \mu_2$ b. The confidence interval for $\mu_1-\mu_2$ is $\boldsymbol{-1.06<\mu_1 - \mu_2<1.19}$
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fill in the blank 20 points a) a pair of dice are tossed. find the prob…
\(\frac{1}{6}\) ### Part B
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the word microscope contains the root scope. what does the root scope m…
look at or observe
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diego owns a small ice cream shop called sweet scoops. to make his ice …
s: a. Yes, because \( \frac{p}{g} \) is constant (\( 8 \)). b. The constant of proportionality is \( 8 \). c. The equation is \( \boldsymbol{p = 8g} \).
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3 fill in the blank 20 points roberto is the owner of a car dealership.…
A) \(\frac{5}{9}\) B) \(\frac{1}{2}\)
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question 6 according to the article, which best describes the differenc…
C. Sailors got their tattoos out of superstition, while Civil War soldiers got their tattoos as a means of identification.
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the word multiply contains the root multi. what does the root multi mea…
many
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question 5 which of these is a statement of fact? a. tattoo artists who…
C. Some people get tattoos that have special meaning to them or express a point of view.
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question 4 4 / 8 the article states: these marks were a means of identi…
B. mysterious
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the word telegraph contains the root tele. what does the root tele mean…
far away
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at 2pm, the temperature was 15 degrees. by midnight, the temperature dr…
-15 degrees (corresponding to the option " -15 degrees")
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the word retract contains the root tract. what does the root tract mean…
pull or drag
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form b continued 4 brendan throws a rock into a pond. the bottom of the…
0
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how would the meaning of \an indians view of indian affairs\ most likel…
A. It would appear as an accusation rather than a plea
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question 4 the article says: so, when did tattoos become a thing? they …
A. liked by many people
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part 1: matching scenarios, tables, and equations directions: cut out t…
To solve the problem of finding the number of tiles for a 28.5 - square - meter ceiling (Scenario A), we can use the following steps: ### Step 1: Identify the relationship We know…
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12. check for reasonableness a question on a test provides this graph a…
The speed of the car is 64 miles per hour. ### Part (b)
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researchers conducted a study to determine whether magnets are effectiv…
B. \(H_0: \mu_1 = \mu_2\), \(H_1: \mu_1 > \mu_2\)
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drag each tile to the correct box. students in three levels of art clas…
the percentage of clay pieces entered by Art 3 students, the percentage of all entries that were painted by Art 1 students, the percentage of Art 2 students who entered digital pi…
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homework question 6, 9.2.11-t part 4 of 7 hw score: 56.74%, 6.81 of 12 …
a. The correct option is B. \(H_0:\mu_1=\mu_2\), \(H_1:\mu_1 > \mu_2\) b. The test statistic \(t = 0.17\) c. The \(P - value=0.433\) d. We fail to reject the null hypothesis. Ther…
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evaluate the following sum. \\(\\sum\\limits_{k=1}^{3} \\frac{k^3}{9} +…
40
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a research center claims that at least 30% of adults in a certain count…
\( z\approx - 3.62 \)
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summary: reams of paper the equation h = 2.5r represents the height in …
2.5 represents the height (in inches) of 1 ream of paper. ### Part b
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ah, well, i havent given up all hope yet. once ive gotten the money to …
From Gregor’s reaction, we learn he is **responsible** (plans to pay parents’ debt), **resilient** (holds onto hope), **dedicated to work** (urges to catch 6 A.M. train), and **lo…
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scott buys a cell phone priced at $63. if the sales tax is 6%, how much…
\( 3.78 \)
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researchers conducted a study to determine whether magnets are effectiv…
For the first part (Does it appear that magnets are effective...): A. It appears that magnets are not effective in treating back pain, because \(0\) is in the confidence interval.…
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sydney read 50 pages in 40 minutes. she reads at a constant rate. how m…
1.25
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11. apply math models the graph shows the number of calories natalia bu…
The slope of the line is \( 10 \). ### Part b:
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select the synonym of the word in bold. mr. mcmillan is always looking …
(Assuming typical options, e.g.,) A. deal (or the specific option with "deal" or equivalent meaning related to a good purchase offer)
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7. the cost of 3 boxes of envelopes and 4 boxes of notebook paper is $1…
The cost of one box of envelopes is \(\$1.15\) and the cost of one box of notebook paper is \(\$2.45\).
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the p - value is 0.466. (round to three decimal places as needed.) stat…
A. It appears that magnets are not effective in treating back pain, because 0 is in the confidence interval. ### Part c (Validity of Arguing with Larger Sample Sizes)
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practice using the exponential growth formula by completing the table b…
82309
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select the correct text in the table. a small musical ensemble has work…
Rate of Change: The amount the earnings increase for each additional hour the ensemble plays y - intercept: The flat fee for party reservations
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number of hours (x) | cost in dollars (y) 1 | 65 2 | 105 3 | 145 4 | 18…
B. The rate of change is 40.
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write as a fraction. 0.525 0.525 = \\square (simplify your answer. t
\( \frac{21}{40} \)
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jen buys 4 tires for $272. each tire was the same price. what is the co…
The cost of 1 tire is $68.
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a car traveled 180 miles at a constant rate. a. complete the table to s…
### Part a Table: | Travel Time (hours) | Rate of Travel (miles per hour) | |---------------------|---------------------------------| | 5 | 36 | | 4.5 | 40 | | 3 | 60 | | 2.25 | 8…
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6 lin has a scale model of a modern train. the model is created at a sc…
The actual height of the train is \( 4.386 \) meters.
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homework question 6, 9.2.11 - t part 6 of 7 hw score: 55.86%, 6.7 of 12…
## Part (a) A. $H_0:\mu_1 = \mu_2$, $H_1:\mu_1>\mu_2$ ## Part (b) Fail to reject the null hypothesis. There is not sufficient evidence to support the claim that those treated with…
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a cake machine needs to be programmed to make cakes. the cake recipe re…
\(\frac{5}{4}\) ### Part (b)
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5 from unit 3, lesson 6 it takes 10 pounds of potatoes to make 15 pound…
22.5 pounds ### Part (b)
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5. mrs. nguyen interviewed 300 students at masuda on their favorite fru…
168
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the values for three sets of data are shown below. | data set | data va…
A. Sets 1 and 2 contain outliers.
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question 1 (2 points) financial wellness uses your financial literacy a…
True ### Question 2
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a movie producer conducted a survey after the screening of his movie to…
A. Excellent
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a research center claims that at least 30% of adults in a certain count…
\(z_0=\boxed{-1.64}\) (or \(\boxed{-1.65}\), but the more accurate value rounded to two decimal places from the z - table for \(P(Z < z)=0.05\) is \(-1.64\) or \(-1.65\). The most…
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stefano calculated the mean absolute deviation for the data set 32, 4, …
Stefano used 4 (incorrect number of data points, should be 6) in the denominator when calculating MAD. Also, he misapplied the number of data points (there are 6 data points, not …
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justices often vote to maintain the influence and standing of the court…
A. ideological
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students reported practicing violin during the last semester for 45, 38…
6.4
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wills earnings number of weeks | total money ($) 0 | 140 1 | 160 2 | 18…
Less than
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which data set is the most spread from its mean? ○ 14, 26, 24, 28 ○ 22,…
B. 22, 16, 18, 36
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writing equations using constant of proportionality cake recipes 1. the…
s: a. The completed table is as shown above. b. The constant of proportionality is \(\boldsymbol{6}\). c. It means each cake requires 6 ounces of milk. d. The equation is \(\bolds…
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veronika’s five test scores are 59, 80, 95, 88, and 93. if the outlier …
5
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a research center claims that at least 30% of adults in a certain count…
F. \( H_0: p \geq 0.30 \), \( H_a: p < 0.30 \)
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a research center claims that at least 30% of adults in a certain count…
B. At least 30% of adults in the country think that their taxes will be audited.
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the values for three different sets of data are shown below. | data set…
Sets 2 and 3 contain outliers.
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a construction crew is lengthening a road. let y represent the total le…
(a) 57 miles (b) 3 miles
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drag each label to the correct location on the equation. not all labels…
\( y=-0.04x + 17.3 \) (So in the blanks, the first blank is -0.04, the second blank is 17.3)
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3. there are 15 coins in a piggy bank. five are nickels, 8 are pennies,…
The ratio of pennies to quarters is \( 8:2 \) (or simplified to \( 4:1 \)).
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43. the scatter plot shows the size and annual rents of some office spa…
c. There is a strong positive relationship between the cost of rent and the size of the office space. ### Question 44
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the weights of six animals at the zoo are shown in the table below. wei…
\(22.7\)
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keith is a software salesman. let y represent his total pay (in dollars…
(a) \(\$110\) (b) \(\$2500\)